State Street SPDR S&P 500 ETF

About State Street SPDR S&P 500 ETF

State Street SPDR S&P 500 ETF (SPY) is an exchange-traded fund that aims to track the performance of the S&P 500 Index. As one of the oldest ETFs, it provides investors with exposure to 500 large-cap U.S. stocks selected by S&P's index committee. The fund is managed by State Street Global Advisors and is widely used for core portfolio holdings.

Why it matters

SPY is the largest and most liquid ETF by assets under management and trading volume, making it a benchmark for the U.S. equity market. Its scale and liquidity attract institutional and retail investors for hedging, speculation, and long-term investing. The fund's structure allows for intraday trading and options strategies, distinguishing it from mutual funds.

How we research SPY

Fundamentals like the ones above feed our fundamental screen — EPS acceleration, ROE and momentum∧quality — the one research class that survives walk-forward in our testing. We don’t issue price targets or buy/sell calls: see /edge for how rigorously (and how rarely) anything passes. This page is market data and research, not investment advice.