Ran up 2 then down 2
What you saw today was probably forced short liquidations from a fund, similar to last august. Tomorrow I suspect we will see the long liquidations and could be game over.
You were correct, with that knowledge, you could have sold at $11.50 and bought back at 8.50. $3 spread who have made you a bundle in two days!
funds or big block owners selling at the <10 trigger, countered by a stock repurchase. happened 2x today, 1 was after hours