Can all stock index futures IF 1008, 1009,10/2,10/03 be traded? Can I buy and sell on the same day?
As long as it is a contract with a year and month code showing the opening price, it can be traded. As a general investor, in order to make a quick deal, they all choose contracts with large positions (called main contracts).
Futures follow the trading principle of T+0. Buy one second, you can close your position the next. infinite