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9873 9180 9295 9331 8872 7617 8835 8204 8881 8760 9969 8291 9284 9311 8855 7590 8799 8175 8853 8736 9976 10000 10000 9995 9921 9993 9772 9649 9841 10207 9721 10215 9313 10080 10212 10163 10175 10102 10060 9776 9969 10351 10270 10394 10295 10000 10105 9544 10057 10143 10095 9880 9582 9551 9856 10526 10386 10813 10918 10067 9836 9883 10227 9862 9717 10009 10153 10392 10044 10321 10005 8730 9745 10199 8716 10035 10003 9864 9854 10102 9994 8786 10435 10335 9754 10397 10440 10000 10000 9734 9888 9652 10175 10210 10550 9168 9987 10404 10000 9222 8784 N-1A 0000844779 false N-CSR BlackRock Funds 2024-10-31 iShares U.S. Intermediate Credit Bond Index Fund iShares U.S. Intermediate Credit Bond Index Fund BICBX This annual shareholder report contains important information about iShares U.S. Intermediate Credit Bond Index Fund (the “Fund”) for the period of November 1, 2023 to October 31, 2024. annual shareholder report You can find additional information about the Fund at <span style="color: #000000; 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="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;" title="oef:ExpensesTextBlock"><b>What were the </b> <b>Fund</b> <b> costs for the </b> <b>last year</b> <b>?</b></div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">(based on a hypothetical $10,000 investment)</div> <table style="break-inside: avoid-page; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: center; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: center; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a<br/>$10,000 investment</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; overflow-x: hidden; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">iShares U.S. Intermediate Credit Bond Index Fund</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"></sup></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"></sup></td> </tr> </table> <table style="break-inside: avoid-page; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">​<sup style="; font-size: smaller; line-height: 0px;">(a)</sup></div> </td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than $1.</div> </td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; text-indent: 0; padding: 0 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">​<sup style="; font-size: smaller; line-height: 0px;">(b)</sup></div> </td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: 100%; padding: 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table> 0 0.0000 <div style="margin-bottom: 0px;"> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt; margin-top: 0px;"><b>How did the </b> <b>Fund</b> <b> perform </b> <b>last year</b> <b>?</b></div> </div> <ul style="break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"> <li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: #000000; margin-left: 34px;"> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;">For the reporting period ended October 31, 2024, the Fund returned 10.62%.</div> </li> <li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: #000000; margin-left: 34px;"> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;">For the same period, the Bloomberg U.S. Aggregate Bond Index returned 10.55% and the Bloomberg U.S. Intermediate Credit Bond Index returned 10.50%.</div> </li> </ul> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: #000000; margin-bottom: 5pt;">What contributed to performance?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">The U.S. bond market produced robust returns in the annual period, with price appreciation augmenting the benefit of income. The shift in U.S. Federal Reserve (“Fed”) policy was the primary reason for the rally. In late 2023, a steady decline in inflation led Fed officials to signal that interest rate cuts were likely in store in the year ahead. While mixed economic data caused the Fed to keep rates elevated through most of 2024, it eventually enacted a half-point rate cut in September, followed by another quarter-point reduction in October. Although the outlook continued to shift in reaction to incoming economic data, investors appeared confident that the Fed could remain on a path of loosening policy.</div> </div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">Corporate bonds gained an added benefit from the backdrop of positive economic growth, steady earnings results, and investors’ hearty appetite for higher-yielding assets. In this environment, corporates comfortably outpaced government issues of similar maturities.</div> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: #000000; margin-bottom: 5pt;">What detracted from performance?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">There were no material detractors from Fund performance for the reporting period.</div> </div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;"><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="break-inside: avoid;"> <div style="margin-bottom: 5pt;"> <div style="break-inside: avoid;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;" title="oef:FactorsAffectingPerfTextBlock">Fund performance</div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">Cumulative performance: May 20, 2022 through October 31, 2024</div> </div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">Initial investment of $10,000</div> </div> <div style="margin-top: 5pt; margin-bottom: 5pt;"> <img alt="Fund Performance - Growth of 10K" src="g916838chartimages_5558779.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/> </div> <div style="padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; color: #000000; margin-bottom: 0px; padding: 0px;"> See “Average annual total returns” for additional information on fund performance.