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2026-03-31
BATS: Corporate Credit Total Return Series
BATS: Corporate Credit Total Return Series
BRACX
This annual shareholder report contains important information about BATS: Corporate Credit Total Return Series (the “Fund”) for the period of April 1, 2025 to March 31, 2026.
annual shareholder report
You can find additional information about the Fund at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span>. You can also request this information by contacting us at (800) 441‑7762.
blackrock.com/fundreports
(800) 441‑7762
<div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 8pt; color: rgb(0, 0, 0); margin: 5pt 0px 5pt 0px;">This report describes changes to the Fund that occurred during the reporting period.</div>
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What were the Fund costs for the last year?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin: 0px;">(based on a hypothetical $10,000 investment)</div>
<table style="page-break-inside: avoid; margin-top: 2pt; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a <br/>$10,000 investment</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">BATS: Corporate Credit Total Return Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span></td> </tr> </table>
<table style="page-break-inside: avoid; margin-top: 2pt; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than $1.</div> </td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table>
0
0.0000
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 0px;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">How did the Fund perform last year?</div> </div> <ul style="break-inside: avoid; padding: 0; margin: 0 0 3.5pt 0;"> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the reporting period ended March 31, 2026, the Fund returned 5.06%.</div> </li> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the same period, the Fund's benchmark, the Bloomberg U.S. Aggregate Bond Index returned 4.35% and the Bloomberg U.S. Credit Index returned 4.84%.</div> </li> </ul> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What contributed to performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The Fund’s allocation to the banking was the largest contributor to the performance, followed by utilities and capital securities.</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What detracted from performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The Fund’s allocation to retailers was the largest detractor, followed by other financials and integrated energy.</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;"><i>The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.</i></div> </div>
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0);"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 5pt;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Fund performance</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Cumulative performance: April 1, 2016 through March 31, 2026</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Initial investment of $10,000</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt;">
<img alt="Fund Performance - Growth of 10K" src="g340507chartimages_11646861.jpg" style="display: block; margin-right: auto; margin-left: auto; width: 525pt;"/> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: -10pt; font-style: normal; font-size: 7pt; padding: 0px; margin: 0px;">See “Average annual total returns” for additional information on fund performance.</div> </div> </div>
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Average annual total returns</div>
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<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; width: 100%; text-indent: -6pt; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">5 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">10 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">BATS: Corporate Credit Total Return Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">5.06</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.09</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">3.11</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Aggregate Bond Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.35</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">0.31</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.70</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">Bloomberg U.S. Credit Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">4.84</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">0.77</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">2.70</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table>
BATS: Corporate Credit Total Return Series
0.0506
0.0109
0.0311
Bloomberg U.S. Aggregate Bond Index
0.0435
0.0031
0.0170
Bloomberg U.S. Credit Index
0.0484
0.0077
0.0270
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Key Fund statistics</div>
<table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>503,463,738</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;">867</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;">158<span>%</span></td> </tr> </table>
503463738
867
0
1.58
Past performance is not an indication of future results.
Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.
Visit <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com</span> for more recent performance information.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What did the Fund invest in?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">(as of March 31, 2026)</div> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Portfolio composition</b></div>
<table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Investment Type</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Corporate Bonds</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">88.0</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Preferred Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">4.7</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Foreign Government Obligations</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">3.4</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">U.S. Treasury Obligations</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">2.5</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Municipal Bonds</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.8</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Foreign Agency Obligations</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;">0.6</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr> </table> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Credit quality allocation</b></div>
<table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Credit Rating<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;">Percent of Total<br/>Investments<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"><span style="white-space: nowrap;">AAA/Aaa<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(c)</sup></span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">2.7</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">AA/Aa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">6.8</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">A</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">32.4</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">BBB/Baa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">55.8</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">BB/Ba</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">1.1</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">N/R</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;">1.2</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr> </table>
<table style="table-layout: auto; border-collapse: collapse; page-break-inside: avoid; width: 100%; break-inside: avoid; margin-top: 0px;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; color: rgb(0, 0, 0); padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; color: rgb(0, 0, 0); width: 100%; padding: 1.6pt 0 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Excludes short-term securities, short investments and options, if any.</div> </td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</div> </td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(c)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.</div> </td> </tr> </table>
0.880
0.047
0.034
0.025
0.008
0.006
0.027
0.068
0.324
0.558
0.011
0.012
For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.
The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Material fund changes</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series C Portfolio to BATS: Corporate Credit Total Return Series. The Fund's Board also approved related changes to the Fund's strategies to under normal circumstances, invest at least 80% of its total assets in corporate fixed-income instruments and derivatives that provide investment exposure to such instruments or to one or more market risk factors associated with such instruments. These changes became effective on October 1, 2025.</div>
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div>
blackrock.com/fundreports
(800) 441-7762
On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series C Portfolio to BATS: Corporate Credit Total Return Series.
The Fund's Board also approved related changes to the Fund's strategies to under normal circumstances, invest at least 80% of its total assets in corporate fixed-income instruments and derivatives that provide investment exposure to such instruments or to one or more market risk factors associated with such instruments.
