Biopharmaceutical stock Alnylam Pharmaceuticals (NASDAQ:ALNY) is riding a tsunami of hope that a treatment for a rare heart condition receives Food & Drug Administration approval. Although it has several drugs already on the market, the biopharma is not yet profitable.But if Alnylam can gain expedited approval from the FDA for its RNA interference drug vutrisiran, that could change quickly. Alnylam stock soared 31% on positive Phase 3 trial news and continued rising afterward. Getting vutrisiran, which is m ...