Vanguard GNMA (ticker: VFIIX) currently has an effective maturity of six years. Over the past 12 months, according to Morningstar, the fund has provided a yield of 5.96 percent. This fund requires a $3,000 minimum initial investment. It has done better than 90 percent of its competitors in time periods from three to 15 years.
American Century Ginnie Mae (ticker: BGNMX, trailing yield 5.55 percent), Fidelity Ginnie Mae (ticker: FGMNX, trailing yield 5.37 percent) and T. Rowe Price GNMA (ticker: PRGMX, trailing yield 5.23 percent) also have strong top-quartile records.
Adjustable-rate-mortgage funds
These funds also invest in government-backed mortgage securities. They also limit their investments to pools of adjustable-rate mortgages.
That means they should be less vulnerable to rising interest rates. Unfortunately, the minimum investment in many of these funds is relatively high (try $200,000).
Also, there are fewer of them, their track records are shorter, and they tend to have lower yields.
That said, Monterey PIA Short Government (ticker: MNTSX) has a five-star rating from Morningstar, requires only a $1,000 investment and has provided a trailing yield of 3.83 percent. Asset Management Adjustable Rate Fund (ticker: ASARX) requires a $10,000 minimum investment and has had a trailing yield of 3.81 percent.
Goldman Sachs Adjustable Rate Government Fund institutional shares (ticker: GSARX) require a minimum investment of $50,000 and have provided a trailing yield of 4.65 percent. One Group Ultra Short Term Fund (ticker: HLGFX) looks for a minimum investment of $200,000 and has provided a trailing yield of 4.05 percent.