IWM and VTWO Track the Same 2000 Stocks Yet VTWO's Ten-Year Return Crushes IWM by Nearly 40 Percentage Points

The iShares Russell 2000 ETF (NYSEARCA:IWM | IWM Price Prediction) and the Vanguard Russell 2000 ETF (NASDAQ:VTWO) hold the same 2,000 small-cap stocks in the same weights and track the identical benchmark.