</div> </div> </div> <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;" title="oef:AvgAnnlRtrTableTextBlock"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: #ffce00; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;">Average annual total returns</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-style: none; border-bottom-width: initial; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; 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; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; 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; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">iShares U.S. Intermediate Credit Bond Index Fund</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">10.62</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span>%</span></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">3.73</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Aggregate Bond Index</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">10.55</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.20</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">Bloomberg U.S. Intermediate Credit Bond Index</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">10.50</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">3.66</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table> iShares U.S. Intermediate Credit Bond Index Fund 0.1062 0.0373 Bloomberg U.S. Aggregate Bond Index 0.1055 0.0120 Bloomberg U.S. Intermediate Credit Bond Index 0.1050 0.0366 <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: #ffce00; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;">Key Fund statistics</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>3,384,082,011</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;">5,223</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr> <tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 1.6pt 6pt;">20<span>%</span></td> </tr> </table> 3384082011 5223 0 0.20 2022-05-20 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: #000000; 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="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;">What did the Fund invest in?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; color: #000000; margin-bottom: 0px;">(as of October 31, 2024)</div> <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: #ffce00; border-bottom-color: #000000;"> <td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"><strong>Portfolio composition</strong></td> </tr> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Investment Type</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments<sup style="; font-size: smaller; line-height: 0px;">(a)</sup></td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding: 1.6pt 0 0 6pt;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Corporate Bonds</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">90.5</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Foreign Agency Obligations</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Municipal Bonds</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">0.5</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Capital Trust</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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_16_517bd3c2_319e_40a7_ac9c_5f17e3a02d42;" title="Manually tagged">—</span></td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</sup></td> </tr> </table> <table style="border-collapse: collapse; break-inside: avoid-page; width: 100%; margin-top: 0px;"> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: #000000; padding: 1.6pt 6pt 0 0;">(a)</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: #000000; width: 100%; padding: 1.6pt 0 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Excludes short-term securities.</div> </td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;">(b)</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: 100%; padding: 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than 0.1%.</div> </td> </tr> </table> 0.905 0.090 0.005 iShares U.S. Intermediate Government Bond Index Fund iShares U.S. Intermediate Government Bond Index Fund BIGBX This annual shareholder report contains important information about iShares U.S. Intermediate Government Bond Index Fund (the “Fund”) for the period of November 1, 2023 to October 31, 2024. annual shareholder report You can find additional information about the Fund at <span style="color: #000000; 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="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;" title="oef:ExpensesTextBlock"><b>What were the </b> <b>Fund</b> <b> costs for the </b> <b>last year</b> <b>?</b></div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">(based on a hypothetical $10,000 investment)</div> <table style="break-inside: avoid-page; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: center; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: center; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a<br/>$10,000 investment</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; overflow-x: hidden; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">iShares U.S. Intermediate Government Bond Index Fund</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"></sup></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"></sup></td> </tr> </table> <table style="break-inside: avoid-page; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">​<sup style="; font-size: smaller; line-height: 0px;">(a)</sup></div> </td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than $1.</div> </td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; text-indent: 0; padding: 0 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">​<sup style="; font-size: smaller; line-height: 0px;">(b)</sup></div> </td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: 100%; padding: 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table> 0 0.0000 <div style="margin-bottom: 0px;"> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt; margin-top: 0px;"><b>How did the </b> <b>Fund</b> <b> perform </b> <b>last year</b> <b>?</b></div> </div> <ul style="break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"> <li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: #000000; margin-left: 34px;"> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;">For the reporting period ended October 31, 2024, the Fund returned 6.92%.</div> </li> <li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: #000000; margin-left: 34px;"> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;">For the same period, the Bloomberg U.S. Aggregate Bond Index returned 10.55% and the Bloomberg U.S. Intermediate Government Bond Index returned 6.92%.</div> </li> </ul> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: #000000; margin-bottom: 5pt;">What contributed to performance?