It is also in line with the market reality that the minimum price change range of Shanghai and Shenzhen 300 index futures is set at 0.2, which makes trading easier. The minimum price change of 0.2 reduces the tracking deviation of investors' hedging and arbitrage. The lowest fluctuating price and handling fee are related to the lowest income of traders, and their proportion is also closely related to the activity and depth of the market. If the minimum fluctuation price is too small, speculators will be unwilling to provide real-time trading because of lower profits, and their speculative interest will be reduced, which will further affect the liquidity and depth of the market; The lowest fluctuating price is too large, so it is difficult for the market to form a smooth supply and demand curve, which is not conducive to reflecting the real price trend.
The transaction fee for the Shanghai and Shenzhen 300 Index futures is 30 yuan/lot (including risk reserve). In the actual transaction process, the futures company will also charge a certain percentage of fees on the basis of the exchange fees. If the futures company adds 20 yuan/hand, the handling fee for investors to complete a transaction is 100 yuan/hand. Compared with the lowest price range in 60 yuan, this charging standard is too high. Therefore, this charging standard is not conducive to the entry and exit of short-term investors, nor to the improvement of market liquidity. The author believes that the transaction fee standard should be lowered.