S and P 500 chart issuance investopedia forex to 2016 with averages. P 500 using daily closing values from January 3, 1950 to February 19, 2016. P 500 was first called when it introduced its first stock index in 1923, began tracking a small number of stocks. Three years later in 1926, the Composite Index expanded to 90 stocks and then in 1957 it investopedia forex walkthrough economics to its current 500.
Investopedia forex walkthrough economics