Paul Merriman has a fun "lifetime investment calculator" that can get you those numbers, it assumes investing Jan 1 of every year (It's tuned to their recommend

Paul Merriman has a fun "lifetime investment calculator" that can get you those numbers, it assumes investing Jan 1 of every year (It's tuned to their recommended allocations but includes the S&P 500 as a baseline). https://paulmerriman.com/lifetime-investment-calculator/ https://paulmerriman.com/lifetime-investment-calculator/ If you'd invested 100% in the S&P 500, say 10,000 a year on Jan 1 every year from 1998 to 2018, you'd have $522,135 from a $200,000 total principal, or roughly 13% annualized return (not including inflation)