Urgent! Some people want to buy 50 million shares for three months, but they are afraid that the stock price will rise. Please design a hedging scheme for this person according to the current trading rules of Shanghai and Shenzhen 300 stock index futures. 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.