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IVV vs VOO: which was the better investment?

iShares Core S&P 500 ETF against Vanguard S&P 500 ETF on real daily total-return data — every dividend reinvested, from Sep 9, 2010 to Jul 15, 2026.

iShares’ S&P 500 fund (IVV)Vanguard’s S&P 500 fund (VOO)
16 years of daily dataDividends reinvestedUpdated daily

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Browse all match-ups on the comparison hub, build your own in the Compare Investments tool, or check a single asset's exact-date returns with the Investment Calculator.

Frequently asked questions

Did IVV beat VOO?

It was effectively a tie over the full overlap period (Sep 9, 2010 to Jul 15, 2026): $10,000 grew to $90,658 in IVV and $90,893 in VOO, a difference of under 2%.

What would $10,000 in IVV be worth today?

$10,000 invested in iShares Core S&P 500 ETF (IVV) on Sep 9, 2010 would be worth about $90,658 as of Jul 15, 2026, a total return of 806.6% (14.9% per year). The same $10,000 in VOO would be worth $90,893.

Which was riskier — IVV or VOO?

IVV swung with an annualized volatility of 17.1% and a worst peak-to-trough drop of -33.9%; VOO ran at 17.0% volatility with a -34.0% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.76 for IVV vs 0.76 for VOO.

What data is this comparison based on?

Daily adjusted closing prices covering Sep 9, 2010 through Jul 15, 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 IVV vs VOO. 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.