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">The U.S. bond market produced robust returns in the annual period, with price appreciation augmenting the benefit of income. The shift in U.S. Federal Reserve (“Fed”) policy was the primary reason for the rally. In late 2023, a steady decline in inflation led Fed officials to signal that interest rate cuts were likely in store in the year ahead. While mixed economic data caused the Fed to keep rates elevated through most of 2024, it eventually enacted a half-point rate cut in September, followed by another quarter-point reduction in October. Although the outlook continued to shift in reaction to incoming economic data, investors appeared confident that the Fed could remain on a path of loosening policy.</div> </div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">Intermediate-term government bonds registered strong absolute returns and outperformed shorter-term issues. However, the category was unable to keep pace with the even larger gains for longer-term debt. The yield on the five-year note fell from 4.82% to 4.15% over the course of the period, while the 10-year yield declined from 4.88% to 4.28%. The yield on the two-year issue also declined, falling from 5.07% to 4.16%.</div> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: #000000; margin-bottom: 5pt;">What detracted from performance?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">There were no material detractors from Fund performance for the reporting period.</div> </div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;"><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="break-inside: avoid;"> <div style="margin-bottom: 5pt;"> <div style="break-inside: avoid;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;" title="oef:FactorsAffectingPerfTextBlock">Fund performance</div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">Cumulative performance: May 20, 2022 through October 31, 2024</div> </div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">Initial investment of $10,000</div> </div> <div style="margin-top: 5pt; margin-bottom: 5pt;"> <img alt="Fund Performance - Growth of 10K" src="g916838chartimages_5558723.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/> </div> <div style="padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; color: #000000; margin-bottom: 0px; padding: 0px;"> See “Average annual total returns” for additional information on fund performance.</div> </div> </div> <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;" title="oef:AvgAnnlRtrTableTextBlock"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: #ffce00; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;">Average annual total returns</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-style: none; border-bottom-width: initial; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; 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; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; 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; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">iShares U.S. Intermediate Government Bond Index Fund</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">6.92</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span>%</span></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.64</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Aggregate Bond Index</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">10.55</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.20</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">Bloomberg U.S. Intermediate Government Bond Index</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">6.92</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">1.59</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table> iShares U.S. Intermediate Government Bond Index Fund 0.0692 0.0164 Bloomberg U.S. Aggregate Bond Index 0.1055 0.0120 Bloomberg U.S. Intermediate Government Bond Index 0.0692 0.0159 <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: #ffce00; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;">Key Fund statistics</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>5,124,227,688</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;">206</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr> <tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 1.6pt 6pt;">21<span>%</span></td> </tr> </table> 5124227688 206 0 0.21 2022-05-20 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: #000000; 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="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;">What did the Fund invest in?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; color: #000000; margin-bottom: 0px;">(as of October 31, 2024)</div> <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: #ffce00; border-bottom-color: #000000;"> <td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"><strong>Portfolio composition</strong></td> </tr> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Investment Type</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments<sup style="; font-size: smaller; line-height: 0px;">(a)</sup></td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding: 1.6pt 0 0 6pt;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">U.S. Treasury Obligations</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">98.0</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">U.S. Government Sponsored Agency Securities</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">1.9</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Corporate Bonds</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-collapse: collapse; break-inside: avoid-page; width: 100%; margin-top: 0px;"> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: #000000; padding: 1.6pt 6pt 0 0;">(a)</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: #000000; width: 100%; padding: 1.6pt 0 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Excludes short-term securities.