Small biotechs are almost always highly speculative, so it's essential that any investor who...

|By:, SA News Editor

Small biotechs are almost always highly speculative, so it's essential that any investor who seeks to venture into those murky waters start with informed research of the sort analyst Ohad Hammer provides in his overview of five biotechs to watch: EXEL, CLDX, SGEN, ARRY, SNTA. (h/t Mick Weinstein)