Feels like I have read this article many times.. Investors love to run with if you juts miss the best 5 days you will be this much worse off. Then a momentum trader will write almost the identical article saying look what happens if you can just avoid the 5 worst days. How are both these scenarios not just cherry picking to fit your thesis?

Hi Andrew, there is no question that one can find data to fit any hypothesis. The main point we wanted to make here is just how hard it is to 'time markets' for most people. There are obviously experienced investors who do this for a living but, particularly for less experienced, individual investors timing is very very hard!