Lesson One · Gut checkHow often does the market crash 30% or more?Guess from your gut — the chart has the count.AssessmentOver the last hundred years, how often has the US stock market fallen 30% or more from a high?ABasically never — a drop that deep has only really happened once, in the Great Depression.BA handful of times — roughly once every couple of decades.CConstantly — crashes that big are the market's normal state most of the time.Check answer →