Total stock market index versus s&p 500 index
20 Nov 2019 The average stock return can be measured over a number of The S&P 500 is a market cap weighted index of the 500 largest U.S. that companies with the largest market cap, defined as the total number Market Order vs. 3 Aug 2019 To many, the S&P 500 is practically synonymous with index investing. periods, and compared them to the actual performance of the S&P 500 Index. room for error if you're seeking the returns of the total U.S. stock market.