The Thrift Savings Plan’s five core funds all closed higher for the week ending Friday, August 7, 2026, with the stock funds doing the heavy lifting. The S Fund led all funds for the second straight week, while the C Fund and I Fund also posted solid gains. The G Fund posted its characteristically small weekly gain, while the F Fund added a modest gain of its own.
Core Funds
| Fund | Weekly Change | Closing Price (8/7/26) |
|---|---|---|
| G Fund | +0.09% | $20.1096 |
| F Fund | +0.61% | $20.8908 |
| C Fund | +3.59% | $124.9314 |
| S Fund | +4.75% | $119.3969 |
| I Fund | +2.37% | $65.5282 |
Lifecycle Funds
| Fund | Weekly Change | Closing Price (8/7/26) |
|---|---|---|
| L Income | +1.02% | $31.0708 |
| L 2030 | +1.86% | $63.8476 |
| L 2035 | +2.25% | $19.6898 |
| L 2040 | +2.44% | $76.0195 |
| L 2045 | +2.60% | $21.1601 |
| L 2050 | +2.76% | $47.1618 |
| L 2055 | +3.28% | $24.8691 |
| L 2060 | +3.28% | $24.8659 |
| L 2065 | +3.28% | $24.8626 |
| L 2070 | +3.28% | $14.7354 |
| L 2075 | +3.28% | $12.8714 |
What Drove the Week
Stocks outside the S&P 500 bounced back sharply after a rough July, helping the S Fund lead the five core TSP funds with a 4.75% gain. The C Fund wasn’t far behind, rising 3.59%, while international stocks pushed the I Fund up 2.37%.
One of the week’s biggest market drivers came Friday, when a weaker-than-expected U.S. employment report caused investors to scale back expectations for a near-term Federal Reserve interest-rate increase. Treasury yields fell and stocks rallied, adding to an already strong week for equities.
The gains carried through to the Lifecycle Funds. The later-dated L Funds — L 2055 through L 2075 — each gained about 3.3%, reflecting their heavier exposure to the stock funds. The more conservative L Income Fund gained 1.02%, consistent with its much larger allocation to the G and F Funds and smaller exposure to stocks.