If there must be a detail, you can refer to the turtle trading rule: break through the 20-day high and do more, and fall below the 10 day low.
Let's talk about the second question first: what can we do to make profits run?
First of all, let's look at an example: a trader, doing multi-rebar futures, gains 1 point after entering the market. At this time, he immediately closed his position. Did he let the profits get away? No, he just ended the transaction when he saw the profit, and the profit just stepped on it. ...
Similarly, a trader who makes multi-rebar futures gains 100 points after entering the market. At this time, he has two choices:
1, close the position.
2. Keep it up.
If you close your position at this time, what is it called? This is called active profit taking, and his profit is fixed at 100. Did his profits run away? Before floating profit 1-99, he let the profit run away. However, at 100, he took a profit. He belongs to, let the profit run for a while.
Then, there is a trader who does multi-rebar futures and makes a profit 100 points after entering the market. At this time, he also had two choices, but he chose to keep them. He made a rule that unless one day, his profit retreated by 20% from the high point, otherwise, he would keep it.
Then at this time, if his 100 profit is reduced by 20 points, and when there are 80 points left, he will close his position. Similarly, if this market continues to rise, what about his 200-point profit? Only when the market retraces 20% of 200 points will he close his position. Through this rule, he let the profit run until it can't run.
This is the meaning of letting profits run: undertaking a retreat in exchange for more space in the future. This way is the best way to hold the right position in the trend.