The specific provisions of this are: "First, adjust the intraday opening limit standard of stock index futures. CICC determined that since September 7th, 20 15, the trading volume of Shanghai and Shenzhen 300, SSE 50 and CSI 500 stock index futures customers exceeded 10 in a single day, which constituted an abnormal trading behavior of "large trading volume in a single day". Intra-day trading volume refers to the sum of all contracts bought and sold by customers for a single product in a single day. The number of open positions in hedging transactions is not subject to this restriction. "That is, the 10 lot is the upper limit of opening a new position, which does not mean closing the position (it is normal to hold more than 10 lots before the 7th).
In addition, abnormal trading behavior does not mean that you can't open more than 10, but that after opening more than 10, this account is likely to be checked and the transaction may be restricted or suspended. The concrete example is just like the account of 164 checked a few days ago.