Then buy a three-month futures contract. For example, it's June 10, so buy IF 1009. Now the futures contract is 300 yuan a little bit. Suppose the current price of IF 1009 is 2800 points, then the value of the first-hand contract is 2800 * 300 = 840,000 yuan. To preserve the value of 50 million, the number of lots bought is about 5000/84 = 60.
The required deposit is about 20% of the contract amount, that is, about100000 yuan.