What is S&P 500 Index annualized return?

So if it is at 1000 on the start and end date, this will be 0. S&P 500 Index Annualized Return - The total price return of the S&P 500 index (as above), annualized. This number basically gives your 'return per year' if your time period was compressed or expanded to a 12 month timeframe.

What is S&P 500 dividends reinvested index return?

S&P 500 Dividends Reinvested Index Return - The total price return of the S&P 500 if you had reinvested all of your dividends. S&P 500 Dividends Reinvested Index Annualized Return - The total price return of the S&P 500 if you reinvested dividends. Again, it will annualize the return given above. Inflation Adjusted (CPI)?

Is the S&P 500 a good investment?

Since 1926, the average annual total return for the S&P 500, an unmanaged index of large U.S. stocks, has been about 10%. Investments that offer the potential for higher rates of return also come with a higher degree of risk. Hypothetical rates of return are for illustrative purposes only and are not intended to portray actual results.