The G Fund, which invests in Treasury securities and has the highest rates of participation, and the C Fund, which is tied to the performance of the S&P 500, both posted modest gains for the year.
The F Fund, which tracks a broad index of government and corporate bonds, posted the largest gain for the year at nearly 8 percent.
“A stellar performer and a consistent performer I must say if you look back over the last five or six years,” Trabucco said of the F Fund.
The I Fund, which tracks international stocks faced a sharp downturn at the end of 2011, which Trabucco said makes sense given the debt crisis in Europe.
The Lifecycle funds, which invest in a combination of the common index funds and are “tailored” to meet retirement target dates, also posted mixed gains. The L Income posted a 2.23 percent gain and the L 2020 (for federal employees looking to retire between 2015 and 2024), was up only slightly for 2011 — 0.41 percent.
The L 2030 and L 2040, with retirement targets surrounding those dates, ended in the red for 2011.