Vanguard S&P 500 ETF (VOO) vs Vanguard Total Stock Market ETF (VTI)
VTI wins — VTI and VOO are functionally equivalent for most investors — same expense ratio, nearly identical 10-year returns, and b…
Scores: Vanguard S&P 500 ETF (VOO) 9/10 · Vanguard Total Stock Market ETF (VTI) 9/10
VTI and VOO are functionally equivalent for most investors — same expense ratio, nearly identical 10-year returns, and both from Vanguard. VTI edges it out for long-term buy-and-hold investors because the small-cap diversification costs nothing and provides theoretical upside over 20-30 year time horizons. Either is an excellent choice.
Vanguard S&P 500 ETF (VOO) lists at $530 while Vanguard Total Stock Market ETF (VTI) lists at $274 — Vanguard Total Stock Market ETF (VTI) undercuts Vanguard S&P 500 ETF (VOO) by $256 (93%).
Spec-by-spec comparison
| Vanguard S&P 500 ETF (VOO) | Vanguard Total Stock Market ETF (VTI) |
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| index | S&P 500 — 503 large-cap US companies | CRSP US Total Market — ~3,700 US companies |
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| expense_ratio | 0.03% | 0.03% |
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| holdings | ~503 stocks | ~3,700 stocks |
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| market_cap_exposure | Large-cap only (>$14.6B market cap threshold) | Large, mid, and small-cap |
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| dividend_yield | ~1.3% trailing 12 months | ~1.3% trailing 12 months |
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| 10yr_annualized_return | ~13.1% (as of 2025) | ~13.0% (as of 2025) |
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Vanguard S&P 500 ETF (VOO)
What works
- S&P 500's 503 holdings are the most liquid US stocks — index composition is determined by a committee, filtering out low-quality additions
- 0.03% expense ratio makes it one of the cheapest investment vehicles that exists — $30/year on $100K invested
- Benchmark status: virtually all professional performance is measured against the S&P 500, making VOO the cleanest comparison baseline
What doesn't
- Excludes ~3,500 small and mid-cap stocks — missing the long-run small-cap premium documented by Fama-French
- Top 10 holdings are 33% of the fund — heavily concentrated in mega-cap tech
- Committee-selected index means slightly less mechanical and more arbitrary inclusion criteria than VTI's rules-based CRSP index
Vanguard Total Stock Market ETF (VTI)
What works
- 3,700 holdings captures 99% of US market cap — true total market exposure including small and micro-cap companies
- Same 0.03% expense ratio as VOO — zero cost penalty for additional diversification
- Small-cap exposure provides theoretical access to the Fama-French small-cap premium over 30+ year holding periods
What doesn't
- 10-year returns are nearly identical to VOO — small-cap premium has underperformed in 2015-2025 period
- 3,700 holdings include many small companies with minimal liquidity — in practice, VOO's holdings drive >95% of returns
- Slightly less recognized than S&P 500 for performance conversations and benchmarking purposes
Bottom line
Our pick: Vanguard Total Stock Market ETF (VTI).
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