Explore how differences in sector exposure, risk, and yield shape the appeal of these two popular Vanguard ETFs for investors.Both the Vanguard Mega Cap Growth ETF (MGK +1.44%) and the Vanguard S&P 500 ETF (VOO +0.89%) are passively managed Vanguard funds aimed at U.S. large-cap equity exposure, but their strategies differ: MGK tilts toward high-growth mega-cap stocks, while VOO mirrors the full S&P 500. This comparison examines cost, returns, risk, sector tilt, and portfolio construction to help clarify wh ...