Industry WIKI

The SPDR S&P 500 ETF Trust, commonly known by its ticker symbol SPY (NYSE Arca: SPY), is an exchange-traded fund (ETF) that seeks to track, before expenses, the price and yield performance of the S&P 500 by holding, as far as practicable, a portfolio of common stocks included in the index, with portfolio weights that substantially correspond to the index. Launched on January 22, 1993, SP