Stop loss can be simply understood as the maximum loss you can bear for each transaction (we think it is the transaction cost). Anti-equivalent martingale strategy model of fund management: the most important premise is that the maximum amount of a single loss is the unit model of each fixed amount. For example, if you have 654.38+ 10,000 yuan of funds, you decide to use only 654.38+05% of the funds for each transaction, that is, 654.38+05,000 yuan, so that you can only make 2 lots of natural rubber or 4 lots of soybeans for each transaction, and the loss of each transaction will be controlled between 2% and 5% of the total funds. After trading for a period of time, if the profit is 30% and the total capital reaches 130000 yuan, you will still use 15% for each transaction, that is, 19500 yuan, so you can either make 3 lots of natural rubber or 6 lots of soybeans for each transaction. Increase the position after profit, and reduce the position after loss, which is in line with the anti-equivalent martingale strategy. Risk percentage operation model structure: fix the share of each loss in the total funds (risk control), find the trading point through the trading mode, and determine the position size to enter the market according to the initial stop loss and exit strategy (position adjustment). Position = total unit loss/1 hand loss value is strictly implemented (whether it can be successful in the end). In the general principle of risk control of fluctuation risk, the maximum potential loss of a unit should be controlled at 65438+ 0-5% of the total funds (depending on the amount of funds and risk tolerance). The size of long-term trading stop loss often depends on the admission time, which is the key to determine whether the stop loss is reasonable and control the position. When you are uncertain about the entry time and stop loss, it is recommended to consult your broker or professional trading service personnel.