For example, you estimate that one day in the future you will get a sum of US$ 65,438+00,000, which is equivalent to 62 500 yuan RMB at the current real-time exchange rate of 6.25. But you are afraid that the exchange rate may become 6.20 that day, so you can only receive 62000, not 500. In order to avoid this loss, it is necessary to do hedging business in the futures market. It is the reverse operation of the transaction. For example, you can buy put options at some future date. For example, some people in the market think that the exchange rate of the day may be 6.22, and some people will open a put option at this price, so you can buy the same option of $65,438+00,000. In a sense, you have locked in some exchange rate losses. This is only a partial hedge. Of course, if the market trend is misjudged, you won't lose anything, at most, the loss of options, and it is also a limited part. Of course, if the market is extremely reflective, then no method can determine the value preservation, at most, it is to reduce losses. For example, on that day, the exchange rate of the US dollar rose instead of falling. You should receive 70,000 RMB at 7.00, but in the futures market, you will lose a considerable margin. It is also necessary to reduce returns. The so-called hedging is an evasive method to reduce unpredictable losses and speculative gains only when the forecast is basically accurate and the amount is huge in a limited time.