### VOO Analysis VOO, the Vanguard S&P 500 ETF, tracks the performance of the S&P 500 Index. It's an excellent choice for investors seeking broad market exposure with low costs due to its minimal expense ratio. The ETF provides diversification across all sectors, which mitigates individual security risk. However, it is heavily weighted towards larger companies, which might limit gains in some market environments. Economic downturns or interest rate hikes can impact its performance due to its broad market exposure.