Why Viking Therapeutics Stock Got Thrashed on Tuesday

A monster rival is making aggressive moves in one particular segment. News from a deep-pocketed rival put the hurt on biotech Viking Therapeutics's (VKTX -6.27%) stock on Tuesday. Said rival seems determined to dominate a very hot therapeutic area these days, and it might be tough for a relatively small fry like Viking to compete. On the back of such worries, investors sold out of the biotech, sending its share price down by more than 6% across the trading session. That was on a good day for stocks, general ...