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contextRef="v_ETF_S000002843">&lt;p&gt;SHIP LOGO VANGUARD(r)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Exchange-Traded Fund Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's ETF Shares (based on NAV) has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the ETF Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's ETF Shares (based on NAV) has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the ETF Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold ETF Shares of the Fund.&lt;/p&gt;&lt;p&gt;Shareholder Fees(Fees paid directly from your investment)&lt;/p&gt;&lt;p&gt;Transaction Fee on Purchases and Sales   None through Vanguard&lt;/p&gt;&lt;p&gt; (Broker fees vary)&lt;/p&gt;&lt;p&gt;Transaction Fee on Reinvested Dividends    None through Vanguard&lt;/p&gt;&lt;p&gt; (Broker fees vary)&lt;/p&gt;&lt;p&gt;Transaction Fee on Conversion to ETF Shares    None through Vanguard&lt;/p&gt;&lt;p&gt; (Broker fees vary)&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.06%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;   1 Year 3 Years  5 Years 10 Years&lt;/p&gt;&lt;p&gt;$10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's ETF Shares (based on NAV) has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the ETF Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSE 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Institutional_S000002843">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Institutional Shares and Institutional Plus Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Institutional Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Institutional Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Institutional Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Institutional Shares or Institutional Plus Shares of the Fund.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Shareholder Fees  &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment)  &lt;/p&gt;&lt;p&gt; Institutional Shares  Institutional Plus Shares&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone None&lt;/p&gt;&lt;p&gt;Purchase Fee None None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None None&lt;/p&gt;&lt;p&gt;Redemption Fee None None&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses  &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt; Institutional Shares  Institutional Plus Shares&lt;/p&gt;&lt;p&gt;Management Expenses 0.05% 0.04%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee None None&lt;/p&gt;&lt;p&gt;Other Expenses 0.03% 0.02%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.08% 0.06%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies.  &lt;/p&gt;&lt;p&gt;In the same section, under 'Examples,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;    &lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt;Institutional Shares $8 $26 $45 $103&lt;/p&gt;&lt;p&gt;Institutional Plus Shares$6  $19 $34 $77&lt;/p&gt;&lt;p&gt;   The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Institutional Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSIN 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Participant_S000002843">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Investor Shares for Participants&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Investor Shares of the Fund.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;Shareholder Fees &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment) &lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone &lt;/p&gt;&lt;p&gt;Purchase Fee None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None&lt;/p&gt;&lt;p&gt;Redemption Fee None &lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.20%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.24%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt; $25 $77 $135 $306&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c)  2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSIP 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Participant2_S000002843">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Signal(R) Shares for Participants&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Signal Shares of the Fund.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;Shareholder Fees &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment) &lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone &lt;/p&gt;&lt;p&gt;Purchase Fee None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None&lt;/p&gt;&lt;p&gt;Redemption Fee None&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.07%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.03%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;   &lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt; $10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSSP 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Retail_S000002843">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Investor Shares and Admiral(TM) Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Investor Shares or Admiral Shares of the Fund.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Shareholder Fees  &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment)  &lt;/p&gt;&lt;p&gt;Shareholder Fees  &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment)  &lt;/p&gt;&lt;p&gt; Investor Shares Admiral Shares&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone None&lt;/p&gt;&lt;p&gt;Purchase Fee None None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None None&lt;/p&gt;&lt;p&gt;Redemption Fee None None&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses  &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt; Investor Shares Admiral Shares&lt;/p&gt;&lt;p&gt;Management Expenses 0.20% 0.08%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee None None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04% 0.02%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.24% 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies.  &lt;/p&gt;&lt;p&gt;In the same section, under 'Examples,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;     1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt;Investor Shares $25 $77 $135 $306&lt;/p&gt;&lt;p&gt;Admiral Shares $10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSR 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Signal_S000002843">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Signal(R) Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Signal Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Signal Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Signal Shares of the Fund.&lt;/p&gt;&lt;p&gt;Shareholder Fees (Fees paid directly from your investment) &lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone &lt;/p&gt;&lt;p&gt;Purchase Fee None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None&lt;/p&gt;&lt;p&gt;Redemption Fee None&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.06%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt; $10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Signal Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSSR 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
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<vanguard:SupplementTextBlock
