See all ETFs tracking the S&P 500 Index, including the cheapest and the most popular among them. Compare their price, performance, expenses, and more. Wall Street's main stock indexes closed higher on Friday, with their biggest boost coming from Amazon's upbeat earnings forecast, but sentiment was dampened by worries that the Federal Reserve is... S& P 500 Today: Get all information on the S& P 500 Index including historical chart, news and constituents. Index performance for S&P 500 INDEX (SPX) including value, chart, profile & other market data.