Profits from stock index futures are calculated based on the margin ratio.

Currently, the margin for stock index futures launched in my country is 15% of the contract value in May and June, and 18% of the contract value in September and December.

So, if you have 500,000 in your account, and the current points are assumed to be 3,000 points, and you are buying 1 lot more, and you are buying the May or June contract, you need to pay a 15% deposit. 135,000. If it rises by 50 points, it will reach 3050 points. Then your current income is:

3050*300-(3000*300)=15000

That is to say, you used 135,000 yuan to make a business of 900,000 yuan. , earned 15,000 yuan. This is what is meant by leverage.