Biogen is a biopharmaceutical company focused on discovering, developing and delivering therapies for neurological and neurodegenerative diseases as well as related therapeutic adjacencies. Co.'s main growth areas include multiple sclerosis (MS) and neuroimmunology; Alzheimer's disease and dementia; neuromuscular disorders, including spinal muscular atrophy (SMA) and amyotrophic lateral sclerosis; movement disorders, including Parkinson's disease; ophthalmology; and neuropsychiatry. Co.'s marketed products include TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI and FAMPYRA for the treatment of MS; SPINRAZA for the treatment of SMA; and FUMADERM for the treatment of severe plaque psoriasis. The BIIB stock yearly return is shown above.
The yearly return on the BIIB stock yearly return page and across the coverage universe of our site,
is a measure of the annual return over the calendar year 2019 for the given stock.
When performing this calculation it is important to factor in dividends, because a financial instrument's annual return is
more than just the change in price if that instrument pays a dividend or coupon.
One way to factor dividends into the return is simply to count them as cash — we don't do
that here. Instead, our website aims to empower investors
by performing the BIIB annual return calculation with any dividends reinvested as applicable (on ex-dates).
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