“Since 1926, 84% of the rolling 3-year periods for the S&P 500 index (i.e., the 94 separate 3-years beginning 1926-28, then 1927-29, . . . 2019-21) have produced a positive return. The S&P 500 consists of 500 stocks chosen for market size, liquidity and industry group representation. It is a market value weighted index with each stock’s weight in the index proportionate to its market value.” #gracestone