Find the top rated Long Government mutual funds. Compare reviews and ratings on Financial mutual funds from Morningstar, S&P, and others to help find the best Financial mutual fund for you., Government Bond Funds and ETFs invest primarily in bonds and other debt instruments issued by federal, state and local governments.The funds in this category may invest in bonds with short-, intermediate- or long-term duration, depending on the strategies, Overall Morningstar Rating for iShares U.S. Treasury Bond ETF, as of Jun 30, 2025 rated against 216 Intermediate Government Funds based on risk adjusted total return., , , .