VBMPX Vanguard Total Bond Market Index Fund Institutional Plus Shares

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Vanguard average mutual fund expense ratio: 0.09%. Industry average mutual fund expense ratio: 0.50%. All averages are asset-weighted. Industry average excludes Vanguard. Sources: Vanguard and Morningstar, Inc., as of December 31, 2023.

Total returns: Short-term total return information is provided only as a service. Historical performance—particularly short-term performance—is no guarantee of future returns. Price, yield, and return on an actual investment will fluctuate, and you may have a gain or loss when you sell. Average annual returns include changes in price and reinvestments of dividends and capital gains. Since-inception returns for less than 1 year and year-to-date returns aren't annualized. Index performance is provided as a benchmark but isn't illustrative of any particular investment. You can't invest in an index.

Standardized returns: To see quarterly fee-adjusted returns, refer to the Price & Performance details.

Expense ratios: Expense ratios are displayed on Overview. For investments that are less than 1 fiscal year old, expense ratios are estimated.

Risk: All investing is subject to risk, including the possible loss of the money you invest. Funds that concentrate on a relatively narrow market sector face the risk of higher share-price volatility. Investments in stocks or bonds issued by non-U.S. companies are subject to risks including country/regional risk and currency risk.

An investment in the fund could lose money over short or long periods of time. 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, and the level of risk may vary based on market conditions:

• Interest rate risk, which is the chance that bond prices overall will decline because of rising interest rates. Interest rate risk should be moderate for the fund because it invests primarily in short- and intermediate-term bonds, whose prices are less sensitive to interest rate changes than are the prices of long-term bonds.
• Income risk, which is the chance that the fund’s income will decline because of falling interest rates. Income risk is generally high for short-term bond funds and moderate for intermediate-term bond funds, so investors should expect the fund’s monthly income to fluctuate accordingly.
• Prepayment risk, which is the chance that during periods of falling interest rates, homeowners will refinance their mortgages before their maturity dates, resulting in prepayment of mortgage-backed securities held by the fund. The fund would then lose any price appreciation above the mortgage’s principal and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the fund’s income. Such prepayments and subsequent reinvestments would also increase the fund’s portfolio turnover rate. Prepayment risk should be moderate for the fund.
• Extension risk, which is the chance that during periods of rising interest rates, certain debt securities will be paid off substantially more slowly than originally anticipated, and the value of those securities may fall. This will lengthen the duration or average life of those securities and delay a fund’s ability to reinvest proceeds at higher interest rates, making a fund more sensitive to changes in interest rates. For funds that invest in mortgage-backed securities, there is a chance that during periods of rising interest rates, homeowners will repay their mortgages at slower rates. Extension risk should be moderate for the fund.
• Call risk, which is the chance that during periods of falling interest rates, issuers of callable bonds may call (redeem) securities with higher coupon rates or interest rates before their maturity dates. The fund would then lose any price appreciation above the bond’s call price and would be forced to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the fund’s income. Such redemptions and subsequent reinvestments would also increase the fund’s portfolio turnover rate. Call risk should be low for the fund because it invests only a small portion of its assets in callable bonds.
• Credit risk, which is the chance that a bond issuer will fail to pay interest or principal in a timely manner or that negative perceptions of the issuer’s ability to make such payments will cause the price of that bond to decline. Credit risk should be low for the fund because it purchases only bonds that are of investment-grade quality.
• Index sampling risk, which is the chance that the securities selected for the fund, in the aggregate, will not provide investment performance matching that of the fund’s target index. Index sampling risk for the fund is expected to be low.
• Liquidity risk, which is the chance that the fund may not be able to sell a security in a timely manner at a desired price.