Dropping your shorts

While some investors have begun to wonder out loud if there is a biotech bubble forming, the short interest numbers suggest the answer is "not yet" - although short interest in the larger biotechs is up over the past year.

Short interest for the iShares NASDAQ Biotechnology Index ETF (NASDAQ:IBB) ticked up 5% between Dec. 31 and Jan. 15, but has declined by 42% since hitting a 12-month high on Sept. 15...