Alexion Pharmaceuticals: How to Buck a Biotech Selloff

Alexion Pharmaceuticals (ALXN) has inoculated itself against today’s biotech selloff thanks to its stellar financial results. The SPDR S&P Biotech ETF (XBI) has fallen 1.3% to $128.69 at 2:10 p.m., as Biogen Idec (BIIB) has dropped 4.2% to $293.91 and Regeneron Pharmaceuticals (REGN) has declined 3.7% to $291.81. Even Gilead Sciences (GILD), which managed to [...]