A statistical measure of the changes in a portfolio representing a market. The Standard & Poor’s 500 is the most well-known index, which measures the overall change in the value of the 500 stocks of the largest firms in the US.
Key Words
A statistical measure of the changes in a portfolio representing a market. The Standard & Poor’s 500 is the most well-known index, which measures the overall change in the value of the 500 stocks of the largest firms in the US.