Personally, I think your thinking is very confused. You are a little confused about futures trading and physical trading. "If (a boss) sells to (b boss) 1000 tons of steel at the price of 1000 yuan per ton, the deposit is 10000 yuan (assuming the deposit is 10%), and then (b boss) sells it at the price of 2000 yuan per ton. If you want to design compulsory liquidation, you can only do it in online futures trading. Your above paragraph about the buying and selling relationship of ABC3' s three bosses is not established, because online futures trading can't specify buyers and sellers, and the trading system automatically matches the transactions. I think you seem to be asking three bosses how to achieve a steady profit and no loss for boss B in futures and spot hedging. I don't know if that's what you mean. .