0000230173 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20260706253Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench2025112090Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench2025112091Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20251120111Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench2025112098Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20260723273Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench2025112094Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20251120100Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20251120107Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20251120103Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20260706257Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench2025112092Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20251218133Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2026-03-31 2026-03-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2025-01-01 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member oef:AfterTaxesOnDistributionsMember 2025-01-01 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member oef:AfterTaxesOnDistributionsAndSalesMember 2025-01-01 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20251120112Member 2025-01-01 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20260723274Member 2025-01-01 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2021-01-01 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member oef:AfterTaxesOnDistributionsMember 2021-01-01 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member oef:AfterTaxesOnDistributionsAndSalesMember 2021-01-01 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20251120112Member 2021-01-01 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20260723274Member 2021-01-01 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2016-01-05 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member oef:AfterTaxesOnDistributionsMember 2016-01-05 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member oef:AfterTaxesOnDistributionsAndSalesMember 2016-01-05 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20251120112Member 2016-01-05 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:bench20260723274Member 2016-01-05 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2017-12-31 2017-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2018-12-31 2018-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2019-12-31 2019-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2020-12-31 2020-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2021-12-31 2021-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2022-12-31 2022-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2023-12-31 2023-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2024-12-31 2024-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member macquarie:C000162386Member 2025-12-31 2025-12-31 0000230173 macquarie:Djulyultrashortpro_2791Member macquarie:S000003913Member oef:RiskLoseMoneyMember 2026-03-31 2026-03-31 iso4217:USD pure 2026-03-31 false 0000230173 485BPOS 0.0135 0.0135 0.0365 0.0088 -0.0001 0.0066 0.0526 0.0532 0.0446 N-1A DELAWARE GROUP CASH RESERVE 2026-07-31 What is the Fund’s investment objective? <div>Nomura Ultrashort Fund seeks total return to the extent consistent with a relatively low volatility of principal.</div> What are the Fund’s fees and expenses? <div>The table below describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.</div> Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment) <div> <table cellpadding="0" cellspacing="0" style="width:100%;cellspacing:0;margin-left:0;border-bottom:1pt solid #000000;margin-top:10px;"> <tr style="height:1px;"> <td style="height:1px;width:86.77937915742793%"></td> <td style="height:1px;width:10.999630450849962%"></td> <td style="height:1px;width:2.219142645971914%"></td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;border-bottom:1pt solid #000000;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Class</div> </td> <td colspan="1" style="padding-bottom:2pt;border-bottom:1pt solid #000000;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Inst.</div> </td> <td colspan="1" style="padding-bottom:2pt;border-bottom:1pt solid #000000;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;"></div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Management fees................................................................................. </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">0.30%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;"></div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Distribution and service (12b-1) fees.................................................................... </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">none</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;"></div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Other expenses.................................................................................. </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">0.26%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;"></div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Total annual fund operating expenses.................................................................. </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">0.56%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;"></div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Fee waivers and expense reimbursements............................................................... </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">(0.21%)1</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;"></div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Total annual fund operating expenses after fee waivers and expense reimbursements................................ </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">0.35%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;"></div> </td> </tr> </table></div> 0.003 0 0.0026 0.0056 -0.0021 0.0035 July 30, 2027 Example <div>This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and reflects the Manager’s expense waivers and reimbursements for the 1-year contractual period and the total operating expenses without waivers for years 2 through 10. