90% leverage is high. 9 times is the highest leverage of stock trading, which is the biggest risk. For example, the first-hand coking coal margin is 1 1%, which is about 9 times the leverage. The first-hand margin of cheap futures products needs about 2000 yuan, and futures are margin trading. Then the leverage formed by corn futures trading is 9 times, and the calculation method is very simple. 100 divided by margin ratio = leverage ratio.