0000844779 blk:C000206968Member 2025-11-01 2026-04-30 0000844779 2025-11-01 2026-04-30 0000844779 blk:C000206968Member 2026-04-30 0000844779 blk:C000206968Member oef:InformationTechnologySectorMember 2026-04-30 0000844779 blk:C000206968Member blk:IndustrialsSectorMember 2026-04-30 0000844779 blk:C000206968Member blk:FinancialsSectorMember 2026-04-30 0000844779 blk:C000206968Member oef:MaterialsSectorMember 2026-04-30 0000844779 blk:C000206968Member oef:ConsumerStaplesSectorMember 2026-04-30 0000844779 blk:C000206968Member oef:ConsumerDiscretionarySectorMember 2026-04-30 0000844779 blk:C000206968Member us-gaap:HealthcareSectorMember 2026-04-30 0000844779 blk:C000206968Member oef:UtilitiesSectorMember 2026-04-30 0000844779 blk:C000206968Member blk:CommunicationServicesSectorMember 2026-04-30 0000844779 blk:C000206968Member us-gaap:EnergySectorMember 2026-04-30 0000844779 blk:C000206968Member us-gaap:RealEstateSectorMember 2026-04-30 0000844779 blk:ShortMinusTermSecuritiesCTIMember blk:C000206968Member 2026-04-30 0000844779 blk:C000206968Member blk:LiabilitiesinExcessofOtherAssetsCTIMember 2026-04-30 0000844779 blk:C000206968Member blk:ContemporaryAmperexTechnologyCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206968Member blk:PingAnInsuranceGroupCoofChinaLtdA0CTIMember 2026-04-30 0000844779 blk:C000206968Member blk:ChinaMerchantsBankCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206968Member blk:ZhongjiInnolightCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206968Member blk:SanyHeavyIndustryCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206968Member blk:IndustrialBankCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206968Member blk:ChinaPacificInsuranceGroupCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206968Member blk:KweichowMoutaiCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206968Member blk:MideaGroupCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206968Member blk:ZijinMiningGroupCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206969Member 2025-11-01 2026-04-30 0000844779 blk:C000206969Member 2026-04-30 0000844779 blk:C000206969Member oef:InformationTechnologySectorMember 2026-04-30 0000844779 blk:C000206969Member blk:IndustrialsSectorMember 2026-04-30 0000844779 blk:C000206969Member blk:FinancialsSectorMember 2026-04-30 0000844779 blk:C000206969Member oef:MaterialsSectorMember 2026-04-30 0000844779 blk:C000206969Member oef:ConsumerStaplesSectorMember 2026-04-30 0000844779 blk:C000206969Member oef:ConsumerDiscretionarySectorMember 2026-04-30 0000844779 blk:C000206969Member us-gaap:HealthcareSectorMember 2026-04-30 0000844779 blk:C000206969Member oef:UtilitiesSectorMember 2026-04-30 0000844779 blk:C000206969Member blk:CommunicationServicesSectorMember 2026-04-30 0000844779 blk:C000206969Member us-gaap:EnergySectorMember 2026-04-30 0000844779 blk:C000206969Member us-gaap:RealEstateSectorMember 2026-04-30 0000844779 blk:ShortMinusTermSecuritiesCTIMember blk:C000206969Member 2026-04-30 0000844779 blk:C000206969Member blk:LiabilitiesinExcessofOtherAssetsCTIMember 2026-04-30 0000844779 blk:C000206969Member blk:ContemporaryAmperexTechnologyCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206969Member blk:PingAnInsuranceGroupCoofChinaLtdA0CTIMember 2026-04-30 0000844779 blk:C000206969Member blk:ChinaMerchantsBankCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206969Member blk:ZhongjiInnolightCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206969Member blk:SanyHeavyIndustryCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206969Member blk:IndustrialBankCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206969Member blk:ChinaPacificInsuranceGroupCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206969Member blk:KweichowMoutaiCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206969Member blk:MideaGroupCoLtdA0CTIMember 2026-04-30 0000844779 blk:C000206969Member blk:ZijinMiningGroupCoLtdA0CTIMember 2026-04-30 iso4217:USD pure blk:Holding 0000844779 false N-CSRS BlackRock Funds N-1A 2026-04-30 BlackRock China A Opportunities Fund Institutional Shares CHILX Semi-Annual Shareholder Report This semi-annual shareholder report contains important information about BlackRock China A Opportunities Fund (the “Fund”) for the period of November 1, 2025 to April 30, 2026. You can find additional information about the Fund at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;">blackrock.com/fundreports</span></span>. You can also request this information by contacting us at (800) 537-4942. blackrock.com/fundreports <div style="width: 100%; height: 100%; display: grid; grid-auto-rows: minmax(6px, max-content); grid-template-columns: repeat(auto-fill, 6px);"><div style="flex-wrap: wrap; background: unset; text-underline-position: auto; text-decoration-skip-ink: auto; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; font-size: 16px; font-weight: 400; border-radius: 0px; display: flex; overflow: hidden; flex-shrink: 1; box-sizing: border-box; color: rgb(0, 0, 0); grid-area: 1 / 2 / 4 / 120; line-height: 24px; margin: 0px; text-align-last: auto; white-space-collapse: collapse; height: 100%; grid-template-columns: repeat(auto-fill, 6px); grid-auto-rows: minmax(6px, max-content);"><div style="background: unset; color: rgb(0, 0, 0); text-align: left; text-underline-position: auto; text-decoration-skip-ink: auto; font-family: Arial; font-size: 13.3333px; font-weight: 700; box-sizing: border-box; display: flex; flex-flow: column; grid-area: auto; justify-content: flex-start; line-height: 20px; margin: 0px; overflow: hidden; text-align-last: auto; white-space-collapse: preserve-breaks; width: 100%; height: 100%;"><h1 style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 700; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 700; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">What were the Fund costs for the last six months?