Compare/Updated Oct 26, 2026, refreshed every trading day
FXAIX vs VOO
Fidelity 500 Index Fund against Vanguard S&P 500 ETF: 4 years of returns, risk and today’s technical read, from Kavout’s own data.
VOO did better over the period: $1,000 grew to $2,065 (+106.5%), versus $2,023 (+102.3%) for FXAIX. VOO also led across every listed return period, including 3-year performance of +83.6% versus +80.0% and 1-year performance of +15.1% versus +13.8%. The advantage matters because both funds closely track the S&P 500, so VOO delivered modestly higher returns while maintaining similar risk. Volatility was nearly identical at 12.7% for VOO versus 12.6% for FXAIX, while maximum drawdown was slightly better for VOO at -18.7% versus -19.0%. The funds’ daily moves were highly correlated at 0.982, and the typical monthly performance gap was only 0.05 percentage points. VOO’s 0.03% expense ratio may have contributed to its edge, although the provided figures do not establish causation.
- Technical indicators are not available for this ticker yet.
- Price is above its 200-day average ($665); 50-day at $705.
- RSI 42, neutral. Supertrend says sell. ADX 14, so the trend is weak.
Head to head
Which has returned more, FXAIX or VOO?
FXAIX beat VOO in 19 of the last 48 months; VOO won the other 29. The typical monthly gap was 0.05 points.
Total return by period
Which is riskier?
Both: Feb 19, 2025 to Apr 8, 2025
- 0.982
- correlation of daily moves, 4 years
- 0.99
- FXAIX move per 1% in VOO
- 0.932
- correlation, last 12 months
Month by month
Of the last 48 months. The typical gap was 0.05 points.
When did they diverge?
| Month | FXAIX | VOO | Gap |
|---|---|---|---|
| April 2026 | +10.2% | +10.6% | -0.37 pts |
| October 2025 | +2.0% | +2.4% | -0.35 pts |
| July 2025 | +1.9% | +2.3% | -0.35 pts |
| December 2025 | -0.2% | +0.1% | -0.32 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 FXAIX and VOO?
- Price
- $264.99
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