Vanguard S&P 500 ETF VOO

VOO offers simplicity and reliability by tracking the 500 largest US companies, which represent about 80% of total US market value, with Warren Buffett endorsing it for 90% of his estate. Its expense ratio of 0.03% is identical to #1 VTI, and the S&P 500 has returned an average of 10.2% annually since 1957 including dividends. As the world's largest ETF with over $600 billion in assets as of 2026, it slightly trails VTI in diversification but leads in brand trust and liquidity by a 50% higher trading volume on average.