S&P 500
InvestingA stock market index tracking the 500 largest publicly traded U.S. companies, widely used as a benchmark for market performance.
Example
Example: Consider an investor building a $100,000 portfolio. S&P 500 — a stock market index tracking the 500 largest publicly traded u.s. companies, widely used — directly affects investment strategy and long-term returns. Getting this concept right can mean tens of thousands of dollars in difference over a 20-year period. Model your portfolio with our investment calculator.