$GSI had a huge spike after hours and was still rising premarket. It had a tendency to make big spikes, in January it run up to $3. Stock opened at 2.26 and was swinging around there for awhile. Bought $GSI at 2.25 ten minutes before market open. It was definitely up trending but had some downs too. Goal was to sell at 2.50 and got executed. It climbed to 2.80 and down trended after that. Would have been a good short also. Trade was quick and gained biggest profit so far.