Well, if you want to buy and sell stocks, you must have enough capital or stocks. Futures trading only pays a certain percentage of margin, which is generally 5%~ 15%. For example, a ton of corn with a price of 1900 only needs to pay 190, and the margin ratio is 10%. If it is a stock with a value of 1900, it needs to be done with 1900. This is the leverage of the futures market, of course, the benefits and risks are multiplied.