At present, the margin ratio of Shanghai and Shenzhen 300 stock index futures trading in China has been uniformly adjusted to 1 0% since the settlement on September 201day.

Under any of the following circumstances, the Exchange may adjust the trading margin standard according to the market risk, including:

(1) There is no continuous quotation from one party in futures trading;

(2) In case of national legal holidays;

(3) The Exchange considers that the market risk has changed significantly;

(4) Other circumstances deemed necessary by the Exchange. Where the Exchange adjusts the trading margin standard for futures contracts, all positions of the contracts shall be settled in accordance with the adjusted trading margin standard at the time of settlement on the same day.