Compare/Updated Oct 26, 2026, refreshed every trading day
FSKAX vs VTSAX
Fidelity Total Market Index Fund against Vanguard Total Stock Market Index Fund: 4 years of returns, risk and today’s technical read, from Kavout’s own data.
VTSAX did slightly better over the period: $1,000 invested on October 28, 2022 would be worth $2,016, versus $1,997 for FSKAX—a 19-dollar advantage, or 1.9 percentage points of cumulative return. VTSAX also led over three years (81.8% versus 80.0%), one year (14.7% versus 13.5%), six months (6.5% versus 6.4%), and YTD (12.2% versus 12.1%). Both funds matched over one and three months, and both had the same worst drawdown of -19.4% from February 19, 2025 to April 8, 2025. Risk was nearly identical: 12-month volatility was 13.0% for VTSAX and 12.9% for FSKAX. Their daily moves were highly correlated at 0.979, so the performance difference was modest and unlikely to materially change portfolio behavior.
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Head to head
Which has returned more, FSKAX or VTSAX?
FSKAX beat VTSAX in 26 of the last 48 months; VTSAX won the other 22. The typical monthly gap was 0.03 points.
Total return by period
Which is riskier?
Both: Feb 19, 2025 to Apr 8, 2025
- 0.979
- correlation of daily moves, 4 years
- 0.98
- FSKAX move per 1% in VTSAX
- 0.903
- correlation, last 12 months
Month by month
Of the last 48 months. The typical gap was 0.03 points.
When did they diverge?
| Month | FSKAX | VTSAX | Gap |
|---|---|---|---|
| December 2025 | -0.9% | -0.0% | -0.92 pts |
| January 2024 | +1.1% | +0.7% | +0.41 pts |
| December 2023 | +5.3% | +5.8% | -0.41 pts |
| November 2025 | +0.2% | +0.3% | -0.13 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 VTSAX?
- Price
- $209.46
- Price
- $181.59
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