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</div> <div> <table cellspacing="0" style="width:100%;cellspacing:0;margin-left:0;border-bottom:1pt solid #000000;margin-top:10px;"> <tr style="height:1px;"> <td style="height:1px;width:89.00036954915002%"></td> <td style="height:1px;width:10.999630450849962%"></td> </tr> <tr> <td colspan="1" style="border-bottom:1pt solid #000000;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Class</div> </td> <td colspan="1" style="border-bottom:1pt solid #000000;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Inst.</div> </td> </tr> <tr> <td colspan="1" style="vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">1 year............................................................................................ </div> </td> <td colspan="1" style="vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">$36</div> </td> </tr> <tr> <td colspan="1" style="vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">3 years........................................................................................... </div> </td> <td colspan="1" style="vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">$158</div> </td> </tr> <tr> <td colspan="1" style="vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">5 years........................................................................................... </div> </td> <td colspan="1" style="vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">$292</div> </td> </tr> <tr> <td colspan="1" style="vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">10 years.......................................................................................... </div> </td> <td colspan="1" style="vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">$681</div> </td> </tr> </table></div> 36 158 292 681 Portfolio turnover <div>The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in the annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 72% of the average value of its portfolio.</div> 0.72 What are the Fund’s principal investment strategies? <div>Under normal circumstances, the Fund will invest all of its net assets, plus the amount of any borrowings for investment purposes, in investment grade fixed income securities at the time of purchase, including, but not limited to, fixed income securities issued or guaranteed by the US government, its agencies or instrumentalities, and by US and non-US corporations. Investment grade fixed income securities are securities rated BBB- or higher by Standard & Poor’s Financial Services LLC (S&P) or Baa3 or higher by Moody’s Investors Service, Inc. (Moody’s), or similarly rated by another nationally recognized statistical rating organization (NRSRO), or those that are deemed to be of comparable quality. The Fund will maintain an average effective duration of less than 18 months. Duration measures a bond’s sensitivity to interest rates by indicating the approximate change in a bond or bond fund’s price given a 1% change in interest rates.</div><div>The Manager will determine how much of the Fund’s assets to allocate among the different types of fixed income securities in which the Fund may invest based on the Manager’s evaluation of economic and market conditions and the Manager’s assessment of the returns and potential for appreciation that can be achieved from various sectors of the fixed income market.</div><div>The corporate debt obligations in which the Fund may invest include bonds, notes, debentures, and commercial paper of US companies and non-US companies. The Fund may also invest in a variety of securities that are issued or guaranteed as to the payment of principal and interest by the US government, and by various agencies or instrumentalities, which have been established or are sponsored by the US government, and securities issued by foreign governments.</div><div>Additionally, the Fund may invest in mortgage-backed securities issued or guaranteed by the US government, its agencies or instrumentalities, or government-sponsored corporations, and mortgage-backed securities issued by certain private, nongovernment entities. The Fund may also invest in securities that are backed by assets such as receivables on home equity and credit card loans, automobile, mobile home, recreational vehicle and other loans, wholesale dealer floor plans, and leases.</div><div>The Fund may invest up to 30% of its net assets in foreign securities, including up to 10% of its net assets in securities of issuers located in emerging markets.</div><div>The Fund may use a wide range of derivatives instruments, typically including options, futures contracts, options on futures contracts, forward foreign currency contracts, credit default swaps, interest rate swaps, and index swaps. The Fund will use derivatives for both hedging and nonhedging purposes. For example, the Fund may invest in: futures and options to manage duration and for defensive purposes, such as to protect gains or hedge against potential losses in the portfolio without actually selling a security, or to stay fully invested; forward foreign currency contracts to manage foreign currency exposure; interest rate swaps to neutralize the impact of interest rate changes; credit default swaps to hedge against bond defaults, to manage credit exposure, or to enhance total return; and index swaps to enhance return or to effect diversification. The Fund will not use derivatives for reasons inconsistent with its investment objective and will limit its investments in derivatives instruments to 10% of its net assets.</div> Under normal circumstances, the Fund will invest all of its net assets, plus the amount of any borrowings for investment purposes, in investment grade fixed income securities at the time of purchase, including, but not limited to, fixed income securities issued or guaranteed by the US government, its agencies or instrumentalities, and by US and non-US corporations. Under normal circumstances, the Fund will invest all of its net assets, plus the amount of any borrowings for investment purposes, in investment grade fixed income securities at the time of purchase, including, but not limited to, fixed income securities issued or guaranteed by the US government, its agencies or instrumentalities, and by US and non-US corporations. Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors. <div>Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.</div> <div>Interest rate risk — The risk that the prices of bonds and other fixed income securities will increase as interest rates fall and decrease as interest rates rise. Interest rate changes are influenced by a number of factors, such as government policy, monetary policy, inflation expectations, and the supply and demand of bonds. Bonds and other fixed income securities with longer maturities or duration generally are more sensitive to interest rate changes. A fund may be subject to a greater risk of rising interest rates when interest rates are low or inflation rates are high or rising.</div> <div>Credit risk — The risk that an issuer of a debt security, including a governmental issuer or an entity that insures a bond, may be unable to make interest payments and/or repay principal in a timely manner.</div> <div>Mortgage-backed and asset-backed securities risk — Mortgage-backed and asset-backed securities, like other fixed income securities, are subject to credit risk and interest rate risk, and may also be subject to prepayment risk and extension risk. Prepayment risk is the risk that the principal on mortgage-backed or asset-backed securities may be prepaid at any time, which will reduce the yield and market value of the securities and may cause the fund to reinvest the proceeds in lower yielding securities. Extension risk is the risk that principal on mortgage-backed or asset-backed securities will be repaid more slowly than expected, which may reduce the proceeds available for reinvestment in higher yielding securities. In addition, mortgage-backed and asset-backed securities may decline in value, become more volatile, face difficulties in valuation, or experience reduced liquidity due to changes in interest rates or general economic conditions. Certain mortgage-backed or asset-backed securities, such as collateralized mortgage obligations, real estate mortgage investment conduits, and stripped mortgage-backed securities, may be more susceptible to these risks than other mortgage-backed, asset-backed, or fixed-income securities.</div> <div>Foreign and emerging markets risk — The risk that investments in foreign securities (particularly those of issuers in emerging markets) may be adversely affected by political instability; changes in currency exchange rates; inefficient markets and higher transaction costs; foreign economic conditions; the imposition of economic or trade sanctions; or inadequate or different regulatory and accounting standards. Securities of issuers in emerging markets may be subject to greater risks than securities of issuers in more developed foreign markets because, among other things, emerging markets may have less stable political and economic environments. In addition, there often is substantially less publicly available information about issuers and such information tends to be of a lesser quality. Economic markets and structures tend to be less mature and diverse and the securities markets may also be smaller, less liquid, and subject to greater price volatility.</div> <div>Inflation risk — The risk that the return from your investments will be less than the increase in the cost of living due to inflation.</div> <div>Loans and other direct indebtedness risk — The risk that a fund will not receive payment of principal, interest, and other amounts due in connection with these investments and will depend primarily on the financial condition of the borrower and the lending institution. A fund’s ability to sell its loans or to realize their full value upon sale may also be impaired due to the lack of an active trading market, irregular trading activity, wide bid/ask spreads, contractual restrictions, and extended trade settlement periods. In addition, certain loans in which a fund invests may not be considered securities. A fund therefore may not be able to rely upon the anti-fraud provisions of the federal securities laws with respect to these investments.</div> <div>Derivatives risk — Derivatives contracts, such as futures, forward foreign currency contracts, options, and swaps, may involve additional expenses (such as the payment of premiums) and are subject to significant loss if a security, index, reference rate, or other asset or market factor to which a derivatives contract is associated, moves in an unanticipated direction. When used for hedging, the change in value of the derivatives instrument may also not correlate specifically with the currency, rate, or other risk being hedged, in which case a fund may not realize the intended benefits. Derivatives contracts are also subject to the risk that the counterparty may fail to perform its obligations under the contract due to, among other reasons, financial difficulties (such as a bankruptcy or reorganization).</div> <div>Leveraging risk — The risk that certain fund transactions, such as reverse repurchase agreements, short sales, loans of fund securities, and the use of when-issued, delayed delivery or forward commitment transactions, or derivatives instruments, may give rise to leverage, causing a fund to be more volatile than if it had not been leveraged, which may result in increased losses to the fund.</div> <div>Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance.</div> <div>Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.</div> <div>Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as banking) will decline because of changing expectations for the performance of that industry or sector.</div> <div>Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.