SPY is the most traded ETF in the world, tracking the S&P 500 index of 500 large-cap U.S. companies. It was the first ETF ever created in the United States, launching in 1993. SPY provides broad exposure to the U.S. stock market in a single trade. It includes companies like Apple, Microsoft, Amazon, NVIDIA, and Berkshire Hathaway. With over $500 billion in assets, SPY is the benchmark that most investors and traders compare their performance against.
SPDR S&P 500 ETF Trust (SPY) is currently trading at $763.47. Over the past 52 weeks, SPY has traded between a low of $629.28 and a high of $779.37. Average daily volume is approximately 31.9M.
SPY is the original ETF — launched in 1993 — and tracks the S&P 500 Index by holding all 500 underlying stocks in their respective index weights. There is no leverage, no daily reset, no decay. One share of SPY gives you proportional exposure to Apple, Microsoft, NVIDIA, Amazon, Meta, Berkshire, JPMorgan, and 493 others. The fund is rebalanced quarterly as the S&P 500 Committee adds and removes companies. SPY is unit investment trust structured, which means it does not reinvest dividends internally — it distributes them quarterly to holders.
SPY is the most-traded equity instrument in the world. Institutional desks use it for hedging and core S&P 500 exposure. Retail investors use it as a one-ticket diversified US large-cap holding. Day traders use SPY options — the most liquid options market on the planet, with multi-billion-dollar daily volume — for everything from short-term directional bets to portfolio hedges. Long-term investors compare SPY to its cheaper rivals (VOO at 3 basis points, IVV at 3 basis points; SPY charges 9). For pure buy-and-hold, the rivals win on expense ratio.
SPY moves on everything — Fed days, monthly CPI/PCE prints, jobs reports, GDP, earnings season, geopolitical events, and tail risks. The most-watched windows are 8:30 AM ET for major macro data, 2:00 PM ET for FOMC decisions and minutes, and 4:00 PM ET cash close. Earnings season clusters four times a year. SPY also reacts sharply to S&P 500 Committee announcements when major companies are added or removed from the index — passive flows from index funds force buying or selling at the rebalance date.
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