Stamp duty usually does not directly affect futures trading. Stamp duty is a tax on securities transactions, covering the transactions of stocks, bonds and other securities. Futures trading is a kind of derivative trading, which is different from securities trading.

However, stamp duty may have an indirect impact on futures trading. As stamp duty increases the cost of securities trading, some investors may turn to futures trading to avoid stamp duty. This may lead to an increase in the trading volume in the futures market and have a certain impact on futures prices.

In addition, the policy change of stamp duty may cause investors' mood fluctuation, and then affect the market fluctuation. But this effect is often short-term and will not have a lasting impact on the futures market.