Vanguard Long-Term Bond Fund (BLV) is an exchange-traded fund in the Long Term Bond category. It has $8.67B in assets, an expense ratio of 0.03% and a 4.76% dividend yield. This index includes all medium and larger issues of U.S. government, investment-grade corporate, and investment-grade international dollar-denominated bonds that have maturities of greater than 10 years and are publicly issued. All of the fund's investments will be selected through the sampling process, and at least 80% of the fund's assets will be invested in bonds held in the index.