2025-10-01
BATS: High Income Municipal Series
BATS: High Income Municipal Series
BATEX
This annual shareholder report contains important information about BATS: High Income Municipal Series (the “Fund”) for the period of April 1, 2025 to March 31, 2026.
annual shareholder report
You can find additional information about the Fund at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span>. You can also request this information by contacting us at (800) 441‑7762.
blackrock.com/fundreports
(800) 441‑7762
<div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 8pt; color: rgb(0, 0, 0); margin: 5pt 0px 5pt 0px;">This report describes changes to the Fund that occurred during the reporting period.</div>
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What were the Fund costs for the last year?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin: 0px;">(based on a hypothetical $10,000 investment)</div>
<table style="page-break-inside: avoid; margin-top: 2pt; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a <br/>$10,000 investment</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">BATS: High Income Municipal Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;">0.18<span>%</span></td> </tr> </table>
<table style="page-break-inside: avoid; margin-top: 2pt; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than $1.</div> </td> </tr> </table>
0
0.0018
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 0px;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">How did the Fund perform last year?</div> </div> <ul style="break-inside: avoid; padding: 0; margin: 0 0 3.5pt 0;"> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the reporting period ended March 31, 2026, the Fund returned 2.66%.</div> </li> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the same period, the Fund's benchmark, the Bloomberg Municipal Bond Index returned 4.29% and the Bloomberg Municipal High Yield Bond Index returned 2.35%.</div> </li> </ul> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What contributed to performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">Fund performance benefited from strength across several sectors, including other industries, utilities, corporate-backed, and tax-backed state. Results were further supported by holdings in longer-dated bonds, particularly those with maturities of 20 years and above, as well as positions in non rated, AA, BB, and BBB rated securities. Higher-coupon bonds also contributed meaningfully. The Fund's cash position had no material impact on performance.</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What detracted from performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">Transportation was the largest detractor at the sector level, due in part to weakness in Brightline, a project finance, transportation-related holding. Underperformance for short-dated issues, particularly bonds with maturities of less than three years, also pressured results. Positions in lower-coupon bonds detracted, as well.</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;"><i>The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.</i></div> </div>
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0);"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 5pt;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Fund performance</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Cumulative performance: April 1, 2016 through March 31, 2026</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Initial investment of $10,000</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt;">
<img alt="Fund Performance - Growth of 10K" src="g340507chartimages_11646906.jpg" style="display: block; margin-right: auto; margin-left: auto; width: 525pt;"/> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: -10pt; font-style: normal; font-size: 7pt; padding: 0px; margin: 0px;">See “Average annual total returns” for additional information on fund performance.</div> </div> </div>
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Average annual total returns</div>
<table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; width: 100%; text-indent: -6pt; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">5 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">10 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">BATS: High Income Municipal Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">2.66</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.65</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.02</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg Municipal Bond Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.29</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">0.84</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">2.16</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg Municipal High Yield Bond Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">2.35</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.90</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.14</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">Customized Reference Benchmark</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">3.06</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">1.57</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"><span class="sec-hidden" style="-sec-ix-hidden: h_41_7ad145a4_99e0_43e6_aa52_73a9000a0f78;">N/A</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table>
BATS: High Income Municipal Series
0.0266
0.0165
0.0402
Bloomberg Municipal Bond Index
0.0429
0.0084
0.0216
Bloomberg Municipal High Yield Bond Index
0.0235
0.0190
0.0414
Customized Reference Benchmark
0.0306
0.0157
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Key Fund statistics</div>
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<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>622,658,741</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;">761</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;">36<span>%</span></td> </tr> </table>
622658741
761
0
0.36
Past performance is not an indication of future results.
Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.
Visit <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com</span> for more recent performance information.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What did the Fund invest in?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">(as of March 31, 2026)</div> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Sector allocation</b></div>
<table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Sector</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">County/City/Special District/School District</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">41.7</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Transportation</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">16.9</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Health Care</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">13.5</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Utilities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">10.3</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Education</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">9.4</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Housing</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">4.6</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Tobacco</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">3.6</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Corporate</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"><span class="sec-hidden" style="-sec-ix-hidden: h_62_ad003c41_2027_b163_30a5_4acdd85249f6;">—</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span></td> </tr> </table> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Credit quality allocation</b></div>
<table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Credit Rating<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;">Percent of Total<br/>Investments</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">AAA/Aaa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">3.4</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">AA/Aa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">19.3</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">A</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">9.2</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">BBB/Baa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">9.0</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">BB/Ba</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">6.3</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">B</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">1.6</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">CCC/Caa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.3</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">N/R</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;">50.9</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr> </table>
<table style="table-layout: auto; border-collapse: collapse; page-break-inside: avoid; width: 100%; break-inside: avoid; margin-top: 0px;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; color: rgb(0, 0, 0); padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; color: rgb(0, 0, 0); width: 100%; padding: 1.6pt 0 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than 0.1%.</div> </td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</div> </td> </tr> </table>
0.417
0.169
0.135
0.103
0.094
0.046
0.036
0.034
0.193
0.092
0.090
0.063
0.016
0.003
0.509
For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Material fund changes</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series E Portfolio to BATS: High Income Municipal Series. The Fund's Board also approved related changes to the Fund's strategies to under normal circumstances, invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in investments the income of which is free from federal income tax and derivatives that provide investment exposure to such securities or to one or more market risk factors associated with such securities. These changes became effective on October 1, 2025.</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The net expense ratio increased from the prior fiscal year end primarily due to an increase in expenses related to financing activities.</div>
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div>
blackrock.com/fundreports
(800) 441-7762
On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series E Portfolio to BATS: High Income Municipal Series.
