FXNAX vs VBTLX: which was the better investment?
Fidelity U.S. Bond Index Fund against Vanguard Total Bond Market Index Fund Admiral Shares on real daily total-return data — every dividend reinvested, from May 4, 2011 to Jul 13, 2026.
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Frequently asked questions
Did FXNAX beat VBTLX?
It was effectively a tie over the full overlap period (May 4, 2011 to Jul 13, 2026): $10,000 grew to $13,825 in FXNAX and $13,934 in VBTLX, a difference of under 2%.
What would $10,000 in FXNAX be worth today?
$10,000 invested in Fidelity U.S. Bond Index Fund (FXNAX) on May 4, 2011 would be worth about $13,825 as of Jul 13, 2026, a total return of 38.2% (2.2% per year). The same $10,000 in VBTLX would be worth $13,934.
Which was riskier — FXNAX or VBTLX?
FXNAX swung with an annualized volatility of 4.5% and a worst peak-to-trough drop of -18.6%; VBTLX ran at 4.5% volatility with a -18.7% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.03 for FXNAX vs 0.05 for VBTLX.
What data is this comparison based on?
Daily adjusted closing prices covering May 4, 2011 through Jul 13, 2026 — the full period where both assets have price history. Adjusted prices include dividends and splits, so these are total returns. The page refreshes with new market data every day.
Can I change the dates, amounts, or add monthly investing?
Yes — the interactive tool on this page is pre-loaded with FXNAX vs VBTLX. You can set any start and end date, change the starting amount, add monthly contributions, or build a multi-asset portfolio and compare it against any benchmark.