not sure where you saw that the bounce was "strong" on our support at 560-565. We barely bounced and the buy volume is very very weak. no way we we break past 605 with this. We need to go down further get more steam from the 500-520s
If we are still at this level by tomorrow morning then Yes I would say it is bearish. But thus far im expecting Stamp to return to 565 within the next few hours and then see more bullish volume in the next 4-10 hours.