Historic Volatility Measures as of 12/31/2016
|Spliced Bloomberg Barclays U.S. Aggregate Float Adjusted Index||0.99
|Bloomberg Barclays U.S. Aggregate Bond Index||—||—|
*R-squared and beta are calculated from trailing 36-month fund returns relative to the associated benchmark.
|Risks Associated with Conservative to Moderate Funds
Vanguard funds classified as moderate to conservative are subject to low-to-moderate fluctuations in share prices. In general, such funds are appropriate for investors with medium-term investment horizons (four to ten years), for those seeking an investment that emphasizes income rather than growth, and for investors who have a low tolerance for the risk of short-term price fluctuations.
|Plain Talk About Risk
The portfolio’s share price and total return will fluctuate, along with returns for the overall bond market, within a wide range, so an investor could lose money over short or even long periods. The portfolio is also subject to:
- Interest rate risk: The chance that bond prices will decline because of rising interest rates.
- Income risk: The chance that the fund’s income will decline because of falling interest rates.
- Prepayment risk: 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.
- Extension risk: The chance that during periods of rising interest rates, certain debt obligations will be paid off substantially more slowly than originally anticipated, and the value of those securities may fall. For funds that invest in mortgage-backed securities, extension risk is the chance that during periods of rising interest rates, homeowners will prepay their mortgages at slower rates.
- Credit risk: 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.
- Call risk: 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.
- Index sampling risk: The chance that the securities selected for the fund, in the aggregate, will not provide investment performance matching that of the index. Index sampling risk for the fund should be low.