Vanguard Intermediate-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 five to ten years. Reflecting this goal, the fund invests about 50% of assets in corporate bonds and 50% in U.S. government bonds within that maturity range. Risks of the fund include the fact that changes in interest rates, both up and down, can affect the fund by resulting in lower bond prices or an eventual decrease in income for the fund. Investors looking to add a diversified bond fund to their portfolio may wish to consider this fund.