Vanguard Short-Term Bond Index Fund Admiral Shares 

This index fund offers a low-cost, diversified approach to bond investing, providing broad exposure to U.S. investment-grade bonds with maturities from one to five years. Reflecting this goal, the fund invests about 30% of assets in corporate bonds and 70% in U.S. government bonds within that maturity range. A key risk of the fund is the fact that changes in interest rates can eventually lead to a decrease in income for the fund. Investors with a short-term savings goal who are willing to accept some price movement may wish to consider this fund.