</span></h1></div></div><div style="flex-wrap: wrap; background: unset; text-underline-position: auto; text-decoration-skip-ink: auto; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; font-size: 16px; font-weight: 400; border-radius: 0px; display: flex; overflow: hidden; flex-shrink: 1; box-sizing: border-box; color: rgb(0, 0, 0); grid-area: 4 / 2 / 7 / 120; line-height: 24px; margin: 0px; text-align-last: auto; white-space-collapse: collapse; height: 100%; grid-template-columns: repeat(auto-fill, 6px); grid-auto-rows: minmax(6px, max-content);"><div style="background: unset; color: rgb(0, 0, 0); text-align: left; text-underline-position: auto; text-decoration-skip-ink: auto; font-family: Arial; font-size: 12px; font-weight: 400; box-sizing: border-box; display: flex; flex-flow: column; grid-area: auto; justify-content: flex-start; line-height: 18px; margin: 0px; overflow: hidden; text-align-last: auto; white-space-collapse: preserve-breaks; width: 100%; height: 100%;"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">(based on a hypothetical $10,000 investment)</span></p></div></div><div style="flex-wrap: wrap; background: rgba(255, 255, 255, 0); text-underline-position: auto; text-decoration-skip-ink: auto; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; font-size: 16px; font-weight: 400; border-radius: 0px; display: flex; overflow: hidden; flex-shrink: 1; box-sizing: border-box; color: rgb(0, 0, 0); flex-grow: 1; grid-area: 7 / 2 / 16 / 121; line-height: 24px; margin: 0px; text-align-last: auto; white-space-collapse: collapse; height: 100%; grid-template-columns: repeat(auto-fill, 6px); grid-auto-rows: minmax(6px, max-content);"><div style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: hidden; text-align-last: auto; white-space-collapse: collapse; width: 100%; height: 100%;"><table style="border-collapse: collapse; table-layout: auto; width: 726px; background-color: rgba(255, 255, 255, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: table; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; white-space-collapse: collapse;"><caption style="box-sizing: border-box; color: rgba(0, 0, 0, 0); display: table-caption; flex-wrap: nowrap; font-size: 1px; font-weight: 400; grid-area: auto; line-height: 1.5px; margin: 0px; overflow: visible; text-align: -webkit-center; text-align-last: auto; white-space-collapse: collapse; height: 0px;"><span style="box-sizing: border-box; color: rgba(0, 0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 1px; font-weight: 400; grid-area: auto; line-height: 1.5px; margin: 0px; overflow: visible; text-align: -webkit-center; text-align-last: auto; white-space-collapse: collapse;">Table Summary</span></caption><thead style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-header-group; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse;"><tr style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-row; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse; height: 36.5px;"><th colspan="1" style="padding: 0px; font-family: Arial; font-weight: 700; font-size: 12px; text-align: left; vertical-align: bottom; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgb(255, 206, 0); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(336px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 18px; overflow: visible; text-align: left; text-align-last: auto;">Class name</div></th><th colspan="1" style="padding: 0px; font-family: Arial; font-weight: 700; font-size: 12px; text-align: center; vertical-align: bottom; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgb(255, 206, 0); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(168px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 18px; overflow: visible; text-align: center; text-align-last: auto;">Costs of a $10,000 investment</div></th><th colspan="1" style="padding: 0px; font-family: Arial; font-weight: 700; font-size: 12px; text-align: center; vertical-align: bottom; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgb(255, 206, 0); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(222px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 18px; overflow: visible; text-align: center; text-align-last: auto;">Costs paid as a percentage of a $10,000 investment</div></th></tr></thead><tbody style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-row-group; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse;"><tr