The Vanguard S&P 500 ETF (VOO) provides exposure to roughly 500 of the largest U.S. companies by tracking the S&P 500 Index. Its top sector weightings include information technology (nearly 28% of assets), health care (around 14%) and financials (about 11%). The fund holds industry leaders such as Apple, Microsoft, Amazon, Alphabet and Meta Platforms, giving investors a broad allocation to megacap stocks that drive more than one-fifth of the fund’s total market value.

VOO’s expense ratio stands at just 0.03%, translating to $3 in annual fees for every $10,000 invested. Unlike mutual funds, the ETF structure allows intraday trading—VOO averages daily volumes above 6 million shares, keeping bid-ask spreads exceptionally tight (often less than one cent). This low-cost, highly liquid format makes it especially attractive for long-term buy-and-hold portfolios as well as for tactical allocations that require swift execution.

Over the past five years through mid-January 2026, VOO has delivered an average annualized return of 14.45%, outpacing the broader U.S. market’s small- and mid-cap segments by roughly 1.4 percentage points (Vanguard Total Stock Market ETF averaged 13.05% over the same period). Year-to-date, VOO has gained approximately 2.11%, reflecting continued strength in large-cap names and the narrow leadership of technology and AI-related stocks. Its long-term track record includes a total return of nearly 695% over the past two decades, underscoring its role as a core equity holding for investors seeking both growth and stability.