</div> </td> </tr> </table> 0.980 0.019 0.001 iShares U.S. Long Credit Bond Index Fund iShares U.S. Long Credit Bond Index Fund BLCBX This annual shareholder report contains important information about iShares U.S. Long Credit Bond Index Fund (the “Fund”) for the period of November 1, 2023 to October 31, 2024. annual shareholder report You can find additional information about the Fund at <span style="color: #000000; 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="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;" title="oef:ExpensesTextBlock"><b>What were the </b> <b>Fund</b> <b> costs for the </b> <b>last year</b> <b>?</b></div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">(based on a hypothetical $10,000 investment)</div> <table style="break-inside: avoid-page; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: center; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: center; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a<br/>$10,000 investment</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; overflow-x: hidden; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">iShares U.S. Long Credit Bond Index Fund</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"></sup></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"></sup></td> </tr> </table> <table style="break-inside: avoid-page; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">​<sup style="; font-size: smaller; line-height: 0px;">(a)</sup></div> </td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than $1.</div> </td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; text-indent: 0; padding: 0 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">​<sup style="; font-size: smaller; line-height: 0px;">(b)</sup></div> </td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: 100%; padding: 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table> 0 0.0000 <div style="margin-bottom: 0px;"> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt; margin-top: 0px;"><b>How did the </b> <b>Fund</b> <b> perform </b> <b>last year</b> <b>?</b></div> </div> <ul style="break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"> <li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: #000000; margin-left: 34px;"> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;">For the reporting period ended October 31, 2024, the Fund returned 18.83%.</div> </li> <li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: #000000; margin-left: 34px;"> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;">For the same period, the Bloomberg U.S. Aggregate Bond Index returned 10.55% and the Bloomberg U.S. Long Credit Bond Index returned 18.80%.</div> </li> </ul> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: #000000; margin-bottom: 5pt;">What contributed to performance?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">The U.S. bond market produced robust returns in the annual period, with price appreciation augmenting the benefit of income. The shift in U.S. Federal Reserve (“Fed”) policy was the primary reason for the rally. In late 2023, a steady decline in inflation led Fed officials to signal that interest rate cuts were likely in store in the year ahead. While mixed economic data caused the Fed to keep rates elevated through most of 2024, it eventually enacted a half-point rate cut in September, followed by another quarter-point reduction in October. Although the outlook continued to shift in reaction to incoming economic data, investors appeared confident that the Fed could remain on a path of loosening policy.</div> </div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">Corporate bonds gained an added benefit from the backdrop of positive economic growth, steady earnings results, and investors’ hearty appetite for higher-yielding assets. In this environment, corporates comfortably outpaced government issues of similar maturities. Long-term corporate issues performed particularly well, as their above-average interest rate sensitivity was a positive attribute at a time of falling rates.</div> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: #000000; margin-bottom: 5pt;">What detracted from performance?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">There were no material detractors from Fund performance for the reporting period.</div> </div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;"><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="break-inside: avoid;"> <div style="margin-bottom: 5pt;"> <div style="break-inside: avoid;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;" title="oef:FactorsAffectingPerfTextBlock">Fund performance</div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">Cumulative performance: May 20, 2022 through October 31, 2024</div> </div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">Initial investment of $10,000</div> </div> <div style="margin-top: 5pt; margin-bottom: 5pt;"> <img alt="Fund Performance - Growth of 10K" src="g916838chartimages_5558834.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/> </div> <div style="padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; color: #000000; margin-bottom: 0px; padding: 0px;"> See “Average annual total returns” for additional information on fund performance.</div> </div> </div> <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;" title="oef:AvgAnnlRtrTableTextBlock"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: #ffce00; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;">Average annual total returns</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-style: none; border-bottom-width: initial; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; 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; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; 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; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">iShares U.S. Long Credit Bond Index Fund</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">18.83</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span>%</span></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.77</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Aggregate Bond Index</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">10.55</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.20</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">Bloomberg U.S. Long Credit Bond Index</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">18.80</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">1.76</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table> iShares U.S. Long Credit Bond Index Fund 0.1883 0.0177 Bloomberg U.S. Aggregate Bond Index 0.1055 0.0120 Bloomberg U.S. Long Credit Bond Index 0.1880 0.0176 <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: #ffce00; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;">Key Fund statistics</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>2,499,682,304</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;">3,219</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr> <tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 1.6pt 6pt;">13<span>%</span></td> </tr> </table> 2499682304 3219 0 0.13 2022-05-20 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: #000000; 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="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;">What did the Fund invest in?