Annexon Inc

ANNXNASDAQ · USD
4.23USD0.00 (+1.44%)
1210

Annexon Inc (ANNX) Options Open Interest

ANNX options open interest is 55,847 contracts. The 2-week average daily volume is 1,741 contracts across the chain.

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Monitoring ANNX open interest helps you see where real money is positioned on Annexon Inc's options and which strikes are attracting the most commitment from traders. Annexon 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 ANNX 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 ANNX 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 Annexon Inc to settle.

Annexon, Inc., a clinical-stage biopharmaceutical company, discovers and develops therapeutics for autoimmune, neurodegenerative, and ophthalmic disorders. The company's C1q is an initiating molecule of the classical complement pathway that targets distinct disease processes, such as antibody-mediated autoimmune disease and complement-mediated neurodegeneration. Its product candidates include ANX005, a monoclonal antibody, which is in Phase II/III clinical trials to treat patients with guillain- barré syndrome; Phase II trial in patients with warm autoimmune hemolytic anemia; and Phase II clinical trial for Huntington's disease and amyotrophic lateral sclerosis.

The company is also developing ANX009 that is in Phase Ib trial in patients with lupus nephritis; and ANX007, which is in Phase II clinical trials to treat patients with geographic atrophy. In addition, it develops ANX105, an investigational monoclonal antibody targeting neurodegenerative indications; and ANX1502, an investigational oral small molecule for the treatment of certain autoimmune indications. The company was incorporated in 2011 and is headquartered in Brisbane, California.

Pin risk into expiration, dealer positioning, liquidity checks for large orders — all of it starts with knowing where ANNX open interest is concentrated. Our scanner maps Annexon 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 Annexon Inc's options open interest as the signal it is, not as an afterthought.

2026-10-16
Calls
5.000.150.350.25111%+0.33912,174
6.000.350.35181%+0.324270
10.000.300.30273%+0.225462
7.000.900.90340%+0.474652
4.000.900.90178%+0.632937
Puts
6.003.003.00365%-0.43702,526
5.000.151.550.8552%-0.8748112
7.000.505.402.95158%-0.827123
4.000.750.75186%-0.36456
1.000.300.30595%-0.04530

As of September 18, 2026

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Track ANNX open interest across every strike and expiration, identify where conviction is building, and trade with the positioning data on your side.

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