The Fund's Board also approved related changes to the Fund's strategies to under normal circumstances, invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in investments the income of which is free from federal income tax and derivatives that provide investment exposure to such securities or to one or more market risk factors associated with such securities. These changes became effective on October 1, 2025.
2025-10-01
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The net expense ratio increased from the prior fiscal year end primarily due to an increase in expenses related to financing activities.</div>
BATS: Interest Rate Hedge Series
BATS: Interest Rate Hedge Series
BATPX
This annual shareholder report contains important information about BATS: Interest Rate Hedge Series (the “Fund”) for the period of April 1, 2025 to March 31, 2026.
annual shareholder report
You can find additional information about the Fund at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span>. You can also request this information by contacting us at (800) 441‑7762.
blackrock.com/fundreports
(800) 441‑7762
<div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 8pt; color: rgb(0, 0, 0); margin: 5pt 0px 5pt 0px;">This report describes changes to the Fund that occurred during the reporting period.</div>
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What were the Fund costs for the last year?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin: 0px;">(based on a hypothetical $10,000 investment)</div>
<table style="page-break-inside: avoid; margin-top: 2pt; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a <br/>$10,000 investment</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">BATS: Interest Rate Hedge Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span></td> </tr> </table>
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<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than $1.</div> </td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table>
0
0.0000
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 0px;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">How did the Fund perform last year?</div> </div> <ul style="break-inside: avoid; padding: 0; margin: 0 0 3.5pt 0;"> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the reporting period ended March 31, 2026, the Fund returned 4.64%.</div> </li> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the same period, the Fund's benchmark, the Bloomberg U.S. Aggregate Bond Index returned 4.35% and the Bloomberg U.S. Treasury 7-10 Year Bond Index returned 4.05%.</div> </li> </ul> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What contributed to performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The Fund’s duration and yield curve positioning contributed to absolute returns. (Duration is a measure of interest rate sensitivity). Holdings in cash, U.S. interest rate and U.S. Treasury derivatives, and the BATS: Short Duration Taxable Total Return Series further contributed.</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The use and cost of derivatives will result in a negative contribution to returns when interest rates fall; however, the Fund’s strategy is designed to offset these costs by holding shares of BATS: Short Duration Taxable Total return Series a short-term proprietary fund. The use of derivatives is necessary to achieve the Fund’s objective and should therefore be evaluated in a portfolio context and not as a standalone strategy. The Fund's cash position had no material impact on performance.</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The Fund’s weighting in cash exceeded 5% throughout the period due to the use of interest rate derivatives that facilitate inverse exposure to the 7- to 10- year part of the U.S. Treasury yield curve.</div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What detracted from performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">At the time of positive returns for the Fund, no aspects of its positioning stood out as meaningful detractors.</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;"><i>The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.</i></div> </div>
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0);"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 5pt;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Fund performance</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Cumulative performance: April 1, 2016 through March 31, 2026</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Initial investment of $10,000</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt;">
<img alt="Fund Performance - Growth of 10K" src="g340507chartimages_11646996.jpg" style="display: block; margin-right: auto; margin-left: auto; width: 525pt;"/> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: -10pt; font-style: normal; font-size: 7pt; padding: 0px; margin: 0px;">See “Average annual total returns” for additional information on fund performance.</div> </div> </div>
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Average annual total returns</div>
<table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; width: 100%; text-indent: -6pt; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">5 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">10 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">BATS: Interest Rate Hedge Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.64</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">7.14</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">3.50</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Aggregate Bond Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.35</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">0.31</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.70</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Treasury 7-10 Year Bond Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.05</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">(0.55</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span>)</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">0.90</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">Bloomberg U.S. Bellwether 10 Year Swap Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">3.22</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">(1.03</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"><span>)</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">0.39</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table>
BATS: Interest Rate Hedge Series
0.0464
0.0714
0.0350
Bloomberg U.S. Aggregate Bond Index
0.0435
0.0031
0.0170
Bloomberg U.S. Treasury 7-10 Year Bond Index
0.0405
-0.0055
0.0090
Bloomberg U.S. Bellwether 10 Year Swap Index
0.0322
-0.0103
0.0039
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Key Fund statistics</div>
<table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>2,569,778</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;">13</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;">0<span>%</span></td> </tr> </table>
2569778
13
0
0
Past performance is not an indication of future results.
Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.