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; color: #000000; margin-bottom: 0px;">(as of October 31, 2024)</div> <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: #ffce00; border-bottom-color: #000000;"> <td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"><strong>Portfolio composition</strong></td> </tr> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Investment Type</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments<sup style="; font-size: smaller; line-height: 0px;">(a)</sup></td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding: 1.6pt 0 0 6pt;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Corporate Bonds</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">90.5</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Foreign Agency Obligations</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">5.3</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Municipal Bonds</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">4.2</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Capital Trust</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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_47_4ce0d019_becb_44f5_acff_e1edd5814577;" title="Manually tagged">—</span></td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</sup></td> </tr> </table> <table style="border-collapse: collapse; break-inside: avoid-page; width: 100%; margin-top: 0px;"> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: #000000; padding: 1.6pt 6pt 0 0;">(a)</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: #000000; width: 100%; padding: 1.6pt 0 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Excludes short-term securities.</div> </td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;">(b)</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: 100%; padding: 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than 0.1%.</div> </td> </tr> </table> 0.905 0.053 0.042 iShares U.S. Long Government Bond Index Fund iShares U.S. Long Government Bond Index Fund BLGBX This annual shareholder report contains important information about iShares U.S. Long Government Bond Index Fund (the “Fund”) for the period of November 1, 2023 to October 31, 2024. annual shareholder report You can find additional information about the Fund at <span style="color: #000000; 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="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;" title="oef:ExpensesTextBlock"><b>What were the </b> <b>Fund</b> <b> costs for the </b> <b>last year</b> <b>?</b></div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">(based on a hypothetical $10,000 investment)</div> <table style="break-inside: avoid-page; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: center; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: center; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a<br/>$10,000 investment</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; overflow-x: hidden; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">iShares U.S. Long Government Bond Index Fund</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"></sup></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"></sup></td> </tr> </table> <table style="break-inside: avoid-page; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">​<sup style="; font-size: smaller; line-height: 0px;">(a)</sup></div> </td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than $1.</div> </td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; text-indent: 0; padding: 0 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">​<sup style="; font-size: smaller; line-height: 0px;">(b)</sup></div> </td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: 100%; padding: 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table> 0 0.0000 <div style="margin-bottom: 0px;"> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt; margin-top: 0px;"><b>How did the </b> <b>Fund</b> <b> perform </b> <b>last year</b> <b>?</b></div> </div> <ul style="break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"> <li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: #000000; margin-left: 34px;"> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;">For the reporting period ended October 31, 2024, the Fund returned 15.01%.</div> </li> <li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: #000000; margin-left: 34px;"> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;">For the same period, the Bloomberg U.S. Aggregate Bond Index returned 10.55% and the Bloomberg U.S. Long Government Bond Index returned 15.10%.</div> </li> </ul> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: #000000; margin-bottom: 5pt;">What contributed to performance?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">The U.S. bond market produced robust returns in the annual period, with price appreciation augmenting the benefit of income. The shift in U.S. Federal Reserve (“Fed”) policy was the primary reason for the rally. In late 2023, a steady decline in inflation led Fed officials to signal that interest rate cuts were likely in store in the year ahead. While mixed economic data caused the Fed to keep rates elevated through most of 2024, it eventually enacted a half-point rate cut in September, followed by another quarter-point reduction in October. Although the outlook continued to shift in reaction to incoming economic data, investors appeared confident that the Fed could remain on a path of loosening policy.