style="background-color: rgba(255, 255, 255, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: table-row; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse; height: 18.5px;"><th colspan="1" style="padding: 0px; border-top: 1px solid rgb(0, 0, 0); font-family: Arial; font-weight: 400; font-size: 12px; text-align: left; vertical-align: middle; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgba(167, 208, 214, 0.03); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(336px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; overflow: visible; text-align: left; text-align-last: auto;">Institutional Shares </div></th><td colspan="1" style="padding: 0px; border-top: 1px solid rgb(0, 0, 0); font-family: Arial; font-weight: 400; font-size: 12px; text-align: center; vertical-align: middle; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgba(255, 255, 255, 0); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(168px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; overflow: visible; text-align: center; text-align-last: auto;">$52</div></td><td colspan="1" style="padding: 0px; border-top: 1px solid rgb(0, 0, 0); font-family: Arial; font-weight: 400; font-size: 12px; text-align: center; vertical-align: middle; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgba(255, 255, 255, 0); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(222px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; overflow: visible; text-align: center; text-align-last: auto;">0.99%<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9px; font-weight: 400; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="inset: -5px 12px 16px 0px; box-sizing: border-box; clip: rect(0px, 0px, 0px, 0px); color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 9px; font-weight: 400; grid-area: auto; line-height: 0px; margin: -1px; overflow: hidden; position: absolute; text-align: center; text-align-last: auto; white-space-collapse: collapse; width: 1px; height: 1px;">Footnote Reference</span><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9px; font-weight: 400; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9px; font-weight: 400; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">(a)</span></span></sup></div></td></tr></tbody></table></div></div><div style="flex-wrap: wrap; background: unset; text-underline-position: auto; text-decoration-skip-ink: auto; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; font-size: 16px; font-weight: 400; border-radius: 0px; display: flex; overflow: hidden; flex-shrink: 1; box-sizing: border-box; color: rgb(0, 0, 0); flex-grow: 1; grid-area: 16 / 2 / 22 / 121; line-height: 24px; margin: 0px; text-align-last: auto; white-space-collapse: collapse; height: 100%; grid-template-columns: repeat(auto-fill, 6px); grid-auto-rows: minmax(6px, max-content);"><div style="background: transparent; box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: hidden; text-align-last: auto; white-space-collapse: collapse; width: 100%; height: 100%;"><table style="border-collapse: collapse; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; width: 100%; box-sizing: border-box; color: rgb(0, 0, 0); display: table; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; white-space-collapse: collapse;"><thead style="inset: 252px 775px 805px 42px; box-sizing: border-box; clip: rect(0px, 0px, 0px, 0px); color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: -1px; overflow: hidden; position: absolute; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse; width: 1px; height: 1px;"><tr style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-row; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse; height: 26px;"><td style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-cell; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; padding: 1px; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse;">Footnote</td><td style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-cell; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; padding: 1px; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse;">Description</td></tr></thead><tbody style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-row-group; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse;"><tr style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-row; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse; height: 16px;"><td style="font-family: Arial; font-size: 9.33333px; font-weight: 400; padding: 1px 1px 1px 8px; color: rgb(0, 0, 0); text-align: right; text-underline-position: auto; text-decoration-skip-ink: auto; white-space: pre-line; line-height: 14px; vertical-align: text-top; width: 1px; box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto;"><div style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: right; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="inset: 253px 767px 804px 50px; box-sizing: border-box; clip: rect(0px, 0px, 0px, 0px); color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: -1px; overflow: hidden; position: absolute; text-align: right; text-align-last: