There was a similar study done by a Wall Street money manager who looked at the number of days when Tesla shareholders made money.
A greater than 2% swing in either direction was, relatively speaking, rare.
The big moves came on a few days, most were within narrow trading ranges.
Absolutely, I have also read several studies that state that only a few days a year influence the main return. Nevertheless, I would like to find out when it is best to buy and sell in the future. There are so many indicators, and if you combine them correctly, you can discern a pattern to solve this “puzzle.”
Or simply adhere to the "time in market is better than timing market" adage.
It is an old one but old adages are old for a reason.