IWB vs VOO: which was the better investment?
iShares Russell 1000 ETF against Vanguard S&P 500 ETF on real daily total-return data — every dividend reinvested, from Sep 9, 2010 to Jul 15, 2026.
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Frequently asked questions
Did IWB beat VOO?
No — measured from Sep 9, 2010 to Jul 15, 2026 with dividends reinvested, VOO came out ahead: $90,916 versus $88,123 from a $10,000 start. That gap compounds from a 14.9% annual return against 14.7%.
What would $10,000 in IWB be worth today?
$10,000 invested in iShares Russell 1000 ETF (IWB) on Sep 9, 2010 would be worth about $88,123 as of Jul 15, 2026, a total return of 781.2% (14.7% per year). The same $10,000 in VOO would be worth $90,916.
Which was riskier — IWB or VOO?
IWB swung with an annualized volatility of 17.1% and a worst peak-to-trough drop of -34.6%; VOO ran at 17.0% volatility with a -34.0% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.74 for IWB 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 IWB 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.