Why does the futures have to pay back the principal? This stems from the margin system of futures. In the process of contract trading, futures investors do not need to pay the full contract value, but only need to pay a certain percentage of margin to participate in investment trading.

For example, adding a soybean meal futures contract, I spend 2800 yuan per ton, and one contract represents 10 ton. In the absence of a margin system, buying a first-hand contract requires:

2800X 10=28000 yuan,

The deposit system is adopted, and the deposit interest rate is 15%, so the amount to be paid for purchasing a contract is:

2800X 10X 15%=4200 yuan,

Goods equivalent to the original price can be bought at 15%.

If the contract price drops by 10%, that is, the price per ton of soybean meal drops by 280 yuan, the investors in the next contract will lose 2,800 yuan, and if the investors only contribute 4,200 yuan, they will lose 2,800 yuan, accounting for 66% of the loss. If the contract price drops by 500 yuan, the investor has already lost 5,000 yuan, which has exceeded the principal paid before, so that we can.

Margin trading of futures is to increase the leverage in trading and amplify the risk of trading. You may lose more and earn more.

In the actual operation process, except in extreme cases, such a situation rarely occurs. Generally speaking, futures companies will do a good job in risk control and remind customers in time. Nevertheless, investors involved in futures trading should be reminded of the risks.