Last refreshed: September 4, 2026 (US ET)
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BIIB

Growth

BIOGEN INC

Health Care·Biotechnology

Biogen Inc. discovers, develops, manufactures, and delivers therapies in the United States, Europe, Germany, Asia, and internationally. The company provides TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, and TYSABRI for multiple sclerosis (MS); SPINRAZA for spinal muscular atrophy; SKYCLARYS to treat Friedreich's Ataxia; QALSODY for treating amyotrophic lateral sclerosis; FUMADERM to treat plaque psoriasis; BENEPALI, an etanercept biosimilar referencing ENBREL; IMRALDI, an adalimumab biosimilar referencing HUMIRA; FLIXABI, an infliximab biosimilar referencing REMICADE.

Close · 3M

+20.06%

BIIB · 3M

+20.06%

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Held by 1 AI ETF

AIEQ3.600%

as of Sep 4

Signal performance

Each tracked ETF's moves on this stock, grouped by fund. Returns are measured from the signal date to the latest close — hypothetical, no commissions or slippage.

Buy signals3
Win rate67% (2/3)
Avg buy return+5.15%
AIEQnow 3.600% of fund4 signals

AIEQ · Weight increase · 2d

weight 0 → 3.600% (new)·stock up 3.9% in the 30 days before

Sep 3·entry $224.51·now $220.83Fresh

-1.64%
since Sep 3

AIEQ · New entry · 1d

weight 0 → 3.510% (new)·stock down 0.0% in the 30 days before

Sep 1·entry $216.04·now $220.83Drifting

+2.22%
since Sep 1

AIEQ · Exit · 1d

weight 0.290% → 0 (exited)·stock up 9.1% in the 30 days before

Jul 1·entry $209.74·now $220.83

+5.29%
since Jul 1

AIEQ · New entry · 1d

weight 0 → 0.260% (new)·stock up 0.8% in the 30 days before

May 30·entry $192.23·now $220.83Chased

+14.88%
since May 30

Sell signals show what the stock did after the AI exited. A negative number means the AI's exit was well-timed.