Biogen Inc
Biogen Inc (BIIB) Options Open Interest
BIIB options open interest is 39,542 contracts. The 2-week average daily volume is 1,200 contracts across the chain.
Read more
Monitoring BIIB open interest helps you see where real money is positioned on Biogen Inc's options and which strikes are attracting the most commitment from traders. Biogen Inc's open interest reflects the total number of outstanding contracts that have not been closed or exercised, making it a powerful gauge of liquidity, conviction, and potential support and resistance zones. Use our scanner to monitor BIIB options open interest in real time and find the strikes that matter.
Open interest is distinct from volume: volume counts how many contracts are traded in a session, while open interest counts how many remain open at the end of the day. Rising BIIB options open interest alongside rising volume suggests new positions are being built, while falling open interest signals positions are being closed. Heavy open interest at specific strikes often acts as a magnet near expiration and can hint at where dealers and large traders expect Biogen Inc to settle.
Biogen Inc. discovers, develops, manufactures, and delivers therapies for treating neurological and neurodegenerative diseases. The company offers TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA for multiple sclerosis (MS); SPINRAZA for spinal muscular atrophy; and FUMADERM to treat plaque psoriasis. It also provides BENEPALI, an etanercept biosimilar referencing ENBREL; ADUHELM for the treatment of Alzheimer's disease; IMRALDI, an adalimumab biosimilar referencing HUMIRA; and FLIXABI, an infliximab biosimilar referencing REMICADE. In addition, the company offers RITUXAN for treating non-Hodgkin's lymphoma, chronic lymphocytic leukemia (CLL), rheumatoid arthritis, two forms of ANCA-associated vasculitis, and pemphigus vulgaris; RITUXAN HYCELA for non-Hodgkin's lymphoma and CLL; GAZYVA to treat CLL and follicular lymphoma; and OCREVUS for treating relapsing MS and primary progressive MS; and other anti-CD20 therapies.
Further, it develops BIIB135, BIIB061, BIIB091, and BIIB107 for MS and neuroimmunology; Aducanumab, Lecanemab, BIIB076, and BIIB080 to treat Alzheimer's disease and dementia; BIIB067, BIIB078, BIIB105, BIIB100, and BIIB110 to treat neuromuscular disorders; BIIB124, BIIB094, BIIB118, BIIB101, and BIIB122 for treating Parkinson's disease and movement disorders; BIIB125 and BIIB104 for treating neuropsychiatry; Dapirolizumab pegol and BIIB059 to treat immunology related diseases; BIIB093 and BIIB131 to treat acute neurology; BIIB074 for neuropathic pain; and BYOOVIZ, BIIB800, and SB15 biosimilars, which are under various stages of development. The company has collaboration and license agreements with Acorda Therapeutics, Inc.; Alkermes Pharma Ireland Limited; Denali Therapeutics Inc.; Eisai Co., Ltd.; Genentech, Inc.; Neurimmune SubOne AG; Ionis Pharmaceuticals, Inc.; Samsung Bioepis Co., Ltd.; Sangamo Therapeutics, Inc.; and Sage Therapeutics, Inc. Biogen Inc. was founded in 1978 and is headquartered in Cambridge, Massachusetts.
Pin risk into expiration, dealer positioning, liquidity checks for large orders — all of it starts with knowing where BIIB open interest is concentrated. Our scanner maps Biogen Inc's open interest across every strike and expiry, flags unusual buildups, and lets you drill into the contracts that institutional money is actually holding. Trade Biogen Inc's options open interest as the signal it is, not as an afterthought.
| 255.00 | — | 2.25 | 2.25 | 83% | +0.1721 | 81 |
| 225.00 | 4.20 | 7.70 | 5.95 | 36% | +0.6079 | 30 |
| 230.00 | 0.85 | 4.70 | 2.78 | 31% | +0.4152 | 18 |
| 240.00 | 0.05 | 0.90 | 0.48 | 31% | +0.1069 | 16 |
| 220.00 | 7.00 | 11.10 | 9.05 | 33% | +0.7854 | 9 |
| 210.00 | 0.05 | 0.50 | 0.28 | 38% | -0.0544 | 44 |
| 200.00 | — | 1.75 | 1.75 | 88% | -0.1241 | 37 |
| 205.00 | — | 0.40 | 0.40 | 51% | -0.0582 | 37 |
| 195.00 | — | 2.15 | 2.15 | 106% | -0.1244 | 20 |
| 230.00 | 4.00 | 6.80 | 5.40 | 34% | -0.5750 | 10 |
As of September 25, 2026
Follow the money
Track BIIB open interest across every strike and expiration, identify where conviction is building, and trade with the positioning data on your side.
Start your 14-day free trial→