The profit taking between traders and investors is different, but in principle it must have the price target. Before we buy/sell in the market, we must have a careful plan so that we can stay in the market for a long time.
The market is very dynamic. No one in this world can accurately predict the direction of the market. If you are absolutely sure of the prospects of the portfolio you hold, then I don’t recommend selling everything. If you are not sure, it is best to take all profits and mix in a new portfolio that is still promising. The market will always go through a "bearish-sideways-bullish" cycle, so we need to learn to take profit/stop loss.
traders actually doing the same way what investors did because of the mannerism of crypto currency, wherein most traders sometimes hold and prefer to dump if however it's needed especially if they all knows that the bearish will take over the market.. But for me traders is the most profitable, you know why? Because traders can avoid the massive correction of the market, and buy again to the lowest price to obtain good profits in the future.. Unlike investors that only waiting to reach the target but the leverage of their income are not the same with traders.