The Thrift Savings Plan’s international (I) fund was the top performer of the program’s five core offerings.

The Thrift Savings Plan’s international (I) fund was the top performer of the program’s five core offerings. artisteer/Getty Images

All TSP portfolios posted modest gains in August

Each of the federal government’s 401(k)-style retirement savings program’s investment options gained value for the second straight month.

The federal government’s 401(k)-style retirement savings program saw each of its portfolios grow in value for the second straight month in August.

The Thrift Savings Plan’s international (I) fund was the top performer of the program’s five core offerings, finishing last month 3.15% in the black. So far this year, the I Fund has grown 12.30%.

The common stocks of the C Fund posted gains to the tune of 2.42% in August, bringing its 2024 performance to 19.50%. And the small- and mid-size businesses of the S Fund eked out a 0.25% increase last month. Since January, the S Fund has increased 9.99%.

The fixed income (F) fund also continued to inch higher, gaining 1.43% in August. So far this year, the F Fund is up 3.14%. And the government securities of the G Fund grew by their statutorily mandated rate of 0.35% last month. So far in 2024, the G Fund has increased 2.97%.

Each of the TSP’s lifecycle funds, which shift toward more conservative investments as participants get closer to retirement, similarly posted gains last month. The L Income Fund, which is designed for people who have already begun making withdrawals, increased 0.98%; L 2025, 1.10%; L 2030, 1.69%; L 2035, 1.82%; L 2040, 1.93%; L 2045, 2.04%; L 2050, 2.13%; L 2055, 2.38%; L 2060, 2.38%; L 2065, 2.38; and L 2070, 2.39%.

So far this year, the L Income Fund has gained 6.25%; L 2025, 7.16%; L 2030, 10.64%; L 2035, 11.38%; L 2040, 12.12%; L 2045, 12.75% ; L 2050, 13.38%; L 2055, 15.58%; L 2060, 15.59%; and L 2065, 15.59%.

Year-to-date figures are not yet available for the L 2070 Fund, as it just launched in July.