auto; white-space-collapse: collapse; width: 1px; height: 1px;">Footnote</span><sup style="inset: 4px 0px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 7px; font-weight: 400; grid-area: auto; margin: 0px; overflow: visible; position: relative; text-align: right; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 7px; font-weight: 400; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; text-align: right; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 7px; font-weight: 400; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; text-align: right; text-align-last: auto; white-space-collapse: preserve-breaks;">(a)</span></span></sup></div></td><td style="font-family: Arial; font-size: 9.33333px; font-weight: 400; padding: 1px 1px 1px 8px; color: rgb(0, 0, 0); text-align: left; text-underline-position: auto; text-decoration-skip-ink: auto; white-space: pre-line; line-height: 14px; box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle;">Annualized.</td></tr></tbody></table></div></div></div> 52 0.0099 <h1 style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 700; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 700; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">Key Fund statistics</span></h1> 24111853 215 1.09 0.291 0.184 0.164 0.123 0.057 0.052 0.042 0.028 0.026 0.021 0.001 0.012 -0.001 0.055 0.035 0.033 0.029 0.024 0.023 0.019 0.019 0.018 0.018 BlackRock China A Opportunities Fund Institutional Shares CHILX Semi-Annual Shareholder Report BlackRock China A Opportunities Fund Class K Shares CHKLX Semi-Annual Shareholder Report This semi-annual shareholder report contains important information about BlackRock China A Opportunities Fund (the “Fund”) for the period of November 1, 2025 to April 30, 2026. You can find additional information about the Fund at <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; font-weight: 400; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 10.6667px; grid-area: auto; line-height: 16px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;">blackrock.com/fundreports</span></span>. You can also request this information by contacting us at (800) 537-4942. blackrock.com/fundreports <div style="width: 100%; height: 100%; display: grid; grid-auto-rows: minmax(6px, max-content); grid-template-columns: repeat(auto-fill, 6px);"><div style="flex-wrap: wrap; background: unset; text-underline-position: auto; text-decoration-skip-ink: auto; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; font-size: 16px; font-weight: 400; border-radius: 0px; display: flex; overflow: hidden; flex-shrink: 1; box-sizing: border-box; color: rgb(0, 0, 0); grid-area: 1 / 2 / 4 / 120; line-height: 24px; margin: 0px; text-align-last: auto; white-space-collapse: collapse; height: 100%; grid-template-columns: repeat(auto-fill, 6px); grid-auto-rows: minmax(6px, max-content);"><div style="background: unset; color: rgb(0, 0, 0); text-align: left; text-underline-position: auto; text-decoration-skip-ink: auto; font-family: Arial; font-size: 13.3333px; font-weight: 700; box-sizing: border-box; display: flex; flex-flow: column; grid-area: auto; justify-content: flex-start; line-height: 20px; margin: 0px; overflow: hidden; text-align-last: auto; white-space-collapse: preserve-breaks; width: 100%; height: 100%;"><h1 style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 700; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 700; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">What were the Fund costs for the last six months?</span></h1></div></div><div style="flex-wrap: wrap; background: unset; text-underline-position: auto; text-decoration-skip-ink: auto; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; font-size: 16px; font-weight: 400; border-radius: 0px; display: flex; overflow: hidden; flex-shrink: 1; box-sizing: border-box; color: rgb(0, 0, 0); grid-area: 4 / 2 / 7 / 120; line-height: 24px; margin: 0px; text-align-last: auto; white-space-collapse: collapse; height: 100%; grid-template-columns: repeat(auto-fill, 6px); grid-auto-rows: minmax(6px, max-content);"><div style="background: unset; color: rgb(0, 0, 0); text-align: left; text-underline-position: auto; text-decoration-skip-ink: auto; font-family: Arial; font-size: 12px; font-weight: 400; box-sizing: border-box; display: flex; flex-flow: column; grid-area: auto; justify-content: flex-start; line-height: 18px; margin: 0px; overflow: hidden; text-align-last: auto; white-space-collapse: preserve-breaks; width: 100%; height: 100%;"><p style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">(based on a hypothetical $10,000 investment)</span></p></div></div><div style="flex-wrap: wrap; background: rgba(255, 255, 255, 0); text-underline-position: auto; text-decoration-skip-ink: auto; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; font-size: 16px; font-weight: 400; border-radius: 0px; display: flex; overflow: hidden; flex-shrink: 1; box-sizing: border-box; color: rgb(0, 0, 0); flex-grow: 1; grid-area: 7 / 2 / 16 / 121; line-height: 24px; margin: 0px; text-align-last: auto; white-space-collapse: collapse; height: 100%; grid-template-columns: