$SPY - SPDR S&P 500 ETF Trust

The SPDR S&P 500 Trust is an exchange-traded fund built to track the performance of the S&P 500—representing 500 of the largest and most influential companies in the U.S. market. SPDR stands for Standard & Poor’s Depositary Receipts, the original name of the fund. $SPY was the first ETF ever created and is still the largest ETF in the world today. Whether you’re a long-term investor, active trader, or just learning the market, SPY sits at the center of modern investing.