Sep 9, 2010 – Oct 2, 2026, TSP-C for the C Fund, VOO for VOO, VOO sets the start date
Growth of $10,000
Loading the growth chart…
Key metrics
| Return | C Fund | VOO |
|---|---|---|
| Final balance | $93,887 | $92,954 |
| Total return | +838.87% | +829.54% |
| CAGR | +14.96% | +14.89% |
| Calendar years | C Fund | VOO |
|---|---|---|
| Best year | +32.45% | +32.39% |
| Worst year | −18.13% | −18.17% |
| Positive years | 13 of 15 | 13 of 15 |
| Risk | C Fund | VOO |
|---|---|---|
| Max drawdown | −33.83% | −33.99% |
| Longest drawdown | 1.9 years | 1.9 years |
| Volatility (annualized) | 17.00% | 16.95% |
| Risk-adjusted | C Fund | VOO |
|---|---|---|
| Sharpe ratio | 0.91 | 0.91 |
| Sortino ratio | 1.28 | 1.28 |
| Calmar ratio | 0.44 | 0.44 |
Trailing returns
| Period | C Fund | VOO | C Fund − VOO |
|---|---|---|---|
| YTD | +13.79% | +13.80% | −0.01% |
| 1Y | +16.34% | +16.33% | +0.01% |
| 3Y | +23.23% | +23.24% | −0.01% |
| 5Y | +13.71% | +13.72% | −0.01% |
| 10Y | +15.41% | +15.41% | 0.00% |
| 15Y | +15.75% | +15.67% | +0.09% |
Rolling returns
| Period | C Fund median | VOO median | More often ahead |
|---|---|---|---|
| 1Y | +16.16% | +16.07% | C Fund 65% |
| 3Y | +13.56% | +13.53% | C Fund 64% |
| 5Y | +13.77% | +13.61% | C Fund 61% |
| 10Y | +13.59% | +13.52% | C Fund 93% |
Worst drawdowns · C Fund
| Decline | Peak | Bottom | Recovered | Length |
|---|---|---|---|---|
| −33.8% | Feb 2020 | Mar 2020 | Aug 2020 | 6 months |
| −24.5% | Jan 2022 | Oct 2022 | Dec 2023 | 1.9 years |
| −19.4% | Sep 2018 | Dec 2018 | Apr 2019 | 7 months |
| −18.8% | Feb 2025 | Apr 2025 | Jun 2025 | 4 months |
| −18.7% | Apr 2011 | Oct 2011 | Feb 2012 | 9 months |
| Decline | Peak | Bottom | Recovered | Length |
|---|---|---|---|---|
| −34.0% | Feb 2020 | Mar 2020 | Aug 2020 | 6 months |
| −24.5% | Jan 2022 | Oct 2022 | Dec 2023 | 1.9 years |
| −19.5% | Sep 2018 | Dec 2018 | Apr 2019 | 7 months |
| −18.8% | Apr 2011 | Oct 2011 | Feb 2012 | 9 months |
| −18.7% | Feb 2025 | Apr 2025 | Jun 2025 | 4 months |
Annual returns
| Year | C Fund | VOO | C Fund − VOO |
|---|---|---|---|
| 2017 | +21.82% | +21.77% | +0.05% |
| 2018 | −4.41% | −4.50% | +0.09% |
| 2019 | +31.45% | +31.37% | +0.09% |
| 2020 | +18.31% | +18.32% | −0.02% |
| 2021 | +28.68% | +28.79% | −0.12% |
| 2022 | −18.13% | −18.17% | +0.05% |
| 2023 | +26.25% | +26.32% | −0.08% |
| 2024 | +24.96% | +24.98% | −0.01% |
| 2025 | +17.85% | +17.82% | +0.02% |
| 2026to Oct 2 | +13.79% | +13.80% | −0.01% |
About C Fund vs VOO
Both track the S&P 500. The C Fund is only available inside the Thrift Savings Plan, the retirement plan for federal employees and the military. VOO is a Vanguard ETF that anyone can buy.
The C Fund returned 15.0% a year from Sep 2010 to Oct 2026, against 14.9% for VOO. Both fell furthest in 2020, the C Fund by 33.8% and VOO by 34.0%. The C Fund beat VOO in 10 of 15 full years and in 93% of rolling 10-year periods.
Uses daily closing prices with dividends reinvested. Fund fees are included, but not taxes or trading costs. The comparison starts on Sep 9, 2010, when VOO's prices begin.