1. Why do you want to control the position? On the negative side, it is to control the total risk, especially the accident. Even if you look at the direction of the market and choose a better opening point, there will always be a small probability of accidents in the market. For example, I have encountered such a thing many times in recent years. Fortunately, the position is well controlled, and there is nothing serious. Even if it is a day-trading transaction, it is caught off guard. Don't ignore small probability events, because no matter how many times you succeed, an accident will cost you 10 years. In the field of venture capital, you must keep an eye on the 5% fatal accident. Only 100% can guarantee that it will not threaten our lives, and then let go to make a profit. Controlling positions is the most basic method to control risks. The formula I listed earlier uses multiplication. The whole formula is zero. If you can't control your position, it's meaningless to do anything else. On the positive side, controlling positions can not only control risks, but also expand profits. If you are the center line, once you do it right, you will increase your position step by step every time you overcome a resistance level, so that your position when you make a profit will always be greater than that when you make a mistake. 2. How to control positions? I think the following items must be adhered to: first, the total position cannot be greater than 50%; Second, the positions of various varieties are not more than 30%; The third is to spread positions on unrelated varieties; The fourth is to open positions in batches; Fifth, don't add positions in loss positions; Sixth, only after the new resistance level breaks through and is confirmed, add positions; Seventh, adding positions should be carried out in a decreasing way; Eight, do not add more than two positions. Controlling the profit and loss rate of positions is another key to the success of futures trading. The first is the stop loss problem. Of course, those who don't know the stop loss will be eliminated, but it is estimated that many who know the stop loss will also be eliminated, because the stop loss is a mistake. If you keep making mistakes, will others not be eliminated? Therefore, the core problem is not that you know the stop loss, but that you try to avoid the end of the stop loss. You must use stop loss in all your trading strategies. First, you should strive to make the success rate of the opportunity you seize greater than 50%, and choose a more favorable position to open positions during the trend process; In other words, if you trade ten times, you'd better only stop five times or less. Second, your position should not be too big, because the position is too big, even if you only encounter a stop loss once in ten transactions, it may make you lose money; Third, you should ensure that your stop loss position is less than your success position, otherwise it will lead to more stop loss and less profit; Fourth, your stop loss point should be scientific. I don't understand short-term trading. From the perspective of medium and long-term trading, I think you should stop only if you are really wrong or if you are not sure about right or wrong, because the mid-line position is based on trend+retracement or turning+confirmation, so if the trend is destroyed or the turning is unsuccessful, you should stop; However, there is also a problem of financial affordability. My experience is: take the trend line/neckline/moving average as the stop loss position, plus the absolute stop loss amount of about 5% of the total funds. Because my position of a single variety is only less than 30%, I try to open a position when I retreat, and the stop loss environment is still relatively loose, which can resist general shocks. Fifth, the stop loss is wrong, and the lost position should be rebuilt in time; Sixth, once there is a false breakthrough (that is, a false swing), you must stop; Seventh, in the formation of the pattern, only open positions in the original direction, add positions when the pattern breaks through the trend, and break through the stop loss and backhand in the opposite direction.