If you were a speculator in the futures market, which varieties would you fry? I am a futures trader myself. Some futures varieties are active and some are unpopular. I will choose active varieties, such as polypropylene PP, and I will choose the main contract, because the positions and turnover are relatively large, the liquidity is high, and the transaction is easy to be completed quickly and in time. This is my first consideration for futures. I must be an active trading variety, and then choose a variety I am familiar with, because the characteristics of futures varieties are different, and each variety has different personality. Being a familiar variety has a greater probability of success. In addition, because the margin of each futures product is different, some are thousands in one hand and hundreds of thousands in the other, so I choose the futures product that suits me according to my own funds, and it won't be the one whose margin is not suitable for my own funds.