Compare/Updated Oct 26, 2026, refreshed every trading day
FSKAX vs FXAIX
Fidelity Total Market Index Fund against Fidelity 500 Index Fund: 4 years of returns, risk and today’s technical read, from Kavout’s own data.
FXAIX did slightly better over the period: $1,000 invested on October 28, 2022 would be worth $2,023 versus $1,997 for FSKAX, a 102.3% versus 99.7% return. FXAIX also had a modest edge over the latest year, returning 13.8% versus 13.5%, while both returned 80.0% over three years. The difference matters mainly because FXAIX achieved the higher return with slightly lower 12-month volatility, 12.6% versus 12.9%, and a marginally less severe worst drawdown, -19.0% versus -19.4%. Results were close: the funds’ daily-move correlation was 0.992, FSKAX outperformed in 25 of the last 48 months, and FXAIX won 23. FSKAX’s broader market exposure did not translate into better performance during this period.
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Head to head
Which has returned more, FSKAX or FXAIX?
FSKAX beat FXAIX in 25 of the last 48 months; FXAIX won the other 23. The typical monthly gap was 0.26 points.
Total return by period
Which is riskier?
Both: Feb 19, 2025 to Apr 8, 2025
- 0.992
- correlation of daily moves, 4 years
- 1.02
- FSKAX move per 1% in FXAIX
- 0.972
- correlation, last 12 months
Month by month
Of the last 48 months. The typical gap was 0.26 points.
When did they diverge?
| Month | FSKAX | FXAIX | Gap |
|---|---|---|---|
| March 2023 | +2.6% | +3.7% | -1.04 pts |
| December 2023 | +5.3% | +4.5% | +0.80 pts |
| November 2024 | +6.7% | +5.9% | +0.80 pts |
| December 2025 | -0.9% | -0.2% | -0.71 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 FSKAX and FXAIX?
- Price
- $209.46
- Price
- $264.99
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