Short Sellers Lightening Up Against Biotechs (AMGN, GILD, CELG, GENZ, BIIB)
Short sellers haven’t just eased up on betting against financial stocks. If you look at the major biotech stocks not involved in mergers you will see an across the board drop in the short interest in major biotechs. Below we have show the dates and the changes to represent each of the major names:
- Amgen (AMGN) 07/31/2008 short interest 31,659,693 down 22.96% from 07/15’s 41,097,709 shares.
- Gilead (GILD) 07/31/2008 short interest 33,141,320 down 0.06% from 7/15’s 12,632,227 shares.
- Celgene (CELG) 07/31/2008 short interest 12,301,038 down 20.38% from 7/15’s 5,642,397 shares.
- Genzyme (GENZ) 07/31/2008 short interest 6,839,521 down 8.21% from 7/15’s 3,888,041 shares.
- Biogen Idec (BIIB) 07/31/2008 short interest 7,467,029 down 2.67% from 7/15’s 4,819,980 shares.
With all the merger activity happening in the sector, you can imagine that short sellers probably wanted to avoid walking in one morning to find the stock up 25% on a merger announcement.
Jon C. Ogg
August 12, 2008
Short Sellers Lighten Up on Major Biotechs in May
We ran the short selling report that just came out on major NASDAQ biotech stocks to see what the change in short selling was. Interestingly enough, in almost all of the major and large US biotechs traded on NASDAQ.
STOCK (Ticker) MAY 30 MAY 15 CHANGE
Amgen Inc. (AMGN) 22,678,517 24,778,770 -8.48%
Biogen Idec Inc. (BIIB) 6,346,464 6,788,432 -6.51%
Celgene Corporation (CELG) 13,775,373 16,336,232 -15.68%
Genzyme Corporation (GENZ) 5,684,945 5,621,969 +1.12%
Gilead Sciences, Inc. (GILD) 32,478,444 32,690,603 -0.65
ImClone Systems Inc. (IMCL) 7,149,395 7,664,009 -6.71%
And below you can see the short selling changes on some of the smaller biotechs that are still rather active in daily trading volume. The results below are more mixed than they are in the major biotechs.
STOCK (Ticker) MAY 30 MAY 15 CHANGE
Amylin Pharmaceuticals, Inc. (AMLN) 23,855,471 23,642,854 +0.90%
Cell Genesys, Inc. (CEGE) 16,931,592 17,222,281 -1.69%
Dendreon Corporation (DNDN) 31,117,812 30,728,499 +1.27%
Illumina, Inc. (ILMN) 12,239,553 11,902,877 +2.83
Invitrogen Corporation (IVGN) 9,125,954 9,340,210 -2.29%
Medarex, Inc. (MEDX) 21,837,573 19,682,828 +10.95%
Jon C. Ogg
June 11, 2008
