TSP funds kept climbing in May

For the second straight month, each portfolio offered by the federal government’s 401(k)-style retirement savings program finished May in the black.

The C Fund’s common stocks sported the best performance, gaining 5.26% last month. So far this year, the C Fund has grown 11.26%. The international investments of the I Fund came in second, increasing 4.90% in value in May. Since January, the I Fund has grown 16.56%.

The S Fund, comprised of small- and mid-size businesses, finished May 4.49% in the black, bringing its 2026 performance to 13.48%. And the fixed income (F) fund grew 0.33% last month. Since January, the F Fund has grown 0.49%.

The G Fund, which is made up of government securities, increased by its statutorily mandated rate of 0.39% last month. So far this year, the G Fund has grown 1.80%.

Each of the TSP’s lifecycle funds, which shift toward more conservative investments as participants get closer to retirement, similarly gained value last month. The L Income Fund, designed for people who have already begun making withdrawals, gained 1.66%; L 2030, 2.95%; L 2035, 3.44%; L 2040, 3.71%; L 2045, 3.95%; L 2050, 4.18%; L 2055, 5.00%; L 2060, 5.00%; L 2065, 5.00%; L 2070, 5.00%; and L 2075, 5.00%.

So far this year, the L Income Fund has increased 4.93%; L 2030, 8.10%; L 2035, 9.36%; L 2040, 10.03%; L 2045, 10.61%; L 2050, 11.20%; L 2055, 13.34%; L 2060, 13.34%; L 2065, 13.34%; L 2070, 13.33%; and L 2075, 13.33%.