</div> </div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">Long-term government bonds generated strong absolute returns and outperformed both intermediate- and short-term issues. The yield on the 10-year note fell from 4.88% to 4.28% over the course of the period, while the 30-year yield declined from 5.04% to 4.47%.</div> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: #000000; margin-bottom: 5pt;">What detracted from performance?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">There were no material detractors from Fund performance for the reporting period.</div> </div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;"><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="break-inside: avoid;"> <div style="margin-bottom: 5pt;"> <div style="break-inside: avoid;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;" title="oef:FactorsAffectingPerfTextBlock">Fund performance</div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">Cumulative performance: May 20, 2022 through October 31, 2024</div> </div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">Initial investment of $10,000</div> </div> <div style="margin-top: 5pt; margin-bottom: 5pt;"> <img alt="Fund Performance - Growth of 10K" src="g916838chartimages_5558778.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/> </div> <div style="padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; color: #000000; margin-bottom: 0px; padding: 0px;"> See “Average annual total returns” for additional information on fund performance.</div> </div> </div> <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;" title="oef:AvgAnnlRtrTableTextBlock"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: #ffce00; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;">Average annual total returns</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-style: none; border-bottom-width: initial; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; 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; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; 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; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">iShares U.S. Long Government Bond Index Fund</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">15.01</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span>%</span></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">(5.26</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span>)</span><span>%</span></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Aggregate Bond Index</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">10.55</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.20</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">Bloomberg U.S. Long Government Bond Index</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">15.10</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">(5.38</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"><span>)</span></td> </tr> </table> iShares U.S. Long Government Bond Index Fund 0.1501 -0.0526 Bloomberg U.S. Aggregate Bond Index 0.1055 0.0120 Bloomberg U.S. Long Government Bond Index 0.1510 -0.0538 <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: #ffce00; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;">Key Fund statistics</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>2,958,671,287</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;">94</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr> <tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 1.6pt 6pt;">12<span>%</span></td> </tr> </table> 2958671287 94 0 0.12 2022-05-20 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: #000000; 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="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;">What did the Fund invest in?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; color: #000000; margin-bottom: 0px;">(as of October 31, 2024)</div> <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: #ffce00; border-bottom-color: #000000;"> <td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"><strong>Portfolio composition</strong></td> </tr> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Investment Type</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments<sup style="; font-size: smaller; line-height: 0px;">(a)</sup></td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding: 1.6pt 0 0 6pt;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">U.S. Treasury Obligations</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">99.2</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">U.S. Government Sponsored Agency Securities</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">0.8</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-collapse: collapse; break-inside: avoid-page; width: 100%; margin-top: 0px;"> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: #000000; padding: 1.6pt 6pt 0 0;">(a)</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: #000000; width: 100%; padding: 1.6pt 0 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Excludes short-term securities.</div> </td> </tr> </table> 0.992 0.008 iShares U.S. Securitized Bond Index Fund iShares U.S. Securitized Bond Index Fund BISBX This annual shareholder report contains important information about iShares U.S. Securitized Bond Index Fund (the “Fund”) for the period of November 1, 2023 to October 31, 2024. annual shareholder report You can find additional information about the Fund at <span style="color: #000000; 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="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;" title="oef:ExpensesTextBlock"><b>What were the </b> <b>Fund</b> <b> costs for the </b> <b>last year</b> <b>?