Hold. Too predictable, and I'm holding long on the stock. Whenever the Canadian market is closed and the NAS open, this stuff happens the next day. Hope no one bought the open like was suggested.
I believe we still end green pretty good, because the volume yesterday was strong. However don't listen to the buy on open the next time this happens. It's repetitive. Wait for the green dip and buy. Flip it for a few bucks too if you already have a long position.