Cramer: Mea culpa! This stock's action is why I say small-cap biotechs are only for speculation By: CNBC.com News July 13, 2017 at 18:46 PM EDT Jim Cramer admits he was too eager about the stock of Alder BioPharmaceuticals, which just took a huge hit. Read More >> Related Stocks: Alder Biopharma Allergan Plc