Compare/Updated Oct 26, 2026, refreshed every trading day
FSPGX vs FXAIX
Fidelity Large Cap Growth Index Fund against Fidelity 500 Index Fund: 4 years of returns, risk and today’s technical read, from Kavout’s own data.
FSPGX did better over the 1,000-trading-day period: $1,000 invested on October 28, 2022 grew to $2,181, a 118.1% return, versus $2,023 and 102.3% for FXAIX. However, FXAIX delivered the stronger recent results, including 13.8% over one year and 11.5% year to date, compared with 2.2% and 1.5% for FSPGX. FSPGX was riskier, with 17.9% volatility versus 12.6% for FXAIX and a deeper worst drawdown of 23.3% versus 19.0%. Their daily moves were highly correlated at 0.957, but FSPGX moved 1.24% for every 1% move in FXAIX. The result matters because FSPGX provided superior long-term growth but with greater sensitivity and downside risk, while FXAIX offered steadier recent performance and lower risk.
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Head to head
Which has returned more, FSPGX or FXAIX?
FSPGX beat FXAIX in 27 of the last 48 months; FXAIX won the other 21. The typical monthly gap was 1.54 points.
Total return by period
Which is riskier?
FSPGX: Dec 16, 2024 to Apr 8, 2025; FXAIX: Feb 19, 2025 to Apr 8, 2025
- 0.957
- correlation of daily moves, 4 years
- 1.24
- FSPGX move per 1% in FXAIX
- 0.931
- correlation, last 12 months
Month by month
Of the last 48 months. The typical gap was 1.54 points.
When did they diverge?
| Month | FSPGX | FXAIX | Gap |
|---|---|---|---|
| July 2026 | -4.8% | -0.3% | -4.43 pts |
| May 2023 | +4.6% | +0.4% | +4.14 pts |
| October 2026 | -4.5% | -0.6% | -3.90 pts |
| December 2024 | +0.9% | -2.4% | +3.26 pts |
Where the numbers come from. 1000 daily adjusted closes per fund from the Kavout market-data API, dividends included. Signals and indicators are Kavout’s own, refreshed nightly. Every figure is calculated from those adjusted closes.
Holdings and fees
What do you actually own with FSPGX and FXAIX?
- Price
- $46.95
- Price
- $264.99
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