Everyone says trying to get in and out of the stock market is unwise, but this bar chart makes clear why. Missing the 10 best days in of every decade since 1930 through the end of 2021 would have resulted in a total return of 60%, while staying in the Standard & Poor’s 500 index for the entire 91 years would have resulted in a total return of 21,120%. To be clear, missing the 10 best days in the stock market every decade in the 91-year peri..