Each of the Thrift Savings Program's investment portfolios posting gains in January.

Each of the Thrift Savings Program's investment portfolios posting gains in January. Panuwat Dangsungnoen / Getty Images

TSP investments begin 2026 in the black

Each of the portfolios in the federal government’s 401(k)-style retirement savings program gained value in January.

The federal government’s 401(k)-style retirement savings program began 2026 on a positive note, with each of its investment portfolios posting gains in January.

The international stocks of the Thrift Savings Plan’s I Fund sported the best performance, growing 5.94% last month. And the small- and midsize businesses of the S Fund gained 2.41% in January.

The C Fund’s common stocks reported 1.45% in growth last month, while the fixed income (F) fund increased 0.20%.

And the G Fund, which is made up of government securities, grew at its statutorily mandate rate of 0.37%.

Likewise, each of the TSP’s lifecycle (L) funds, which shift toward more conservative investments as participants get closer to retirement, finished last month in the black. The L Income Fund, designed for participants who already have begun making withdrawals, gained 1.12%; L 2030, 1.94%; L 2035, 2.19%; L 2040, 2.34%; L 2045, 2.48%; L 2050, 2.62%; L 2055, 3.11%; L 2060, 3.11%; L 2065, 3.11%; L2070, 3.11%; and L 2075, 3.11%.

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