The long position in futures is to buy and open positions, hold multiple futures, and the futures contract price rises to make a profit.

Short futures are selling and opening positions, holding short futures orders and profiting from the decline in futures contract prices.

Futures margin is the financial guarantee for customers to perform or trade. Generally speaking, the deposit can be understood as the deposit of customers who need spot delivery. For speculative customers, it can be understood as principal. Compared with stocks, stocks are completely traded. For example, the stock price of a stock is 12 yuan, and the first-hand stock (100 shares) needs12 *100 =1200 yuan. The price of soybean meal in the futures market is 2500 yuan/ton, and soybean meal futures 1 lot (1ton) need 2500 yuan * 10 = 25000 yuan, and the margin ratio for joining the application is 5%, so the margin required for customers to hold first-hand soybean meal futures is 2500 yuan *10 *.