contextRef="v_ETF_S000002844">&lt;p&gt;SHIP LOGO VANGUARD(r)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Exchange-Traded Fund Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's ETF Shares (based on NAV) has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the ETF Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's ETF Shares (based on NAV) has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the ETF Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold ETF Shares of the Fund.&lt;/p&gt;&lt;p&gt;Shareholder Fees(Fees paid directly from your investment)&lt;/p&gt;&lt;p&gt;Transaction Fee on Purchases and Sales   None through Vanguard&lt;/p&gt;&lt;p&gt; (Broker fees vary)&lt;/p&gt;&lt;p&gt;Transaction Fee on Reinvested Dividends    None through Vanguard&lt;/p&gt;&lt;p&gt; (Broker fees vary)&lt;/p&gt;&lt;p&gt;Transaction Fee on Conversion to ETF Shares    None through Vanguard&lt;/p&gt;&lt;p&gt; (Broker fees vary)&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.06%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;   1 Year 3 Years  5 Years 10 Years&lt;/p&gt;&lt;p&gt;$10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's ETF Shares (based on NAV) has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the ETF Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSE 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Institutional_S000002844">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Institutional Shares and Institutional Plus Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Institutional Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Institutional Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Institutional Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Institutional Shares or Institutional Plus Shares of the Fund.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Shareholder Fees  &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment)  &lt;/p&gt;&lt;p&gt; Institutional Shares  Institutional Plus Shares&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone None&lt;/p&gt;&lt;p&gt;Purchase Fee None None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None None&lt;/p&gt;&lt;p&gt;Redemption Fee None None&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses  &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt; Institutional Shares  Institutional Plus Shares&lt;/p&gt;&lt;p&gt;Management Expenses 0.05% 0.04%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee None None&lt;/p&gt;&lt;p&gt;Other Expenses 0.03% 0.02%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.08% 0.06%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies.  &lt;/p&gt;&lt;p&gt;In the same section, under 'Examples,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;    &lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt;Institutional Shares $8 $26 $45 $103&lt;/p&gt;&lt;p&gt;Institutional Plus Shares$6  $19 $34 $77&lt;/p&gt;&lt;p&gt;   The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Institutional Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSIN 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Participant_S000002844">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Investor Shares for Participants&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Investor Shares of the Fund.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;Shareholder Fees &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment) &lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone &lt;/p&gt;&lt;p&gt;Purchase Fee None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None&lt;/p&gt;&lt;p&gt;Redemption Fee None &lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.20%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.24%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt; $25 $77 $135 $306&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c)  2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSIP 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Participant2_S000002844">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Signal(R) Shares for Participants&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Signal Shares of the Fund.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;Shareholder Fees &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment) &lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone &lt;/p&gt;&lt;p&gt;Purchase Fee None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None&lt;/p&gt;&lt;p&gt;Redemption Fee None&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.07%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.03%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;   &lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt; $10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSSP 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Retail_S000002844">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Investor Shares and Admiral(TM) Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Investor Shares or Admiral Shares of the Fund.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Shareholder Fees  &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment)  &lt;/p&gt;&lt;p&gt;Shareholder Fees  &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment)  &lt;/p&gt;&lt;p&gt; Investor Shares Admiral Shares&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone None&lt;/p&gt;&lt;p&gt;Purchase Fee None None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None None&lt;/p&gt;&lt;p&gt;Redemption Fee None None&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses  &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt; Investor Shares Admiral Shares&lt;/p&gt;&lt;p&gt;Management Expenses 0.20% 0.08%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee None None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04% 0.02%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.24% 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies.  &lt;/p&gt;&lt;p&gt;In the same section, under 'Examples,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;     1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt;Investor Shares $25 $77 $135 $306&lt;/p&gt;&lt;p&gt;Admiral Shares $10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSR 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Signal_S000002844">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Signal(R) Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Signal Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Signal Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Signal Shares of the Fund.&lt;/p&gt;&lt;p&gt;Shareholder Fees (Fees paid directly from your investment) &lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone &lt;/p&gt;&lt;p&gt;Purchase Fee None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None&lt;/p&gt;&lt;p&gt;Redemption Fee None&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.06%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt; $10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Signal Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSSR 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
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contextRef="v_Retail_S000002845">Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
