After hours Earnings trading

#Earnings, last night I bought $SBUX stock as it spiked down after the close, at 57.90, 57.48, and 57.20. I have sold half of the position today at 58.00, 58.50, and 59.00. Holding the rest for now. This is a John Carter technique, the idea being that stocks can often have sharp spikes in both directions in the first minutes after release. You can thus set buy orders at the expected move area on stocks you believe should react positively to earnings, then sell once it moves up. In this case, SBUX didn’t recover after hours and stayed down overnight, but is now benefitting from a rallying market today, not to mention a record quarter (lower guidance was the reason for the dip).