</b></div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">(based on a hypothetical $10,000 investment)</div> <table style="break-inside: avoid-page; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: left; padding: 2pt 0 2pt 0;">Fund name</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: center; padding: 2pt 0 2pt 0;">Costs of a $10,000<br/>investment</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-weight: bold; font-size: 9pt; line-height: 11pt; color: #000000; background-color: #ffce00; text-align: center; padding: 2pt 0 2pt 0;">Costs paid as a percentage of a<br/>$10,000 investment</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; overflow-x: hidden; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;">iShares U.S. Securitized Bond Index Fund</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"><span style="float: none;">$</span>0<span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(a)</span><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"></sup></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;">0.00<span>%</span><span style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;">(b)</span><sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"></sup></td> </tr> </table> <table style="break-inside: avoid-page; margin-top: 2pt; table-layout: auto; width: 100%; border-collapse: collapse;"> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">​<sup style="; font-size: smaller; line-height: 0px;">(a)</sup></div> </td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; text-indent: 0; width: 100%; padding: 1.6pt 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than $1.</div> </td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; overflow-x: hidden; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: initial; text-indent: 0; padding: 0 6pt 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">​<sup style="; font-size: smaller; line-height: 0px;">(b)</sup></div> </td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; color: #000000; width: 100%; padding: 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Rounds to less than 0.01%.</div> </td> </tr> </table> 0 0.0000 <div style="margin-bottom: 0px;"> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt; margin-top: 0px;"><b>How did the </b> <b>Fund</b> <b> perform </b> <b>last year</b> <b>?</b></div> </div> <ul style="break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"> <li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: #000000; margin-left: 34px;"> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;">For the reporting period ended October 31, 2024, the Fund returned 11.25%.</div> </li> <li style="padding-left: 4pt; font-family: 'Arial'; font-size: 8pt; line-height: 12.32pt; text-align: justify; list-style-type: disc; color: #000000; margin-left: 34px;"> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none;">For the same period, the Bloomberg U.S. Aggregate Bond Index returned 10.55% and the Bloomberg U.S. Securitized: MBS, ABS, and CMBS Index returned 11.33%.</div> </li> </ul> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: #000000; margin-bottom: 5pt;">What contributed to performance?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">The U.S. bond market produced robust returns in the annual period, with price appreciation augmenting the benefit of income. The shift in U.S. Federal Reserve (“Fed”) policy was the primary reason for the rally. In late 2023, a steady decline in inflation led Fed officials to signal that interest rate cuts were likely in store in the year ahead. While mixed economic data caused the Fed to keep rates elevated through most of 2024, it eventually enacted a half-point rate cut in September, followed by another quarter-point reduction in October. Although the outlook continued to shift in reaction to incoming economic data, investors appeared confident that the Fed could remain on a path of loosening policy.</div> </div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">Residential mortgage-backed securities, asset-backed securities, and commercial mortgage-backed securities all produced positive returns. All three categories were well supported by the backdrop of falling rates, favorable credit conditions, and investors’ appetite for yield.</div> <div style="break-inside: avoid; margin-bottom: 3.5pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: normal; font-size: 10pt; letter-spacing: normal; text-transform: none; color: #000000; margin-bottom: 5pt;">What detracted from performance?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;">There were no material detractors from Fund performance for the reporting period. The Fund’s cash position had no material impact on performance.</div> </div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; color: #000000; margin-bottom: 3.5pt;"><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="break-inside: avoid;"> <div style="margin-bottom: 5pt;"> <div style="break-inside: avoid;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;" title="oef:FactorsAffectingPerfTextBlock">Fund performance</div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">Cumulative performance: May 20, 2022 through October 31, 2024</div> </div> <div style="margin-top: 0px; margin-bottom: 0px; font-kerning: none; font-family: 'arial'; font-size: 9pt; color: #000000;">Initial investment of $10,000</div> </div> <div style="margin-top: 5pt; margin-bottom: 5pt;"> <img alt="Fund Performance - Growth of 10K" src="g916838chartimages_5558710.jpg" style="display: block; margin-left: auto; margin-right: auto; width: 525pt;"/> </div> <div style="padding-left: 10pt; margin-bottom: 7.2pt;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; color: #000000; margin-bottom: 0px; padding: 0px;"> See “Average annual total returns” for additional information on fund performance.</div> </div> </div> <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;" title="oef:AvgAnnlRtrTableTextBlock"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: #ffce00; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;">Average annual total returns</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-style: none; border-bottom-width: initial; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: 60%; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; 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; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;">1 Year</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; 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; vertical-align: bottom; font-kerning: none; text-align: left; width: auto; font-family: 'Arial'; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; white-space: nowrap; color: #000000; border-bottom-color: #000000; border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">iShares U.S. Securitized Bond Index