500,000 is actually to restrict small funds from participating in the operation of stock index futures. In practice, it is not limited by funds. The premise is enough.

The deposit is 6,543.8+0.6 million yuan each, which means that after you operate 500,000 yuan, 6,543.8+0.6 million yuan will be frozen. The remaining 340 thousand can operate the others.

After opening an account, it is not mandatory to keep the account above 500,000. As long as it is opened, no matter how much money there is, it is eligible to do stock index futures, as long as there is enough margin.