20 15 due to the drastic market fluctuation and insufficient liquidity, under the pressure of all parties, CICC has continuously introduced control measures to substantially increase the trading margin and handling fee, and at the same time limited the intraday trading volume to 10 lot. After that, the liquidity of stock index futures plummeted and the market was almost "frozen". As a result, stock index futures have lost their normal functions such as price discovery, risk hedging and asset allocation.
Therefore, it is very urgent to restore the normalization of stock index futures.