Futures margin shall be stipulated by the exchange, and will be adjusted under the following circumstances:

1. In the case of daily limit or daily limit of futures products on the same day, the margin ratio of futures products on the second trading day will increase;

2. In case of legal holidays, the exchange will also increase the margin ratio of futures trading contracts;

3. When the contract futures enter the first month of the delivery month, the margin ratio will also increase;

4. When the positions of futures trading contracts reach a certain level, the exchange will also increase the margin ratio.

Futures margin refers to the self-owned funds of Chinese investors in futures accounts. Because futures opening does not need to pay a fee equal to the contract value, only a part of it needs to be paid, so the funds used by investors to open positions are also called futures deposits. Futures guarantee should follow the time regulation of silver transfer.