Visit <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com</span> for more recent performance information.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What did the Fund invest in?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">(as of March 31, 2026)</div> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Portfolio composition</b></div>
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<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Investment Type</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Fixed-Income Funds</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">27.9</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Short-Term Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;">72.1</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr> </table>
0.279
0.721
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Material fund changes</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series P Portfolio to BATS: Interest Rate Hedge Series. This change became effective on October 1, 2025.</div>
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div>
blackrock.com/fundreports
(800) 441-7762
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series P Portfolio to BATS: Interest Rate Hedge Series. This change became effective on October 1, 2025.</div>
2025-10-01
BATS: Mortgage Total Return Series
BATS: Mortgage Total Return Series
BRAMX
This annual shareholder report contains important information about BATS: Mortgage Total Return Series (the “Fund”) for the period of April 1, 2025 to March 31, 2026.
annual shareholder report
You can find additional information about the Fund at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span>. You can also request this information by contacting us at (800) 441‑7762.
blackrock.com/fundreports
(800) 441‑7762
<div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 8pt; color: rgb(0, 0, 0); margin: 5pt 0px 5pt 0px;">This report describes changes to the Fund that occurred during the reporting period.</div>
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What were the Fund costs for the last year?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin: 0px;">(based on a hypothetical $10,000 investment)</div>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a <br/>$10,000 investment</td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">BATS: Mortgage Total Return Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span></td> </tr> </table>
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<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than $1.</div> </td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table>
0
0.0000
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 0px;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">How did the Fund perform last year?</div> </div> <ul style="break-inside: avoid; padding: 0; margin: 0 0 3.5pt 0;"> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the reporting period ended March 31, 2026, the Fund returned 5.97%.</div> </li> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the same period, the Fund's benchmark, the Bloomberg U.S. Aggregate Bond Index returned 4.35% and the Bloomberg MBS Index returned 5.79%.</div> </li> </ul> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What contributed to performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">Out-of-benchmark allocations to commercial mortgage-backed securities (“CMBS”) were a leading contributor to performance, specifically single-asset, single-borrower CMBS and last cash flow CMBS. Both fixed-rate collateralized mortgage obligations (“CMOs”) and less interest rate-sensitive CMO floaters also contributed positively. Within agency mortgage-backed securities, the Fund’s active benchmark strategy, which implements relative value decisions between specified pools and to-be-announced securities, contributed positively to performance, along with coupon swap strategies.</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What detracted from performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The Fund’s active management of duration and corresponding sensitivity to changes in interest rates detracted from performance over the period, along with a tactical overweight in conventional 5.5% coupon mortgage-backed securities.</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;"><i>The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.</i></div> </div>
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0);"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 5pt;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Fund performance</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Cumulative performance: April 1, 2016 through March 31, 2026</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Initial investment of $10,000</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt;">
<img alt="Fund Performance - Growth of 10K" src="g340507chartimages_11646951.jpg" style="display: block; margin-right: auto; margin-left: auto; width: 525pt;"/> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: -10pt; font-style: normal; font-size: 7pt; padding: 0px; margin: 0px;">See “Average annual total returns” for additional information on fund performance.</div> </div> </div>
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Average annual total returns</div>
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<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; width: 100%; text-indent: -6pt; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">5 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">10 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">BATS: Mortgage Total Return Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">5.97</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">0.76</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.85</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Aggregate Bond Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.35</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">0.31</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.70</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">Bloomberg MBS Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">5.79</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">0.45</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">1.43</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table>
BATS: Mortgage Total Return Series
0.0597
0.0076
0.0185
Bloomberg U.S. Aggregate Bond Index
0.0435
0.0031
0.0170
Bloomberg MBS Index
0.0579
0.0045
0.0143
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Key Fund statistics</div>
<table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>1,496,334,940</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;">1,244</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;">931<span>%</span></td> </tr> </table>
1496334940
1244
0
9.31
Past performance is not an indication of future results.
Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.
Visit <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com</span> for more recent performance information.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What did the Fund invest in?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">(as of March 31, 2026)</div> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Portfolio composition</b></div>
<table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Investment Type</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">U.S. Government Sponsored Agency Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">92.7</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Non-Agency Mortgage-Backed Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">7.3</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Asset-Backed Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"><span class="sec-hidden" style="-sec-ix-hidden: h_98_5c6a3501_bd0f_e6f3_f7b1_63ee6941e81d;">—</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span></td> </tr> </table> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Credit quality allocation</b></div>
<table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Credit Rating<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(c)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;">Percent of Total<br/>Investments<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"><span style="white-space: nowrap;">AAA/Aaa<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(d)</sup></span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">95.6</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">AA/Aa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.3</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">A</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.1</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">BBB/Baa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.1</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; color: rgb(0, 0, 0); white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">N/R</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;">3.9</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr> </table>
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<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; color: rgb(0, 0, 0); padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; color: rgb(0, 0, 0); width: 100%; padding: 1.6pt 0 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Excludes short-term securities, short investments and options, if any.</div> </td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than 0.1%.</div> </td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(c)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</div> </td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(d)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.</div> </td> </tr> </table>
0.927
0.073
0.956
0.003
0.001
0.001
0.039
For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.
The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Material fund changes</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series M Portfolio to BATS: Mortgage Total Return Series. The Fund's Board also approved related changes to the Fund's strategies to under normal circumstances, invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in mortgage-related securities and derivatives that provide investment exposure to such securities or to one or more market risk factors associated with such securities. These changes became effective on October 1, 2025.</div>
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div>
blackrock.com/fundreports
(800) 441-7762
On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series M Portfolio to BATS: Mortgage Total Return Series.
