I've got a Dec Put credit spread position that I entered weeks ago. With a week and a half to go, the short put is at .50 with a great profit. The underlying has moved higher, and I wanted to tighten up the position. But then I was thinking, if I sold a put at a higher strike for, let's say, $1, and bought back the lower put for .50, it would be a wash. I'd be better off letting the original short put expire, and save the commish. Is my thinking right?