Biomarin Pharmaceutical Inc

BMRNNASDAQ · USD
63.97USD+0.03 (+0.04%)
479

Biomarin Pharmaceutical Inc (BMRN) Options Open Interest

BMRN options open interest is 42,046 contracts. The 2-week average daily volume is 1,789 contracts across the chain.

Read more

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

BioMarin Pharmaceutical Inc. develops and commercializes therapies for people with serious and life-threatening rare diseases and medical conditions. Its commercial products include Vimizim, an enzyme replacement therapy for the treatment of mucopolysaccharidosis (MPS) IV type A, a lysosomal storage disorder; Naglazyme, a recombinant form of N-acetylgalactosamine 4-sulfatase for patients with MPS VI; and Kuvan, a proprietary synthetic oral form of 6R-BH4 that is used to treat patients with phenylketonuria (PKU), an inherited metabolic disease. The company's commercial products also comprise Palynziq, a PEGylated recombinant phenylalanine ammonia lyase enzyme, which is delivered through subcutaneous injection to reduce blood Phe concentrations; Brineura, a recombinant human tripeptidyl peptidase 1 for the treatment of patients with ceroid lipofuscinosis type 2, a form of Batten disease; Voxzogo, a once daily injection analog of c-type natriuretic peptide for the treatment of achondroplasia; and Aldurazyme, a purified protein designed to be identical to a naturally occurring form of the human enzyme alpha-L-iduronidase.

In addition, it develops valoctocogene roxaparvovec, an adeno associated virus vector, which is in Phase III clinical trial for the treatment of patients with severe hemophilia A; BMN 307, an AAV5 mediated gene therapy, which is in Phase 1/2 clinical trial to normalize blood Phe concentration levels in patients with PKU; and BMN 255 that is in Phase 1/2 clinical trial for treating primary hyperoxaluria. The company serves specialty pharmacies, hospitals, and non-U.S. government agencies, as well as distributors and pharmaceutical wholesalers in the United States, Europe, Latin America, and internationally. BioMarin Pharmaceutical Inc. has license and collaboration agreements with Sarepta Therapeutics, Ares Trading S.A., Catalyst Pharmaceutical Partners, Inc., and Asubio Pharma Co., Ltd. The company was incorporated in 1996 and is headquartered in San Rafael, California.

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

2026-10-16
Calls
62.502.455.303.8844%+0.60871,300
70.000.502.501.5051%+0.2884753
60.003.906.705.3041%+0.7419533
57.506.008.907.4547%+0.8210455
65.000.853.702.2838%+0.4695419
Puts
60.000.501.000.7533%-0.2172814
65.002.053.002.5329%-0.5508603
57.503.003.0087%-0.2812459
55.000.150.300.2340%-0.0703331
70.005.506.706.1026%-0.8850200

As of September 18, 2026

Follow the money

Track BMRN 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