</div> How has Nomura Ultrashort Fund performed? <div>The bar chart and table below provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund’s performance from year to year and the table shows how the Fund’s average annual total returns for the 1-year, 5-year, and lifetime periods compare with those of a broad measure of market performance and an additional index with characteristics relevant to the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. The returns reflect any expense caps in effect during these periods. The returns would be lower without the expense caps. You may obtain the Fund’s most recently available month-end performance by calling 800-523-1918 or by visiting our website at nomuraassetmanagement.com/performance.</div> The bar chart and table below provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund’s performance from year to year and the table shows how the Fund’s average annual total returns for the 1-year, 5-year, and lifetime periods compare with those of a broad measure of market performance and an additional index with characteristics relevant to the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. 800-523-1918 nomuraassetmanagement.com/performance Calendar year-by-year total return (Institutional Class) <div><img alt="image" src="pr2791img002.jpg" style="float:center; ;max-width:100%"/></div> <div>As of June 30, 2026, the Fund’s Institutional Class shares had a calendar year-to-date return of 1.83%. During the periods illustrated in this bar chart, Institutional Class’s highest quarterly return was 2.85% for the quarter ended June 30, 2020, and its lowest quarterly return was -2.53% for the quarter ended March 31, 2020.</div> As of June 30, 2026, the Fund’s Institutional Class shares had a calendar year-to-date return of 1.83%. 2026-06-30 0.0183 highest quarterly return 0.0285 2020-06-30 lowest quarterly return -0.0253 2020-03-31 Average annual total returns for periods ended December 31, 2025 <div> <table cellpadding="0" cellspacing="0" style="width:100%;cellspacing:0;margin-left:0;border-bottom:1pt solid #000000;margin-top:10px;"> <tr style="height:1px;"> <td style="height:1px;width:64.00036954915004%"></td> <td style="height:1px;width:11.999260901699925%"></td> <td style="height:1px;width:11.999260901699925%"></td> <td style="height:1px;width:11.999260901699925%"></td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;border-bottom:1pt solid #000000;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;"> </div> </td> <td colspan="1" style="padding-bottom:2pt;border-bottom:1pt solid #000000;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">1 year</div> </td> <td colspan="1" style="padding-bottom:2pt;border-bottom:1pt solid #000000;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">5 years</div> </td> <td colspan="1" style="padding-bottom:2pt;border-bottom:1pt solid #000000;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:center;text-align:center;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Lifetime (1/5/16–12/31/25)</div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Institutional Class return before taxes.......................................... </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">4.46%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">3.11%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">2.36%</div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Institutional Class return after taxes on distributions................................ </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">2.62%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">1.77%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">1.37%</div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Institutional Class return after taxes on distributions and sale of Fund shares.............. </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">2.62%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">1.80%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">1.38%</div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">Bloomberg US Aggregate Index (reflects no deduction for fees, expenses, or taxes)......... </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">7.30%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">-0.36%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">2.01%</div> </td> </tr> <tr> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">ICE BofA US 6-Month Treasury Bill Index (reflects no deduction for fees, expenses, or taxes).. </div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">4.28%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">3.22%</div> </td> <td colspan="1" style="padding-bottom:2pt;vertical-align:bottom"> <div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:0pt;margin-bottom:0;">2.32%</div> </td> </tr> </table></div> 2016-01-05 0.0446 0.0311 0.0236 0.0262 0.0177 0.0137 0.0262 0.018 0.0138 reflects no deduction for fees, expenses, or taxes 0.073 -0.0036 0.0201 0.0428 0.0322 0.0232 <div>Actual after-tax returns depend on the investor’s individual tax situation and may differ from the returns shown. After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes.</div> After-tax returns are not relevant for shares held in tax-advantaged investment vehicles such as employer-sponsored 401(k) plans and individual retirement accounts (IRAs). The after-tax returns shown are calculated using the highest individual federal marginal income tax rates in effect during the periods presented and do not reflect the impact of state and local taxes. 1The Fund’s investment manager, Delaware Management Company (Manager), has contractually agreed to waive all or a portion of its investment advisory fees and/or pay/reimburse expenses (excluding any 12b-1 fees, acquired fund fees and expenses, taxes, interest, short sale dividend and interest expenses, brokerage fees, certain insurance costs, and nonroutine expenses or costs, including, but not limited to, those relating to reorganizations, litigation, conducting shareholder meetings, and liquidations) in order to prevent total annual fund operating expenses from exceeding 0.35% of the Fund’s average daily net assets from July 31, 2026 through July 30, 2027. These waivers and reimbursements may only be terminated by agreement of the Manager and the Fund.