Gold even three refers to the weighted average index of futures gold for three consecutive months, similar to the Shanghai Composite Index. Gold 1 103 refers to the gold futures delivered in March 201/year. When we buy and sell futures, we mainly look at the main contract, that is, the maximum volume and position. At present, the main contract time of gold futures is 1 106. That's almost all your problems. You can add me if you need anything.