Compare/Updated Oct 26, 2026, refreshed every trading day
FNILX vs FXAIX
Fidelity ZERO Large Cap Index Fund against Fidelity 500 Index Fund: 4 years of returns, risk and today’s technical read, from Kavout’s own data.
FNILX did slightly better over the 1,000 trading days from Oct 28, 2022 to Oct 23, 2026: $1,000 grew to $2,039, versus $2,023 for FXAIX, a difference of $16. FNILX’s total return was 103.9%, compared with 102.3% for FXAIX, although the funds were extremely similar, with 0.989 correlation and a typical monthly performance gap of only 0.13 points. FNILX also led in 29 of the last 48 months. FXAIX had slightly lower 12-month volatility, 12.6% versus 12.9%, while maximum drawdowns were nearly identical at -19.0% for FXAIX and -19.1% for FNILX. Recent performance was mixed: FNILX led over one month, three months, six months, and YTD, while FXAIX led over one year. Overall, FNILX delivered the better period return, but the advantage was modest and accompanied by marginally higher recent volatility.
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- Technical indicators are not available for this ticker yet.
Head to head
Which has returned more, FNILX or FXAIX?
FNILX beat FXAIX in 29 of the last 48 months; FXAIX won the other 19. The typical monthly gap was 0.13 points.
Total return by period
Which is riskier?
FNILX: Dec 6, 2024 to Apr 8, 2025; FXAIX: Feb 19, 2025 to Apr 8, 2025
- 0.989
- correlation of daily moves, 4 years
- 1.01
- FNILX move per 1% in FXAIX
- 0.988
- correlation, last 12 months
Month by month
Of the last 48 months. The typical gap was 0.13 points.
When did they diverge?
| Month | FNILX | FXAIX | Gap |
|---|---|---|---|
| December 2024 | -3.5% | -2.4% | -1.08 pts |
| December 2025 | -1.0% | -0.2% | -0.73 pts |
| April 2025 | -0.6% | -1.0% | +0.46 pts |
| October 2025 | +2.4% | +2.0% | +0.37 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 FNILX and FXAIX?
- Price
- $27.34
- Price
- $264.99
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