Futures sharing is not illegal. Futures sharing is not necessarily illegal, but it needs specific analysis. Futures sharing is a form of brokerage commission in futures trading, and brokers can give customers a certain percentage of commission according to trading volume or profit. This rebate is negotiated privately between the broker and the customer, and is not the official fee of the futures exchange. In China, the specific situation of futures sharing needs to comply with relevant laws and regulations. According to the Regulations on the Administration of Futures Trading, futures companies and employees shall not provide illegitimate interests to customers, and it is forbidden to provide the return of handling fees, commissions or other expenses. Therefore, if futures sharing violates the relevant laws and regulations, it will be considered illegal and need to bear corresponding legal responsibilities. In futures trading, investors should choose legal and compliant brokers and pay attention to the details of their commissions and handling fees to avoid unnecessary losses caused by irregular commission rebates.