Time-weighted returns since 2002 show Vanguard Mega Cap Growth ETF outperformed iShares Russell 2000 Growth ETF. Volatility measured by three-year standard deviation of returns indicates lower risk for the Vanguard fund. The comparison uses trailing three-year return standard deviation data.
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Summary by ByteBrief
Vanguard and iShares ETFs compared by TWRR since 2002