Shorted before the close and held overnight because i was expecting a gap-down or at least a morning panic at the open. Stock closed red on the day and this was a first big red candle after the runnup. Beside that it could not hold above $6.15 which was important area. Covered for a loss next day and i was actually quite surprised because it had a decent gap-up so there was no chance to cut loss faster. It has totally tricked me.