Vanguard Ultra-Short Treasury ETF (VGUS) is an exchange-traded fund in the Ultrashort Bond category. It has $1.02B in assets, an expense ratio of 0.07% and a 3.60% dividend yield. The fund manager employs an indexing investment approach designed to track the performance of the target index, which includes fixed income securities issued by the U.S. Treasury (not including inflation-protected securities, floating rate securities, and certain other security types) that have maturities up to 12 months. Under normal circumstances, it invests at least 80% of its assets, plus the amount of any borrowings for investment purposes, in the bonds that make up the target index.