What is a sort of average that takes into account the price of many stocks that are traded on the exchange?

A sort of average that takes into account the price of many stocks traded on an exchange is known as a Stock Market index. Examples include the S&P 500, which measures the performance of 500 large companies listed on stock exchanges in the United States, and the Dow Jones Industrial Average, which tracks 30 significant publicly traded companies. These indices provide a snapshot of market trends and overall economic health by reflecting the collective performance of the selected stocks.