During 1998, the Thrift Savings Plan's C Fund, which invests in common stocks, gained more than 28 percent, according to the Federal Retirement Thrift Investment Board.
The board reported that in December, the C Fund gained 5.76 percent, following a 6.04 percent rise in November.
After gaining 0.56 percent in November, the F Fund (fixed-income bonds) gained 0.3 percent in December. The G Fund (government securities) stayed relatively stable with a return rate of 0.43 percent, up slightly from November's return of 0.42 percent. For all of 1998, the F Fund increased 8.7 percent and the G Fund 5.7 percent.
The monthly C, F and G Fund returns reflect net earnings on the changing balances invested during the month.
During an open season that runs until Jan. 31, federal employees can start contributing to a TSP account or change account contribution levels. Participants can also change the way future payroll contributions are invested in the three TSP funds. The previous open season ended July 31, 1998.
For more TSP information, see GovExec.com's Thrift Savings Plan update.