Biogen (BIIB) November IV elevated at 83
Biogen (NASDAQ: BIIB) October weekly call option implied volatility is at 26, October is at 27, November is at 83; compared to its 52-week range of 25 to 63 into a FDA panel to discuss Biogen Alzheimer's application on November 6. Call put ratio 1 call to 1.2 put.