-looks like more inst own more KERX (on 3/28/13 than 12/31/12) which is the reason for the price jumping from 2.62 to 7.045 in the same period (x2.7).
-the shorts have very little contribution on the price. the short int is 11.3M, about same level before peri result.
While the inst investors view KERX as total different company now, shorts may still think Kerx as the same old bio-company with high risk clinic trials of cancel drug.
This is very dangerous to the retail shorts. There are still tremendous challenges for KERX to be fully success in both daily and pre-daily market, the fundamental science is proved to be sound with data from both US and Japan. The company is making progress every day (I guess) and once the inst shorts realize that they are not able to keep the price under real market potential, then they will cover their position so quickly to leave the retail short in the fire. in order to cover the shorting loss, they may switch to long position and add more fuel into the fire. not mention more inst investors (both new and old) will buy more to bring up the ownership up (could be as high as 80%-90%) before buyout or drug approval.
the sooner to cover, the earlier to have peace; the earlier to switch to long, the sooner to have joy ...
look the price action (price up with low volume) , I guess some are taking smart move
Kerx is in quiet accumulation period by the big guy, which is why you don't see any pumping or many articles or new coverage initiations by another investment house, when institutional ownership will hit ~60% then we will see twice a week pumping by everybody including Cramer, just like the case with ACAD and SRPT...for now the game is to get cheap shares from clueless retail hands