Lets take the following example. You buy BTC at 6k and it goes up to 8K. Do you sell 100% of it or do you sell 75% and keep 25% in BTC.
What are your opinions / tactics?
I will sell whole it and buy it again when its price go down. Because according to my observing, after the uptrend will be the downtrend. Why you don't sell it with 20% profit, this is really a good profit to sell all