Fundstrat co-founder Thomas Lee tweeted a timely reminder against panic-selling on Sept. 28, reminding that the majority of Bitcoin (BTC) gains come in the ten best trading days of the year. In fact, excluding these ten best days, BTC is down 25% per year. Fundstrat’s ‘rule of 10 best days’ In any given year, the vast majority of gains in Bitcoin price come in just the ten biggest trading days, according to this rule. During the last bull market of 2017, price rose an incredible 1,136% in those ten days. But even during the bear market of 2018, the best …