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contextRef="v_Participant_S000002845">Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
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contextRef="v_Signal_S000002845">Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
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contextRef="v_Participant2_S000002845">Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
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contextRef="v_Institutional_S000002845"
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<rr:PortfolioTurnoverRate
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contextRef="v_Participant_S000002845"
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<rr:ProspectusDate
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<rr:PortfolioTurnoverRate
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contextRef="v_Participant2_S000002845"
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<rr:ProspectusDate
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<rr:PortfolioTurnoverRate
decimals="2"
contextRef="v_Retail_S000002845"
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<rr:ProspectusDate
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<rr:PortfolioTurnoverRate
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contextRef="v_Signal_S000002845"
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<rr:ProspectusDate
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<vanguard:SupplementTextBlock
contextRef="v_ETF_S000002845">&lt;p&gt;SHIP LOGO VANGUARD(r)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Exchange-Traded Fund Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's ETF Shares (based on NAV) has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the ETF Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's ETF Shares (based on NAV) has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the ETF Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold ETF Shares of the Fund.&lt;/p&gt;&lt;p&gt;Shareholder Fees(Fees paid directly from your investment)&lt;/p&gt;&lt;p&gt;Transaction Fee on Purchases and Sales   None through Vanguard&lt;/p&gt;&lt;p&gt; (Broker fees vary)&lt;/p&gt;&lt;p&gt;Transaction Fee on Reinvested Dividends    None through Vanguard&lt;/p&gt;&lt;p&gt; (Broker fees vary)&lt;/p&gt;&lt;p&gt;Transaction Fee on Conversion to ETF Shares    None through Vanguard&lt;/p&gt;&lt;p&gt; (Broker fees vary)&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.06%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;   1 Year 3 Years  5 Years 10 Years&lt;/p&gt;&lt;p&gt;$10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's ETF Shares (based on NAV) has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the ETF Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSE 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Institutional_S000002845">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Institutional Shares and Institutional Plus Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Institutional Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Institutional Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Institutional Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Institutional Shares or Institutional Plus Shares of the Fund.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Shareholder Fees  &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment)  &lt;/p&gt;&lt;p&gt; Institutional Shares  Institutional Plus Shares&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone None&lt;/p&gt;&lt;p&gt;Purchase Fee None None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None None&lt;/p&gt;&lt;p&gt;Redemption Fee None None&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses  &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt; Institutional Shares  Institutional Plus Shares&lt;/p&gt;&lt;p&gt;Management Expenses 0.05% 0.04%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee None None&lt;/p&gt;&lt;p&gt;Other Expenses 0.03% 0.02%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.08% 0.06%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies.  &lt;/p&gt;&lt;p&gt;In the same section, under 'Examples,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;    &lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt;Institutional Shares $8 $26 $45 $103&lt;/p&gt;&lt;p&gt;Institutional Plus Shares$6  $19 $34 $77&lt;/p&gt;&lt;p&gt;   The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Institutional Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSIN 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Participant_S000002845">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Investor Shares for Participants&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Investor Shares of the Fund.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;Shareholder Fees &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment) &lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone &lt;/p&gt;&lt;p&gt;Purchase Fee None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None&lt;/p&gt;&lt;p&gt;Redemption Fee None &lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.20%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.24%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt; $25 $77 $135 $306&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c)  2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSIP 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Participant2_S000002845">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Signal(R) Shares for Participants&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Signal Shares of the Fund.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;Shareholder Fees &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment) &lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone &lt;/p&gt;&lt;p&gt;Purchase Fee None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None&lt;/p&gt;&lt;p&gt;Redemption Fee None&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.07%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.03%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;   &lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt; $10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSSP 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Retail_S000002845">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Investor Shares and Admiral(TM) Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Investor Shares or Admiral Shares of the Fund.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Shareholder Fees  &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment)  &lt;/p&gt;&lt;p&gt;Shareholder Fees  &lt;/p&gt;&lt;p&gt;(Fees paid directly from your investment)  &lt;/p&gt;&lt;p&gt; Investor Shares Admiral Shares&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone None&lt;/p&gt;&lt;p&gt;Purchase Fee None None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None None&lt;/p&gt;&lt;p&gt;Redemption Fee None None&lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses  &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt; Investor Shares Admiral Shares&lt;/p&gt;&lt;p&gt;Management Expenses 0.20% 0.08%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee None None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04% 0.02%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.24% 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies.  &lt;/p&gt;&lt;p&gt;In the same section, under 'Examples,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt;     1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt;Investor Shares $25 $77 $135 $306&lt;/p&gt;&lt;p&gt;Admiral Shares $10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Investor Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the share classes presented compare with those of a relevant market index and other comparative indexes, which have investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSR 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