The Fund's Board also approved related changes to the Fund's strategies to under normal circumstances, invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in mortgage-related securities and derivatives that provide investment exposure to such securities or to one or more market risk factors associated with such securities. These changes became effective on October 1, 2025.
2025-10-01
BATS: Securitized Total Return Series
BATS: Securitized Total Return Series
BATAX
This annual shareholder report contains important information about BATS: Securitized Total Return Series (the “Fund”) for the period of April 1, 2025 to March 31, 2026.
annual shareholder report
You can find additional information about the Fund at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span>. You can also request this information by contacting us at (800) 441‑7762.
blackrock.com/fundreports
(800) 441‑7762
<div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 8pt; color: rgb(0, 0, 0); margin: 5pt 0px 5pt 0px;">This report describes changes to the Fund that occurred during the reporting period.</div>
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What were the Fund costs for the last year?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin: 0px;">(based on a hypothetical $10,000 investment)</div>
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<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a <br/>$10,000 investment</td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">BATS: Securitized Total Return Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span></td> </tr> </table>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than $1.</div> </td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table>
0
0.0000
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 0px;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">How did the Fund perform last year?</div> </div> <ul style="break-inside: avoid; padding: 0; margin: 0 0 3.5pt 0;"> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the reporting period ended March 31, 2026, the Fund returned 6.34%.</div> </li> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the same period, the Fund's benchmark, the Bloomberg U.S. Universal Index returned 4.64% and the Reference Benchmark returned 5.19%.</div> </li> </ul> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What contributed to performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">All securitized asset classes contributed positively to the Fund’s performance, with contributions led by exposure to AAA-rated collateralized loan obligations. This was followed by holdings of single asset/single borrower senior tranches within commercial mortgage-backed securities and non-qualifying loans within residential mortgage-backed securities (“RMBS”). Exposure to non-performing/re-performing loans as well as legacy (pre-2008 financial crisis) loans within RMBS contributed as well. Finally, holdings of asset-backed securities with private student loans as underlying collateral proved additive. The Fund's cash position had no material impact on performance.</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The Fund held some private whole loan securities including commercial mortgage loans and consumer whole loans. These private holdings also produced positive returns.</div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What detracted from absolute performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">There were no detractors from the Fund’s performance over the reporting period.</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;"><i>The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.</i></div> </div>
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0);"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 5pt;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Fund performance</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Cumulative performance: April 1, 2016 through March 31, 2026</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Initial investment of $10,000</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt;">
<img alt="Fund Performance - Growth of 10K" src="g340507chartimages_11646816.jpg" style="display: block; margin-right: auto; margin-left: auto; width: 525pt;"/> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: -10pt; font-style: normal; font-size: 7pt; padding: 0px; margin: 0px;">See “Average annual total returns” for additional information on fund performance.</div> </div> </div>
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Average annual total returns</div>
<table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; width: 100%; text-indent: -6pt; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">5 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">10 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">BATS: Securitized Total Return Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">6.34</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.34</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.90</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Universal Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.64</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">0.65</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">2.11</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">Reference Benchmark</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">5.19</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">2.17</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">2.67</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table>
BATS: Securitized Total Return Series
0.0634
0.0434
0.0490
Bloomberg U.S. Universal Index
0.0464
0.0065
0.0211
Reference Benchmark
0.0519
0.0217
0.0267
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Key Fund statistics</div>
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<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>5,097,940,616</td> </tr>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;">2,026</td> </tr>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;">59<span>%</span></td> </tr> </table>
5097940616
2026
0
0.59
Past performance is not an indication of future results.
Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.
Visit <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com</span> for more recent performance information.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What did the Fund invest in?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">(as of March 31, 2026)</div> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Portfolio composition</b></div>
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<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Investment Type</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Non-Agency Mortgage-Backed Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">52.7</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Asset-Backed Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">46.5</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">U.S. Government Sponsored Agency Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.4</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Floating Rate Loan Interests</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.4</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Corporate Bonds</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"><span class="sec-hidden" style="-sec-ix-hidden:h_127_83815887_ae3e_6b2b_252d_f4cf47f85d13">—</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span></td> </tr> </table> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Credit quality allocation</b></div>
<table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Credit Rating<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(c)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;">Percent of Total<br/>Investments<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"><span style="white-space: nowrap;">AAA/Aaa<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(d)</sup></span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">36.6</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">AA/Aa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">3.5</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">A</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">3.1</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">BBB/Baa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">2.9</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">BB/Ba</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">1.8</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">B</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.9</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">CCC/Caa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">2.2</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">CC/Ca</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.4</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">C</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.1</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">N/R</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;">48.5</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr> </table>
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<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; color: rgb(0, 0, 0); padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; color: rgb(0, 0, 0); width: 100%; padding: 1.6pt 0 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Excludes short-term securities, short investments and options, if any.</div> </td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than 0.1%.</div> </td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(c)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</div> </td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(d)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.</div> </td> </tr> </table>
0.527
0.465
0.004
0.004
0.366
0.035
0.031
0.029
0.018
0.009
0.022
0.004
0.001
0.485
For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.
