The last time this stock made a nosedive like this was June during ASCO. They released similar "good" data and the market reacted in similar fashion. The pps continued to bleed lower for two weeks straight that's 14 days. We are on day 3. IMO the previous lows will not hold and this may go to low 3s or below.
Market wasn't expecting Breast Cancer results a month later. Also back in June there was only 13M short interest compared to the 20M now. They surprised the market with that. Nobody knows what will happen in such an irrational situation as this. I have seen stocks depressed like this spring 100% on a hint of good news. For those thinking about selling or waiting for the price to drift lower. Keep that in mind.
Monday CC is right around the corner; I will never be surprised if the PPS drifts lower (from here). However, there will be clinical updates provided; possibility of patent news or updates on the new platform. It seems ready to bounce up through the conference.