<vanguard:SupplementTextBlock
contextRef="v_Signal_S000002845">&lt;p&gt;SHIP LOGO VANGUARD(R)&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Supplement to the Prospectuses and Summary Prospectuses for Signal(R) Shares&lt;/p&gt;&lt;p&gt;New Target Index&lt;/p&gt;&lt;p&gt;Effective immediately, Vanguard Large-Cap Index Fund, Vanguard Mid-Cap Index Fund, and Vanguard Small-Cap Index Fund have begun tracking new target indexes, as previously approved by the Funds' boards of trustees. The boards believe that the new indexes, listed below, are well-constructed and offer comprehensive coverage of the Funds' respective market segments. In addition, Vanguard's agreement with the new index provider may result in considerable savings to shareholders over time in the form of lower expense ratios.&lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt;Vanguard Fund Previous Target Index New Target Index&lt;/p&gt;&lt;p&gt;Large-Cap Index Fund MSCI US Prime Market 750 Index CRSP US Large Cap Index&lt;/p&gt;&lt;p&gt;Mid-Cap Index Fund MSCI US Mid Cap 450 Index CRSP US Mid Cap Index&lt;/p&gt;&lt;p&gt;Small-Cap Index Fund MSCI US Small Cap 1750 Index CRSP US Small Cap Index&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;Each new index measures the same market segment as the corresponding previous index, so the investment objectives and risks described in each Fund's current prospectus will not change. A Fund's new target index could provide different investment returns (either lower or higher) or different levels of volatility from those of the previous index.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Large-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Large Cap Index, a broadly diversified index of large U.S. companies representing approximately the top 85% of the U.S. market capitalization. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Signal Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Mid-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Mid Cap Index, a broadly diversified index of stocks of mid-size U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Signal Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Prospectus and Summary Prospectus Text Changes for Vanguard Small-Cap Index Fund&lt;/p&gt;&lt;p&gt;The paragraph and table under 'Fees and Expenses' is replaced with the following:&lt;/p&gt;&lt;p&gt;Fees and Expenses&lt;/p&gt;&lt;p&gt;The following table describes the fees and expenses you may pay if you buy and hold Signal Shares of the Fund.&lt;/p&gt;&lt;p&gt;Shareholder Fees (Fees paid directly from your investment) &lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on PurchasesNone &lt;/p&gt;&lt;p&gt;Purchase Fee None&lt;/p&gt;&lt;p&gt;Sales Charge (Load) Imposed on Reinvested Dividends None&lt;/p&gt;&lt;p&gt;Redemption Fee None&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;Annual Fund Operating Expenses &lt;/p&gt;&lt;p&gt;(Expenses that you pay each year as a percentage of the value of your investment)&lt;/p&gt;&lt;p&gt;Management Expenses 0.06%&lt;/p&gt;&lt;p&gt;12b-1 Distribution Fee   None&lt;/p&gt;&lt;p&gt;Other Expenses 0.04%&lt;/p&gt;&lt;p&gt;Total Annual Fund Operating Expenses1 0.10%&lt;/p&gt;&lt;p&gt;1 The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies. &lt;/p&gt;&lt;p&gt;In the same section, under 'Example,' the table illustrating hypothetical expenses is restated as follows:&lt;/p&gt;&lt;p&gt; 1 Year 3 Years 5 Years 10 Years&lt;/p&gt;&lt;p&gt; $10 $32 $56 $128&lt;/p&gt;&lt;p&gt;The paragraph under 'Primary Investment Strategies' is replaced with the following:&lt;/p&gt;&lt;p&gt;The Fund employs an indexing investment approach designed to track the performance of the CRSP US Small Cap Index, a broadly diversified index of stocks of small U.S. companies. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.&lt;/p&gt;&lt;p&gt;The paragraph under 'Annual Total Returns' is replaced with the following:&lt;/p&gt;&lt;p&gt;The following bar chart and table are intended to help you understand the risks of investing in the Fund. The bar chart shows how the performance of the Fund's Signal Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Signal Shares compare with those of a relevant market index, which has investment characteristics similar to those of the Fund. Keep in mind that the Fund's past performance (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447.&lt;/p&gt;&lt;p&gt;&lt;/p&gt;&lt;p&gt;The following credit line is added:&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt;Vanguard funds are not sponsored, endorsed, sold, or promoted by the University of Chicago or its Center for Research in Security Prices, and neither the University of Chicago nor its Center for Research in Security Prices makes any representation regarding the advisability of investing in the funds.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;(c) 2013 The Vanguard Group, Inc. All rights reserved. &lt;/p&gt;&lt;p&gt;Vanguard Marketing Corporation, Distributor. PS LMSSR 012013&lt;/p&gt;&lt;p&gt;&lt;/p&gt;</vanguard:SupplementTextBlock>
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xlink:label="footnote_946">The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies.</link:footnote>
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xlink:label="footnote_948">The expense information shown in the table has been restated to reflect the removal of expenses incurred directly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes development companies.</link:footnote>
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contextRef="v_S000002845_C000007797">45.</rr:ExpenseExampleNoRedemptionYear05>
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contextRef="v_S000002845_C000007797">0.0005</rr:ManagementFeesOverAssets>
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xlink:label="footnote_950">The expense information shown in the table has been restated to reflect the removal of expenses incurred indirectly by the Fund through its investment in business development companies. The Fund's target benchmark no longer includes business development companies.</link:footnote>
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contextRef="v_S000002845_C000007798">31.</rr:ExpenseExampleNoRedemptionYear03>
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contextRef="v_S000002845_C000007798">56.</rr:ExpenseExampleNoRedemptionYear05>
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contextRef="v_S000002845_C000007798">0.0006</rr:ManagementFeesOverAssets>
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