repeat(auto-fill, 6px); grid-auto-rows: minmax(6px, max-content);"><div style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: hidden; text-align-last: auto; white-space-collapse: collapse; width: 100%; height: 100%;"><table style="border-collapse: collapse; table-layout: auto; width: 726px; background-color: rgba(255, 255, 255, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: table; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; white-space-collapse: collapse;"><caption style="box-sizing: border-box; color: rgba(0, 0, 0, 0); display: table-caption; flex-wrap: nowrap; font-size: 1px; font-weight: 400; grid-area: auto; line-height: 1.5px; margin: 0px; overflow: visible; text-align: -webkit-center; text-align-last: auto; white-space-collapse: collapse; height: 0px;"><span style="box-sizing: border-box; color: rgba(0, 0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 1px; font-weight: 400; grid-area: auto; line-height: 1.5px; margin: 0px; overflow: visible; text-align: -webkit-center; text-align-last: auto; white-space-collapse: collapse;">Table Summary</span></caption><thead style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-header-group; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse;"><tr style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-row; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse; height: 36.5px;"><th colspan="1" style="padding: 0px; font-family: Arial; font-weight: 700; font-size: 12px; text-align: left; vertical-align: bottom; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgb(255, 206, 0); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(336px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 18px; overflow: visible; text-align: left; text-align-last: auto;">Class name</div></th><th colspan="1" style="padding: 0px; font-family: Arial; font-weight: 700; font-size: 12px; text-align: center; vertical-align: bottom; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgb(255, 206, 0); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(168px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 18px; overflow: visible; text-align: center; text-align-last: auto;">Costs of a $10,000 investment</div></th><th colspan="1" style="padding: 0px; font-family: Arial; font-weight: 700; font-size: 12px; text-align: center; vertical-align: bottom; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgb(255, 206, 0); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(222px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 18px; overflow: visible; text-align: center; text-align-last: auto;">Costs paid as a percentage of a $10,000 investment</div></th></tr></thead><tbody style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-row-group; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse;"><tr style="background-color: rgba(255, 255, 255, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: table-row; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse; height: 18.5px;"><th colspan="1" style="padding: 0px; border-top: 1px solid rgb(0, 0, 0); font-family: Arial; font-weight: 400; font-size: 12px; text-align: left; vertical-align: middle; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgba(167, 208, 214, 0.03); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(336px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; overflow: visible; text-align: left; text-align-last: auto;">Class K Shares </div></th><td colspan="1" style="padding: 0px; border-top: 1px solid rgb(0, 0, 0); font-family: Arial; font-weight: 400; font-size: 12px; text-align: center; vertical-align: middle; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgba(255, 255, 255, 0); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(168px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; overflow: visible; text-align: center; text-align-last: auto;">$50</div></td><td colspan="1" style="padding: 0px; border-top: 1px solid rgb(0, 0, 0); font-family: Arial; font-weight: 400; font-size: 12px; text-align: center; vertical-align: middle; text-decoration: unset; text-underline-position: auto; text-decoration-skip-ink: auto; font-style: normal; color: rgb(0, 0, 0); white-space: pre-wrap; line-height: 18px; background-color: rgba(255, 255, 255, 0); box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; width: calc(222px);"><div style="display: inline-block; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; white-space: pre-line; height: 100%; text-decoration: unset; box-sizing: border-box; color: rgb(0, 0, 0); flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; overflow: visible; text-align: center; text-align-last: auto;">0.94%<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9px; font-weight: 400; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="inset: -5px 12px 16px 0px; box-sizing: border-box; clip: rect(0px, 0px, 0px, 0px); color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 9px; font-weight: 400; grid-area: auto; line-height: 0px; margin: -1px; overflow: hidden; position: absolute; text-align: center; text-align-last: auto; white-space-collapse: collapse; width: 1px; height: 1px;">Footnote