The short interest data are out for the most recent settlement date, March 31. Generally speaking, companies within the biotech industry are considered a riskier group of stocks, with big potential upside and big potential downside.

As we have said before, FDA rulings can make or break the biotech stocks, and short sellers and mega-bulls often go to war against each other in these companies. After all, if a single failed clinical trial can mean disaster for a stock, then some short sellers can argue for a stock implosion down the road.

24/7 Wall St. has reviewed the top biotech companies, without focusing on speculative companies. The March 31 short interest data has been compared with the previous report, and short interest in these selected biotech stocks shrank.

Alexion Pharmaceuticals Inc.’s (NASDAQ: ALXN) short interest dropped to 4.44 million shares from the previous 4.76 million. Shares were trading at $96.23, in a 52-week range of $72.67 to $139.95.

Amgen Inc. (NASDAQ: AMGN) saw its short interest decrease to 8.29 million shares from the previous level of 8.69 million. Shares were recently trading at $218.21, in a 52-week range of $166.30 to $244.99.

Short interest in Biogen Inc. (NASDAQ: BIIB) fell to 3.01 million shares from the previous 3.56 million. The stock traded at $321.05, within a 52-week range of $215.78 to $374.99.

Gilead Sciences Inc. (NASDAQ: GILD) saw its short interest fall to 23.64 million shares from 26.58 million in the previous period. Shares were trading at $73.51, in a 52-week range of $60.89 to $85.97.

The number of MannKind Corp. (NASDAQ: MNKD) shares short decreased to 36.46 million. The previous reading was 42.72 million. The stock traded at $1.04 a share, in a 52-week range of $0.80 to $1.88.

Get Our Free Investment Newsletter

I have read, and agree to the Terms of Use

Thank you for reading! Have some feedback for us?
Contact the 24/7 Wall St. editorial team.