Biogen tumbles 8.7% as breakthrough Alzheimer’s data is clouded by dosing paradox

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Go back to Biogen tumbles 8.7% as breakthrough Alzheimer’s data is clouded by dosing paradox
BIOGEN IDEC Inc. (NASDAQ: BIIB) Delayed: 197.74 --0 (-0%)
Previous Close $197.74    52 Week High $333.65 
Open $197.74    52 Week Low $223.02 
Day High $197.74    P/E 25.32 
Day Low $197.74    EPS $7.81 
Volume 4