So, where do we start? Let's just say that the stop loss of gold speculation is usually 3-5 dollars, and it is meaningless if it is bigger. This stop loss has much to do with your entry point. If you enter the market in the important support area during the decline, then the stop loss can be set within 2-3 dollars. Or in the process of rising near the important resistance position above, the same is true! If you enter the market in the middle stage of a market, it is difficult to set the stop loss. If it is too small, it is easy to sweep the stop loss. If it is too big, it is not necessary! Unless you are light and the trend is very certain. Otherwise, it is useless to set it! In fact, setting a stop loss is not the most important thing. Stop loss depends on when you enter the market and when you enter the market. And the size of the position? And is your judgment on the future price fluctuation trend accurate? In addition, you need to know that this stop loss can be hard stop loss or elastic stop loss. The above is an elastic stop loss! The so-called hard stop loss means that your stop loss is strictly locked every time. For example, no matter what time and place, the stop loss after admission is the same, which is $3. In this case, it doesn't matter how many times you stop loss, what matters is how big is your total winning percentage and the average profit point of your profit list? If the ratio of your total trading loss sheet to profit sheet is 5: 5, the loss value is $3, and the average profit point is $3, then you only lose the handling fee. If the ratio of your total trading loss sheet to profit sheet is 5: 5, the loss value is $3, and the average profit point is $4, then you will keep the breakeven (there is no commission, and you will still lose the handling fee of 5 orders after receiving the commission), and so on. . . . . . If the ratio of your trading loss value to your profit value reaches 1: 2, or 1: 3, then even if you only have a 40% chance of winning, or even less than 40%, you are still profitable.