Admiral Shares for Participants | Vanguard REIT Index Fund

Fund Summary

Investment Objective

The Fund seeks to provide a high level of income and moderate long-term capital appreciation by tracking the performance of a benchmark index that measures the performance of publicly traded equity REITs.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold Admiral Shares of the Fund.

Shareholder Fees

(Fees paid directly from your investment)

Shareholder Fees	Admiral Shares for Participants Vanguard REIT Index Fund Admiral Shares
Sales Charge (Load) Imposed on Purchases	none
Purchase Fee	none
Sales Charge (Load) Imposed on Reinvested Dividends	none
Redemption Fee	none

Annual Fund Operating Expenses

(Expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	Admiral Shares for Participants Vanguard REIT Index Fund Admiral Shares
Management Fees	0.11%
12b-1 Distribution Fee	none
Other Expenses	0.01%
Total Annual Fund Operating Expenses	0.12%

Example

The following example is intended to help you compare the cost of investing in the Fund’s Admiral Shares with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you invested $10,000 in the Fund’s shares. This example assumes that the Shares provide a return of 5% each year and that total annual fund operating expenses remain as stated in the preceding table. You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	1 Year	3 Years	5 Years	10 Years
Admiral Shares for Participants | Vanguard REIT Index Fund | Admiral Shares | USD ($)	12	39	68	154

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 11% of the average value of its portfolio.

Principal Investment Strategies

The Fund employs an indexing investment approach designed to track the performance of the MSCI US REIT Index. The Index is composed of stocks of publicly traded equity real estate investment trusts (known as REITs). The Fund attempts to replicate the 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.

Principal Risks

An investment in the Fund could lose money over short or even long periods. You should expect the Fund’s share price and total return to fluctuate within a wide range. The Fund is subject to the following risks, which could affect the Fund’s performance:

• Industry concentration risk, which is the chance that the stocks of REITs will decline because of adverse developments affecting the real estate industry and real property values. Because the Fund concentrates its assets in REIT stocks, industry concentration risk is high.

• Stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund’s target index may, at times, become focused in stocks of a limited number of companies, which could cause the Fund to underperform the overall stock market.

• Interest rate risk, which is the chance that REIT stock prices overall will decline and that the cost of borrowing for REITs will increase because of rising interest rates. Interest rate risk is high for the Fund.

• Investment style risk, which is the chance that the returns from REIT stocks—which typically are small- or mid-capitalization stocks—will trail returns from the overall stock market. Historically, REIT stocks have performed quite differently from the overall market.

• Asset concentration risk, which is the chance that, because the Fund’s target index (and therefore the Fund) tends to be heavily weighted in its ten largest holdings, the Fund’s performance may be hurt disproportionately by the poor performance of relatively few stocks.

• Derivatives risk. The Fund may invest in derivatives, which may involve risks different from, and possibly greater than, those of investments directly in the underlying securities or assets.

An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Annual Total Returns

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 Admiral Shares has varied from one calendar year to another over the periods shown. The table shows how the average annual total returns of the Admiral Shares compare with those of the Fund‘s target index and a comparative index, 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.

Annual Total Returns — Vanguard REIT Index Fund Admiral Shares

During the periods shown in the bar chart, the highest return for a calendar quarter was 34.63% (quarter ended September 30, 2009), and the lowest return for a quarter was –38.15% (quarter ended December 31, 2008).

Average Annual Total Returns for Periods Ended December 31, 2015

Average Annual Total Returns - Admiral Shares for Participants - Vanguard REIT Index Fund		1 Year	5 Years	10 Years
Admiral Shares		2.39%	11.80%	7.57%
MSCI US REIT Index	[1]	2.52%	11.88%	7.35%
REIT Spliced Index	[1]	2.52%	11.88%	7.53%

[1] The year-to-date return as of the most recent calendar quarter, which ended on March 31, 2016, was 6.27%.

[1] Comparative Indexes (reflect no deduction for fees or expenses)