By admin 
Nearly all of the portfolios in the federal government’s 401(k)-style retirement savings program lost value last month, as the broader investment market encountered broad volatility.
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The small- and mid-size businesses in the Thrift Savings Plan’s S Fund saw the worst decline, falling 3.86% in September. Since January, the S Fund is up 11.62%. The C Fund’s common stocks nearly broke even, finishing the month just 0.35% in the red. So far this year, the C Fund has grown 12.73%.
The fixed income (F) fund fell 2.59%, bringing its 2026 performance to 2.75% in the negative. And the international investments of the I Fund dropped 2.30% in September, bringing its gains since January down to 16.45%.
The only TSP fund to post gains was the government securities of the G Fund, which grew at a statutorily mandated rate of 0.40%. So far this year, the G Fund has grown 3.41%.
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Each of the TSP’s lifecycle funds, which shift toward more conservative investments as participants get closer to retirement, similarly lost ground last month. The L Income Fund, designed for those who have already begun making withdrawals, fell 0.28%; L 2030, 0.78%; L 2035, 1.02%; L 2040, 1.15%; L 2045, 1.25%; L 2050, 1.34%; L 2055, 1.48%; L 2060, 1.48%; L 2065, 1.48%; L 2070, 1.49%; and L 2075, 1.49%.
Since January, the L Income Fund has grown 6.04%; L 2030, 8.92%; L 2035, 10.02%; L 2040, 10.59%; L 2045, 11.09%; L 2050, 11.62%; L 2055, 13.86%; L 2060, 13.86%; L 2065, 13.85%; L 2070, 13.85%; and L 2075, 13.85%.
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