First of all, the real thing has two sides, and the position makes money quickly and loses money quickly. Of course, Man Cang is easy to explode! In Man Cang trading, the risk measured by the ratio of equity to margin is 100%, that is, equity is the same as margin, and a slight loss is lower than margin, which means that at this time, the money you owe to the futures company will definitely not be willing to trade, so you should be reminded of the risk or close your position. If it is less than 80%, it will generally be flat. If the loss is removed, there will be funds in the account, the number of losses will be more, and the later principal will be more. Half-position trading also has the risk of short positions, which is more peaceful than making money and losing money in Man Cang. Generally, novices suggest 20%~30% positions.