Never seen a stock drop 60%+ in one day, then another 20%+ the...

Never seen a stock drop 60%+ in one day, then another 20%+ the next on no news before. Certainly, the way investors have just entered and left this stock has been something I've never experienced. I still don't think it's likely it'll go back all the way to 3.3c, the placement price - would mean virtually all the new investors that bought during its rise were all short term momentum players.This would surprise me because it does look like there's a genuine business underneath here, albeit obviously highly speculative as it's dependent on the success of its drug candidates.