Vanguard Short-Term Corporate Bond ETFAs of September 30, 2011

Investment approach

• Seeks to track the performance of the Barclays Capital U.S. 1–5 YearCorporate Bond Index.

• Diversified exposure to the short-term investment-grade U.S. corporate bondmarket.

• Follows a passively managed, index sampling approach.

• Provides current income with high credit quality.

About the benchmark• The Barclays Capital U.S. 1–5 Year Corporate Bond Index measures the

investment return of U.S. dollar denominated, investment-grade, fixed rate,taxable securities issued by industrial, utility, and financial companies withmaturities between 1 and 5 years.

VCSH

Investment focus

Central tendency

Expected rangeof fund holdings

Quick facts

Benchmark Barclays Capital U.S. 1–5 YearCorporate Bond Index

Expense ratio1 0.15%

30-day yield (SEC) 2.1%

Dividend schedule Monthly

ETF total net assets $2,018 million

Fund total net assets $2,145 million

Inception date November 19, 2009

Trading information

Ticker symbol VCSH

CUSIP number 92206C409

IIV (intra-day ticker) VCSH.IV

Exchange NASDAQ

1 As reported in the most recent prospectus. A fund's current expense ratio may be lower or higher than the figure reported in the prospectus.2 Figures for periods of less than one year are cumulative returns. All other figures represent average annual returns. Fund Performance figures assume the reinvestment of

dividends and capital gains distributions; the figures are pre-tax and net of expenses. The above widely used comparative index represents unmanaged or average returns onvarious financial assets that can be compared with the fund’s total returns for the purpose of measuring relative performance.

3 As of 4 p.m., Eastern time, when the regular trading session of the New York Stock Exchange typically closes.4 Market price returns are calculated using the midpoint between the bid and offer prices at the time NAV is calculated, typically 4 p.m., Eastern time.

Performance historyTotal returns2 for period ending in September 30, 2011

VCSH (Inception 11/19/2009) QuarterYear

to date 1 yearSince

inception

Net asset value (NAV) return3 -0.35% 2.03% 1.46% 4.00%

Market price return4 -0.38 2.10 1.48 4.21

Barclays Capital U.S. 1–5 YearCorporate Bond Index

-0.33 2.32 1.83 4.42

The performance data shown represent past performance, which is not a guarantee of future results.Investment returns and principal value will fluctuate, so investors’ shares, when sold, may be worthmore or less than their original cost. Current performance may be lower or higher than the performancedata cited. For performance data current to the most recent month-end, visit our website atvanguard.com/performance.

Investors cannot invest directly in an index.

Investment Products: Not FDIC Insured • No Bank Guarantee • May Lose Value

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Expense ratio comparison1

Vanguard Short-Term Corporate Bond ETFAs of September 30, 2011

ETF attributes VanguardShort-Term

Corporate BondETF

Barclays CapitalU.S. 1–5 Year

Corporate BondIndex

Number of bonds 892 1,448

Average duration 2.8 years 2.8 years

Average maturity 3.0 years 3.0 years

Short-term reserves 0.6% —

Distribution by maturity

Under 1 Year 1.3%

1 - 3 Years 50.4

3 - 5 Years 48.1

5 - 10 Years 0.2

10 - 20 Years 0.0

20 to 30 Years 0.0

Over 30 Years 0.0

Distribution by credit quality2

U.S. Government 0.8%

Aaa 1.2

Aa 24.0

A 45.4

Baa 28.6

Less Than Baa 0.0

Distribution by issuer

Asset-Backed 0.0%

Commercial Mortgage-Backed 0.0

Finance 43.7

Foreign 0.0

Government Mortgage-Backed 0.0

Industrial 48.4

Treasury/Agency 0.8

Utilities 6.9

Other 0.2

VCSH

1 Represents the expense ratio for the Vanguard ETF as reported in most recent prospectus. There are material differences between mutual funds and ETFs. Unlike mutual funds,ETFs are priced continuously and bought and sold throughout the day in the secondary market (at a premium or discount to net asset value) with the assistance of a stockbroker,which entails paying commissions. Sources: Lipper Inc. and Vanguard, December 31, 2010.

2 Credit-quality ratings are measured on a scale that generally ranges from AAA (highest) to D (lowest). “NR” is used to classify securities for which a rating is not available. U.S.Treasury, U.S. Agency, and U.S. Agency mortgage-backed securities appear under “U.S. Government." Credit-quality ratings for each issue are obtained from Barclays Capital usingratings derived from Moody's Investors Service, Fitch Ratings, and Standard & Poor's. When ratings from all three agencies are available, the median rating is used. When ratingsare available from two of the agencies, the lower rating is used. When one rating is available, that rating is used.

Vanguard ETF Shares are not redeemable with an Applicant Fund other than in Creation Unit aggregations. Instead, investors must buy or sell Vanguard ETF Shares in the secondarymarket with the assistance of a stockbroker. In doing so, the investor may incur brokerage commissions and may pay more than net asset value when buying and receive less thannet asset value when selling.�All ETF products are subject to risk, which may result in the loss of principal. Investments in bond ETF products are subject to interest rate, credit, and inflation risk.Vanguard Short-Term Corporate Bond ETF is not sponsored, endorsed, sold, or promoted by Barclays Capital. Barclays Capital makes no representation or warranty, express orimplied, to the owners of Vanguard Short-Term Corporate Bond ETF or any member of the public regarding the advisability of investing in securities generally or in VanguardShort-Term Corporate Bond ETF particularly or the ability of the Barclays Capital Index to track general bond market performance. Barclays Capital hereby expressly disclaims allwarranties of merchantability and fitness for a particular purpose with respect to the Barclays Capital Index and any data included therein. Barclays Capital’s only relationship toVanguard and Vanguard Short-Term Corporate Bond ETF is the licensing of the Barclays Capital Index which is determined, composed, and calculated by Barclays Capital withoutregard to Vanguard or the Vanguard Short-Term Corporate Bond ETF. Barclays Capital is not responsible for and has not participated in the determination of the timing of, prices of,or quantities of Vanguard Short-Term Corporate Bond ETF to be issued.For more information about Vanguard ETF Shares, visit vanguard.com, call 866-499-8473, or contact your broker to obtain a prospectus. Investment objectives, risks,charges, expenses, and other important information are contained in the prospectus; read and consider it carefully before investing.

© 2011 The Vanguard Group, Inc. All rights reserved. U.S. Pat. No. 6,879,964 B2; 7,337,138; 7,720,749; 7,925,573. Vanguard Marketing Corporation, Distributor. FA3145_0911

0.87%

0.30%

0.15%

1-5 YrInvestmentGrade FundsAverage

VanguardShort-TermCorporateBond ETF

US BondETFsAverage