IWO vs. MGK: Is Small-Cap Growth or Mega-Cap Tech the Better Choice for Investors?
The Motley Fool·2026-03-26 00:19
The Vanguard Mega Cap Growth ETF (MGK +0.64%) and the iShares Russell 2000 Growth ETF (IWO +1.32%) differ sharply by cost, portfolio makeup, and risk profile.MGK aims to provide broad exposure to the largest U.S. growth companies, tracking the CRSP US Mega Cap Growth Index, while IWO tracks small-cap stocks with growth characteristics. This comparison explores how their costs, performance, sector exposure, and risk metrics stack up for investors seeking growth-oriented ETFs.Snapshot (cost & size)MetricMGKIW ...