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?
My strategy is to find a stable altcoin on a decent exchange that fluctuates, and then buy, sell and rebuy until I have accumulated a satisfactory amount. I can then either sell back into Bitcoin and take my profits or just sell and get my original investment back. With this method I have my original investment and some of the altcoins.