QQQ - Monster gap up closed in 2 hours.

We had what, like a 2.5% gap up, something like that? In two hours it was closed! I can't wait to see what happens next, because it'll be a direct insight into just how much weight algorithms/traders put into gap fills. I'm guessing it jumps back up. Not to 2.5%, but I think we close over a point up. Then again, no one knows anything right about now.