Futures Man Cang means that the number of futures contracts held by investors reaches the maximum limit set by the exchange, that is, the maximum risk that investors can bear. When the number of futures contracts held by investors reaches Man Cang, if they continue to trade, they need to close some or all of the contracts to maintain their maximum risk level.

Futures Man Cang generally means that the trader's position reaches the maximum value stipulated by the exchange, and after reaching the Man Cang, the investor can no longer increase the contract position. This means that when the market moves in an unfavorable direction, investors can't continue to add positions to average costs, so they can only choose to close positions to reduce losses.

The concept of futures Man Cang is different from that of Man Cang in the stock market. In the stock market, Man Cang means that all investors use their own funds to buy stocks. In the futures market, investors can use leverage to trade and participate in more positions with less money. Therefore, in the futures market, Man Cang is the largest number of contracts that investors can hold.