You won't be allowed once the deal closes. It's like you won't be allowed to not sell your house once the buyer has bought your house.
Yes. And you won't even feel it cuz it will be just processed electronically.
Why are you all of sudden so naive? You are supposed to be a seasoned futures trader. Is your account hacked?
Um, dude, really? A shareholder in a public company going private has zero commonality to the holder of a futures contract. Oi vey!
