Halloween week produced treats instead of tricks for some biotech investors. Quite a few biotech stocks rose by double-digit percentages, with three in particular soaring close to 30% and higher over the last five days.
Adamas Pharmaceuticals (NASDAQ: ADMS), Juno Therapeutics (NASDAQ: JUNO), and Stemline Therapeutics (NASDAQ: STML) ranked among the biggest biotech winners of the week. Here’s what drove these stocks higher — and whether or not they’re smart picks now.