Buy futures bulls (bullish) and bears (bearish). Options include buy long (buy call options), short (sell call options), sell long (buy put options) and short (sell put options), among which buy call options and sell put options are multi-party (bullish); Selling call options and buying put options are empty (bearish)
According to my own analysis of the future market ups and downs, I can buy before I open a position, or I can sell before I open a position. After the price difference comes out, you can sell the position in the opposite direction to offset your open position. In this way, only the difference between opening and closing positions is left on your own "bill", and the deposit occupied by opening positions is automatically returned, and a complete transaction is completed. Trading is a "contract unit", not an actual commodity. Therefore, when trading, traders do not need to consider whether they need or own the corresponding physical objects, but only how to buy and sell to earn the difference. The result of buying and selling is only reflected in one's own "account", which can be simply understood as what is usually called "shorting".