Better S&P 500 ETF: State Street's SPY vs. Vanguard's VOO

The Vanguard S&P 500 ETF (NYSEMKT:VOO) and State Street SPDR S&P 500 ETF Trust (NYSEMKT:SPY) both provide broad exposure to the S&P 500, but differ most in expense ratio, assets under management, and liquidity. Both Vanguard S&P 500 ETF and State Street SPDR S&P 500 ETF Trust seek to replicate the performance of the S&P 500 Index, capturing the returns of 500 leading U.S. companies across all major sectors. This comparison explores how these two giants stack up on cost, liquidity, risk, and portfolio cons ...