For a trader, the most important thing is not the position of opening a position, but how to optimize the list held in his hand after opening a position, how to expand profits from profits, and how to reduce losses from losses. As you said, it is impossible for a trader to look at the computer screen all the time to affect the price of stocks or futures, but he can clearly see the change of the trend every minute. It is possible that the decision of a K-line will lead to two completely different results. If you set a stop loss as you said, there is no need to exist as a trader. For example, for a stock, your stop loss position is 7.0 yuan, and the current market price is 7. 12 yuan. Since you have the idea of timely stop loss, why not sell it now? One share may reduce the loss by 0. 12 yuan, and you hold100000 shares? You should know whose money you are taking now, and you have the obligation to guarantee the maximum profit and minimum loss for this money.

A trader's job is not to buy stocks, but to hedge his portfolio. You should adjust your portfolio in real time according to the trend and information. Things that affect your mentality will hardly appear. No matter what happens, a qualified trader will quickly and correctly make experience and tell him what to do. In fact, when we used to work, you could only stare at the disk, drink a glass of water in front of the disk, rest after the disk, and have lunch for only 30 minutes.