SPDR S&P 500 ETF Trust
The SPDR S&P 500 ETF Trust (SPY) is an exchange-traded fund that aims to replicate the performance of the S&P 500 Index, encompassing 500 leading publicly traded companies in the United States. Launched on January 22, 1993, it is managed by State Street Global Advisors and is recognized as the first ETF introduced in the U.S. market.