It depends on the news, doesn't it?
Some really good results could see a 50%+ rise.
Really bad, 50% + decline.
Results somewhere in between good and bad, rise/decline somewhere in between, haha.
If we open without news, I'm guessing there will be a bit of a buy up... gap open .2 - .205, maybe run to .21-.215... that is without the results. Then TH/NR... and apply the above two possibilities.