You can't. Hongyuntong APP is a mobile terminal software integrating market, transaction and information. Support cloud condition list, stop loss and take profit, etc. The interface is simple and fully functional, and Hongyuntong can't arbitrage. Arbitrage is also called arbitrage trading or spread trading. Arbitrage refers to buying or selling a futures contract, selling or buying another related contract at the same time, and closing the two contracts at a certain time.