Fund</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">11.25</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"><span>%</span></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">0.86</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"><span>%</span></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;">Bloomberg U.S. Aggregate Bond Index</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">10.55</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;">1.20</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"></td> </tr> <tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; color: #000000; overflow-x: hidden; font-family: 'Arial'; width: 100%; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;">Bloomberg U.S. Securitized: MBS, ABS, and CMBS Index</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">11.33</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"></td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-family: 'Arial'; color: #000000; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;">0.84</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; color: #000000; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"></td> </tr> </table> iShares U.S. Securitized Bond Index Fund 0.1125 0.0086 Bloomberg U.S. Aggregate Bond Index 0.1055 0.0120 Bloomberg U.S. Securitized: MBS, ABS, and CMBS Index 0.1133 0.0084 <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; background-color: #ffce00; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; width: auto; font-family: 'Arial'; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;">Key Fund statistics</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Assets</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>5,122,689,293</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Number of Portfolio Holdings</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;">1,648</td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;">Net Investment Advisory Fees</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 0 6pt;"><span style="float: none;">$</span>0</td> </tr> <tr style="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; overflow-x: hidden; font-family: 'Arial'; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;">Portfolio Turnover Rate</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; font-family: 'Arial'; color: #000000; font-size: 8pt; line-height: 10pt; width: 12%; padding: 1.6pt 6pt 1.6pt 6pt;">252<span>%</span></td> </tr> </table> 5122689293 1648 0 2.52 2022-05-20 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: #000000; 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="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-weight: bold; font-size: 10pt; color: #000000; margin-bottom: -0.18pt;">What did the Fund invest in?</div> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; color: #000000; margin-bottom: 0px;">(as of October 31, 2024)</div> <table style="break-inside: avoid-page; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: #ffce00; border-bottom-color: #000000;"> <td colspan="3" style="break-inside: avoid-page; vertical-align: bottom; white-space: nowrap; width: auto; font-family: 'Arial'; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; color: #000000; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"><strong>Portfolio composition</strong></td> </tr> <tr style="border-bottom-style: solid; border-bottom-width: 0.5pt; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; white-space: nowrap; font-weight: normal; text-align: left; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;">Investment Type</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; white-space: nowrap; padding: 1.6pt 0 0 6pt;">Percent of Total<br/>Investments<sup style="; font-size: smaller; line-height: 0px;">(a)</sup></td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; padding: 1.6pt 0 0 6pt;"></td> </tr> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">U.S. Government Sponsored Agency Securities</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">95.5</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Non-Agency Mortgage-Backed Securities</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 0 6pt;">Asset-Backed Securities</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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;">1.7</td> <td style="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-bottom-width: 0.5pt; border-bottom-style: solid; break-inside: avoid-page; height: auto; font-family: 'arial'; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: #000000;"> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; color: #000000; 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%; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;">Corporate Bonds</td> <td style="break-inside: avoid-page; vertical-align: bottom; text-align: right; font-kerning: none; 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="width: auto; break-inside: avoid-page; vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; 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="border-collapse: collapse; break-inside: avoid-page; width: 100%; margin-top: 0px;"> <tr style="border-bottom-width: initial; border-bottom-style: none; break-inside: avoid-page; height: auto; border-bottom-color: initial;"> <td style="break-inside: avoid-page; font-kerning: none; overflow-x: hidden; vertical-align: top; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; text-indent: 0; color: #000000; padding: 1.6pt 6pt 0 0;">(a)</td> <td style="break-inside: avoid-page; vertical-align: bottom; font-kerning: none; font-family: 'Arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: 0; color: #000000; width: 100%; padding: 1.6pt 0 0 0;"> <div style="margin-top: 0px; font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; color: #000000; margin-bottom: 0px; padding: 0px;">Excludes short-term securities.</div> </td> </tr> </table> 0.955 0.027 0.017 0.001 Rounds to less than $1. Excludes short-term securities. Rounds to less than 0.1%. Rounds to less than $1. Rounds to less than 0.01%. Rounds to less than 0.01%. Excludes short-term securities. Rounds to less than $1. Rounds to less than 0.01%. Excludes short-term securities. Rounds to less than 0.1%. Rounds to less than $1. Rounds to less than 0.01%. Excludes short-term securities. Rounds to less than $1. Rounds to less than 0.01%. Excludes short-term securities.