If i plan to hold for a long period of time ( say 6 months) or whatever, does my position get rolled over to the next month or does the position close out altogether?
OK, let's start from scratch. Let's say, very hypothetically, that you're long some April futures today. Tomorrow is the last trading day. As I understand it, you want to keep the long exposure to the underlying instrument into May and beyond. The only way to do that would be to sell the April futures you own and replace them with May futures. Does that make sense?