S&P 500 is a stock index that includes shares of the 500 largest financial companies in the United States, including banks and financial institutions. It was launched in 1957 and reached its highest point at 1965 on October 9, 2007, which is considered the last day of the global market recovery, followed by collapses in global markets and exchanges, and the index fell below 800 points in November 2008 after the global market crash.$BTC