BIIB Stock: Is Biogen Still A Buy After The 14% Spike?

CANADA - 2025/05/17: In this photo illustration, the Biogen logo is seen displayed on a smartphone screen. (Photo Illustration by Thomas Fuller/SOPA Images/LightRocket via Getty Images)SOPA Images/LightRocket via Getty ImagesBiogen (BIIB) shares recorded their fifth consecutive day of increases, accumulating a total return of 14% during this span. The company’s market value has increased by approximately $3.3 billion over the past 5 days, bringing its current market capitalization to around $23 billion. The ...