There was a user yesterday telling you not to be afraid of staying invested in the market because missing the best days of the market reduces your returns. If you listened to them and bought in yesterday ([OP posting yesterday](https://www.reddit.com/r/investing/comments/1jlg7j2/missing_a_few_days_in_market_can_cost_you/?sort=new)), you would have faced one of the worst days of the market this year and instantly lost 2 percent! Ignoring that redditor would have already signficantly boosted your returns.
A lot of the best days of the market have occurred in downturns. Some of the best one-day rallies occured during the 79 percent drop during the devastating dot com bubble and the 1929 crash. So staying invested in those days would have also been meaningless, as you would still ride the dead cat bounces to the bottom.
**With the 90 worst days out, the annual return rises to 19.57%**. Almost double the historical return of the s&p 500 from the years 1963-2004 based off a study from the University of Michigan. Doubling your money!
But how do you time the worst days of the market? The current administration literally said it was coming!