Old Resistance becomes new support?

COMM had a tremendous move during earnings and is now retracing to its old resistance
Its showing clear support at the 13.52 level
With Price Target at 15.81
Thats a +13% gain

It closed with very low volume yesterday
and I love how its hovering on the 20ema
If it closes above the 9 tomorrow
I will be looking for an entry with a stop loss at 15.75