The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Material fund changes</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series A Portfolio to BATS: Securitized Total Return Series. The Fund's Board also approved related changes to the Fund's strategies to under normal circumstances, invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securitized assets and derivatives that provide investment exposure to such assets or to one or more market risk factors associated with such assets. These changes became effective on October 1, 2025.</div>
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div>
blackrock.com/fundreports
(800) 441-7762
On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series A Portfolio to BATS: Securitized Total Return Series.
The Fund's Board also approved related changes to the Fund's strategies to under normal circumstances, invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securitized assets and derivatives that provide investment exposure to such assets or to one or more market risk factors associated with such assets. These changes became effective on October 1, 2025.
2025-10-01
BATS: Short Duration Taxable Total Return Series
BATS: Short Duration Taxable Total Return Series
BRASX
This annual shareholder report contains important information about BATS: Short Duration Taxable Total Return Series (the “Fund”) for the period of April 1, 2025 to March 31, 2026.
annual shareholder report
You can find additional information about the Fund at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span>. You can also request this information by contacting us at (800) 441‑7762.
blackrock.com/fundreports
(800) 441‑7762
<div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 8pt; color: rgb(0, 0, 0); margin: 5pt 0px 5pt 0px;">This report describes changes to the Fund that occurred during the reporting period.</div>
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What were the Fund costs for the last year?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin: 0px;">(based on a hypothetical $10,000 investment)</div>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a <br/>$10,000 investment</td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">BATS: Short Duration Taxable Total Return Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span></td> </tr> </table>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than $1.</div> </td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table>
0
0.0000
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 0px;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">How did the Fund perform last year?</div> </div> <ul style="break-inside: avoid; padding: 0; margin: 0 0 3.5pt 0;"> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the reporting period ended March 31, 2026, the Fund returned 4.67%.</div> </li> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the same period, the Fund's benchmark, the Bloomberg U.S. Aggregate Bond Index returned 4.35% and the ICE BofA 1-3 Year U.S. Treasury Index returned 3.75%.</div> </li> </ul> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What contributed to performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The Fund’s duration and yield curve positioning contributed to absolute returns. (Duration is a measure of interest rate sensitivity). Allocations to U.S. investment grade corporates, asset-backed securities, commercial mortgage-backed securities, non-agency residential mortgage-backed securities (RMBS), agency RMBS, non-U.S. corporates, collateralized loan obligations, and agency debentures, all of which posted gains, further contributed to results.</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What detracted from performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The Fund used derivatives, including U.S. Treasury futures and fed funds futures to manage duration and yield curve positioning, as well as foreign exchange swaps to manage currency risk. The use of derivatives detracted from performance in the aggregate.</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;"><i>The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.</i></div> </div>
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0);"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 5pt;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Fund performance</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Cumulative performance: April 1, 2016 through March 31, 2026</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Initial investment of $10,000</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt;">
<img alt="Fund Performance - Growth of 10K" src="g340507chartimages_11647041.jpg" style="display: block; margin-right: auto; margin-left: auto; width: 525pt;"/> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: -10pt; font-style: normal; font-size: 7pt; padding: 0px; margin: 0px;">See “Average annual total returns” for additional information on fund performance.</div> </div> </div>
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Average annual total returns</div>
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<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; width: 100%; text-indent: -6pt; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">5 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">10 Years</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">BATS: Short Duration Taxable Total Return Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.67</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">2.65</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">2.97</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Aggregate Bond Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.35</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">0.31</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.70</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">ICE BofA 1-3 Year U.S. Treasury Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">3.75</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">1.86</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">1.79</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table>
BATS: Short Duration Taxable Total Return Series
0.0467
0.0265
0.0297
Bloomberg U.S. Aggregate Bond Index
0.0435
0.0031
0.0170
ICE BofA 1-3 Year U.S. Treasury Index
0.0375
0.0186
0.0179
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Key Fund statistics</div>
<table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>397,907,143</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;">749</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;">88<span>%</span></td> </tr> </table>
397907143
749
0
0.88
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); font-style: normal; font-size: 7pt; padding: 0px; margin: 0px 0px 5pt 0px;">An index that is a subset of ICE BofA US Treasury Index including all securities with a remaining term to final maturity less than 3 years. On December 1, 2023, the Fund began to compare its performance to the standard pricing time of the ICE BofA 1-3 Year U.S. Treasury Index (the “Index”). Index data prior to March 1, 2021 is for the Index’s standard pricing time of 3pm. Index data from March 1, 2021 through November 30, 2023 is for a custom 4pm pricing variant of the Index. Index returns beginning on December 1, 2023 reflect the Index’s new standard pricing time of 4pm. The change of the Index’s standard pricing time from 3pm to 4pm resulted in the discontinuation of the custom 4pm pricing variant used from March 1, 2021 through November 30, 2023.</div>
Past performance is not an indication of future results.
Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.