Reference</span><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9px; font-weight: 400; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 9px; font-weight: 400; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">(a)</span></span></sup></div></td></tr></tbody></table></div></div><div style="flex-wrap: wrap; background: unset; text-underline-position: auto; text-decoration-skip-ink: auto; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; font-size: 16px; font-weight: 400; border-radius: 0px; display: flex; overflow: hidden; flex-shrink: 1; box-sizing: border-box; color: rgb(0, 0, 0); flex-grow: 1; grid-area: 16 / 2 / 22 / 121; line-height: 24px; margin: 0px; text-align-last: auto; white-space-collapse: collapse; height: 100%; grid-template-columns: repeat(auto-fill, 6px); grid-auto-rows: minmax(6px, max-content);"><div style="background: transparent; box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: hidden; text-align-last: auto; white-space-collapse: collapse; width: 100%; height: 100%;"><table style="border-collapse: collapse; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; width: 100%; box-sizing: border-box; color: rgb(0, 0, 0); display: table; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; white-space-collapse: collapse;"><thead style="inset: 252px 775px 805px 42px; box-sizing: border-box; clip: rect(0px, 0px, 0px, 0px); color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: -1px; overflow: hidden; position: absolute; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse; width: 1px; height: 1px;"><tr style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-row; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse; height: 26px;"><td style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-cell; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; padding: 1px; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse;">Footnote</td><td style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-cell; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; padding: 1px; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse;">Description</td></tr></thead><tbody style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-row-group; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse;"><tr style="box-sizing: border-box; color: rgb(0, 0, 0); display: table-row; flex-wrap: nowrap; font-size: 16px; font-weight: 400; grid-area: auto; line-height: 24px; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle; white-space-collapse: collapse; height: 16px;"><td style="font-family: Arial; font-size: 9.33333px; font-weight: 400; padding: 1px 1px 1px 8px; color: rgb(0, 0, 0); text-align: right; text-underline-position: auto; text-decoration-skip-ink: auto; white-space: pre-line; line-height: 14px; vertical-align: text-top; width: 1px; box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto;"><div style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: 0px; overflow: visible; text-align: right; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="inset: 253px 767px 804px 50px; box-sizing: border-box; clip: rect(0px, 0px, 0px, 0px); color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 9.33333px; font-weight: 400; grid-area: auto; line-height: 14px; margin: -1px; overflow: hidden; position: absolute; text-align: right; text-align-last: auto; white-space-collapse: collapse; width: 1px; height: 1px;">Footnote</span><sup style="inset: 4px 0px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 7px; font-weight: 400; grid-area: auto; margin: 0px; overflow: visible; position: relative; text-align: right; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 7px; font-weight: 400; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; text-align: right; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 7px; font-weight: 400; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; text-align: right; text-align-last: auto; white-space-collapse: preserve-breaks;">(a)</span></span></sup></div></td><td style="font-family: Arial; font-size: 9.33333px; font-weight: 400; padding: 1px 1px 1px 8px; color: rgb(0, 0, 0); text-align: left; text-underline-position: auto; text-decoration-skip-ink: auto; white-space: pre-line; line-height: 14px; box-sizing: border-box; display: table-cell; flex-wrap: nowrap; grid-area: auto; margin: 0px; overflow: visible; text-align-last: auto; vertical-align: middle;">Annualized.</td></tr></tbody></table></div></div></div> 50 0.0094 <h1 style="box-sizing: border-box; color: rgb(0, 0, 0); display: block; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 700; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 13.3333px; font-weight: 700; grid-area: auto; line-height: 20px; margin: 0px; overflow: visible; text-align: left; text-align-last: auto; white-space-collapse: preserve-breaks;">Key Fund statistics</span></h1> 24111853 215 1.09 0.291 0.184 0.164 0.123 0.057 0.052 0.042 0.028 0.026 0.021 0.001 0.012 -0.001 0.055 0.035 0.033 0.029 0.024 0.023 0.019 0.019 0.018 0.018 BlackRock China A Opportunities Fund Class K Shares CHKLX Semi-Annual Shareholder Report Annualized. Annualized.