While it would not be a good idea to sell all bitcoins in a bull market, some bitcoins should be kept in the fund.  There are many investors who are anxious to see a bull market, and they think that if there is a good profit, they should sell everything. However, the trading strategy may differ from one person to another.  I agree it can be a good idea to sell your bitcoins during a bull run, but sell 50% without selling all the bitcoins.  Because there is no guarantee when the next bear market will occur.  If Bitcoin really go to moon if the price goes above 100k then you can consider it.