Biotech: Vertex and VIVUS Draw Short Interest (ALXN, AMGN, ARNA, BIIB, CELG, DNDN, GILD, ILMN, ONXX, PCYC, REGN, VRTX, VVUS)
The short interest in biotech stocks is generally rising, judging by the short interest changes from August 15 settlement date versus the July 31 settlement date. We have tracked the key short…