The Standard & Poors Index was created in 1926 with 90 stocks to reflect the performance of the largest companies of the US Stock Market. In 1957, the index was renamed as S&P 500 Stock Composite Index to include the Top 500 Companies.
The S&P 500 index is one of the most popular equity indices to represent the US Stock Market. (Face of American Market) The index has generated around 11%-12% annual average returns based on S&P 500 historical data in the last 93 years (1926-2019).
If you had invested $100 in the S&P 500 index at the beginning of 1970, it would have grown to nearly $15400 by the end of 2019(inclusive of dividends)
S&P 500 Index
S&P 500 Annual Return Chart (1970 to 2019)
In the below chart you easily can check the annual return of the S&P 500 index (Includes Dividends) from 1970 to 2019.
S&P 500 Historical Return Data (1970-2019)
Index return is a mirror of the overall performance of S&P 500 Companies and these companies are leading the U.S economy, so historical returns data is important for investing.
In this table, you can see the returns of the S&P 500 with dividends or without dividends, opening price and the closing price:
S&P 500 YTD Average Returns
The returns of the S&P 500 index are calculated based on many factors, such as inflation, time, and dividends. For effective investing decisions, we have shared the average return of past 5, 10, 15, 20, 25, and 30 years.