
From 1928-2017, the S&P 500 showed an annualized average return of roughly 9.6% per year. From 2009-2017, the S&P 500 showed an annualized average return of roughly 15.1% per year. One of these data points is unsustainable (okay maybe both). The S&P 500 would have to go nowhere for the next 5 years to bring…