For anyone interested in this topic, https://dqydj.com/sp-500-historical-return-calculator/ https://dqydj.com/sp-500-historical-return-calculator/ is a good pla

For anyone interested in this topic, https://dqydj.com/sp-500-historical-return-calculator/ https://dqydj.com/sp-500-historical-return-calculator/ is a good place to start. As a starting point, accept the defaults and hit "Calculate Historical Returns." The minimum return and standard deviation are most relevant. (Note that it defaults to adjusting for inflation, but that's really the only metric that makes sense when comparing long periods, particularly those including the 1970s and 1980s, so that's probably what you want.)