Visit <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com</span> for more recent performance information.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What did the Fund invest in?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">(as of March 31, 2026)</div> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Portfolio composition</b></div>
<table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Investment Type</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Corporate Bonds</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">34.8</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">U.S. Treasury Obligations</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">21.7</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Asset-Backed Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">20.4</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Non-Agency Mortgage-Backed Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">14.7</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">U.S. Government Sponsored Agency Securities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">7.9</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Foreign Government Obligations</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.4</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Foreign Agency Obligations</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;">0.1</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr> </table> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Credit quality allocation</b></div>
<table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Credit Rating<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</sup></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;">Percent of Total<br/>Investments</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"><span style="white-space: nowrap;">AAA/Aaa<sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(c)</sup></span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">56.3</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">AA/Aa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">2.5</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">A</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">14.6</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">BBB/Baa</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">18.9</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">BB/Ba</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">0.1</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">N/R</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;">7.6</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr> </table>
<table style="table-layout: auto; border-collapse: collapse; page-break-inside: avoid; width: 100%; break-inside: avoid; margin-top: 0px;">
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; color: rgb(0, 0, 0); padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; color: rgb(0, 0, 0); width: 100%; padding: 1.6pt 0 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Excludes short-term securities, short investments and options, if any.</div> </td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</div> </td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(c)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.</div> </td> </tr> </table>
0.348
0.217
0.204
0.147
0.079
0.004
0.001
0.563
0.025
0.146
0.189
0.001
0.076
For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.
The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Material fund changes</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series S Portfolio to BATS: Short Duration Taxable Total Return Series. This change became effective on October 1, 2025.</div>
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div>
blackrock.com/fundreports
(800) 441-7762
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series S Portfolio to BATS: Short Duration Taxable Total Return Series. This change became effective on October 1, 2025.</div>
2025-10-01
BATS: Short Term Municipal Income Series
BATS: Short Term Municipal Income Series
BATVX
This annual shareholder report contains important information about BATS: Short Term Municipal Income Series (the “Fund”) for the period of April 1, 2025 to March 31, 2026.
annual shareholder report
You can find additional information about the Fund at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span>. You can also request this information by contacting us at (800) 441‑7762.
blackrock.com/fundreports
(800) 441‑7762
<div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 8pt; color: rgb(0, 0, 0); margin: 5pt 0px 5pt 0px;">This report describes changes to the Fund that occurred during the reporting period.</div>
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What were the Fund costs for the last year?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin: 0px;">(based on a hypothetical $10,000 investment)</div>
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<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; font-size: 9pt; line-height: 11pt; color: rgb(0, 0, 0); font-weight: bold; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a <br/>$10,000 investment</td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">BATS: Short Term Municipal Income Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span></td> </tr> </table>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(a)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than $1.</div> </td> </tr>
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<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; color: rgb(0, 0, 0); width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;"><sup style="line-height: 0px; font-size: 6pt; vertical-align: super;">(b)</sup></div> </td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; margin-bottom: 0; line-height: 9pt; font-family: 'Arial'; font-style: normal; font-size: 7pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); width: 100%; padding: 0;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: rgb(0, 0, 0); padding: 0px; margin: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table>
0
0.0000
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 0px;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">How did the Fund perform last year?</div> </div> <ul style="break-inside: avoid; padding: 0; margin: 0 0 3.5pt 0;"> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the reporting period ended March 31, 2026, the Fund returned 2.65%.</div> </li> <li style="font-weight: 400; padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin-left: 25.5pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: rgb(0, 0, 0); margin: 0px;">For the same period, the Fund's benchmark, the Bloomberg Municipal Bond Index returned 4.29% and the SIFMA Municipal Swap Index returned 2.51%.</div> </li> </ul> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What contributed to performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The Fund maintained high levels of liquidity while providing an attractive yield primarily through its holdings of one- and seven-day variable rate demand notes (“VRDNs”). The Fund also opportunistically laddered maturities between 30 and 120 days in municipal commercial paper and select fixed-rate, tax-backed local credits, through both municipal notes and bonds. Additionally, fixed-rate bonds in the school district, utility and housing sectors added durable yield. In credit quality terms, AA-rated bonds provided the greatest return, followed by non-rated notes and then AAA-rated bonds. From a maturity perspective, return contributions were led by holdings of municipal cash securities including VRDNs, commercial paper and municipal notes, followed by bonds with maturities of one year or less and then bonds with maturities between one and two years. The Fund's cash position had no material impact on performance.</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">The Fund’s weighted average maturity (“WAM”) of 51 days remained longer than the benchmark WAM of 7 days as the Fund continued to remain opportunistic given the attractive rate environment, taking advantage of select purchases when fixed-rate yields appeared attractive relative to expected VRDN yields.</div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;">What detracted from performance?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">There were no material detractors from the Fund’s performance over the period.</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;"><i>The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.</i></div> </div>
<div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0);"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-bottom: 5pt;"> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); break-inside: avoid;"> <div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Fund performance</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Cumulative performance: May 5, 2021 through March 31, 2026</div> </div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">Initial investment of $10,000</div> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt;">
<img alt="Fund Performance - Growth of 10K" src="g340507chartimages_11647086.jpg" style="display: block; margin-right: auto; margin-left: auto; width: 525pt;"/> </div> <div style="font-weight: 400; font-family: 'arial'; font-size: 9pt; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; line-height: 9pt; text-align: justify; color: rgb(0, 0, 0); text-indent: -10pt; font-style: normal; font-size: 7pt; padding: 0px; margin: 0px;">See “Average annual total returns” for additional information on fund performance.</div> </div> </div>
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Average annual total returns</div>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; width: 100%; text-indent: -6pt; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td>
<td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">Since Fund<br/>Inception</td>
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; color: rgb(0, 0, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">BATS: Short Term Municipal Income Series</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">2.65</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">2.27</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span style="display: inline; visibility: initial; margin-left: initial;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg Municipal Bond Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">4.29</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">0.67</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; text-align: left; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">SIFMA Municipal Swap Index</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">2.51</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">2.25</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; font-family: 'Arial'; color: rgb(0, 0, 0); width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table>
BATS: Short Term Municipal Income Series
0.0265
0.0227
Bloomberg Municipal Bond Index
0.0429
0.0067
SIFMA Municipal Swap Index
0.0251
0.0225
<div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;">Key Fund statistics</div>
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<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>95,087,225</td> </tr>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;">95</td> </tr>
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<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; color: rgb(0, 0, 0); font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;">34<span>%</span></td> </tr> </table>
95087225
95
0
0.34
2021-05-05
Past performance is not an indication of future results.
Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.
Visit <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com</span> for more recent performance information.
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">What did the Fund invest in?</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; text-align: justify; color: rgb(0, 0, 0); font-size: 9pt; line-height: 11.4pt; margin: 0px;">(as of March 31, 2026)</div> <div style="font-family: 'arial'; font-weight: bold; font-size: 10pt; text-align: left; letter-spacing: normal; text-transform: none; font-kerning: none; color: rgb(0, 0, 0); background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 2pt 0px 1.5pt 0px; margin: 0px;"><b>Sector allocation</b></div>
<table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;">
<tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Sector</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; font-family: 'Arial'; line-height: 11pt; color: rgb(0, 0, 0); width: auto; text-align: left; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Housing</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">28.5</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">County/City/Special District/School District</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">26.1</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Education</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">18.0</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Utilities</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">17.0</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Health Care</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;">7.7</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr>
<tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;">
<td style="break-inside: avoid-page; page-break-inside: avoid; font-kerning: none; color: rgb(0, 0, 0); overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Transportation</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; text-align: right; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;">2.7</td>
<td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; vertical-align: bottom; font-kerning: none; color: rgb(0, 0, 0); text-align: left; white-space: nowrap; width: auto; font-family: 'Arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"><span style="visibility: hidden; margin-left: -7pt;">%</span></td> </tr> </table>
0.285
0.261
0.180
0.170
0.077
0.027
<div style="font-kerning: none; font-family: 'arial'; font-size: 10pt; font-weight: bold; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;">Material fund changes</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div> <div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series V Portfolio to BATS: Short Term Municipal Income Series. The Fund's Board also approved related changes to the Fund's strategies to under normal circumstances, invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in investments the income of which is free from federal income tax and derivatives that provide investment exposure to such securities or to one or more market risk factors associated with such securities. These changes became effective on October 1, 2025.</div>
<div style="font-weight: 400; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: rgb(0, 0, 0); margin: 0px 0px 3.5pt 0px;">This is a summary of certain changes to the Fund since March 31, 2025. For more complete information, you may review the Fund’s next prospectus, which we expect to be available approximately 120 days after March 31, 2026 at <span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;">blackrock.com/fundreports</span> or upon request by contacting us at (800) 441-7762.</div>
blackrock.com/fundreports
(800) 441-7762
On June 6, 2025, the Fund’s Board approved a change in the name of BATS: Series V Portfolio to BATS: Short Term Municipal Income Series.
The Fund's Board also approved related changes to the Fund's strategies to under normal circumstances, invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in investments the income of which is free from federal income tax and derivatives that provide investment exposure to such securities or to one or more market risk factors associated with such securities. These changes became effective on October 1, 2025.
2025-10-01
Rounds to less than $1.
Excludes short-term securities, short investments and options, if any.
For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.
The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.
Rounds to less than $1.
Rounds to less than 0.1%.
Rounds to less than 0.01%.
Excludes short-term securities, short investments and options, if any.
For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.
The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.
Rounds to less than $1.
Rounds to less than 0.01%.
Excludes short-term securities, short investments and options, if any.
Rounds to less than 0.01%.
For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.
The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.
Rounds to less than $1.
For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.
Rounds to less than $1.
Rounds to less than 0.01%.
Rounds to less than 0.1%.
Rounds to less than $1.
Rounds to less than 0.01%.
Excludes short-term securities, short investments and options, if any.
For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&P Global Ratings or Moody’s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.
The investment adviser evaluates the credit quality of unrated investments based upon certain factors including, but not limited to, credit ratings for similar investments and financial analysis of sectors, individual investments and/or issuers. Using this approach, the investment adviser has deemed unrated U.S. Government Sponsored Agency Securities and/or U.S. Treasury Obligations to be of similar credit quality as investments rated AAA/Aaa.
Rounds to less than $1.
Rounds to less than 0.1%.
Rounds to less than 0.01%.