Thermo Fisher Scientific Inc
Thermo Fisher Scientific Inc (TMO) Options Open Interest
TMO options open interest is 55,578 contracts. The 2-week average daily volume is 3,196 contracts across the chain.
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Monitoring TMO open interest helps you see where real money is positioned on Thermo Fisher Scientific Inc's options and which strikes are attracting the most commitment from traders. Thermo Fisher Scientific 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 TMO 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 TMO 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 Thermo Fisher Scientific Inc to settle.
Thermo Fisher Scientific Inc. provides life sciences solutions, analytical instruments, specialty diagnostics, and laboratory products and biopharma services in the North America, Europe, Asia-Pacific, and internationally. The company's Life Sciences Solutions segment offers reagents, instruments, and consumables for biological and medical research, discovery, and production of drugs and vaccines, as well as diagnosis of infections and diseases; and solutions include biosciences, genetic sciences, and bio production to pharmaceutical, biotechnology, agricultural, clinical, healthcare, academic, and government markets.
Its Analytical Instruments segment provides instruments, consumables, software, and services for pharmaceutical, biotechnology, academic, government, environmental, and other research and industrial markets, as well as clinical laboratories. The company's Specialty Diagnostics segment offers liquid, ready-to-use, and lyophilized immunodiagnostic reagent kits, as well as calibrators, controls, protein detection assays, and instruments; immunodiagnostics develops, manufactures and markets complete bloodtest systems to support the clinical diagnosis and monitoring of allergy, asthma and autoimmune diseases; dehydrated and prepared culture media, collection and transport systems, instrumentation, and consumables; human leukocyte antigen typing and testing for organ transplant market; and healthcare products. Its Laboratory Products and Biopharma Services segment provides laboratory products, research and safety market channel, and pharma services and clinical research. It offers products and services through a direct sales force, customer-service professionals, electronic commerce, and third-party distributors under Thermo Scientific; Applied Biosystems; Invitrogen; Fisher Scientific; Unity Lab Services; and Patheon and PPD. Thermo Fisher Scientific Inc. was founded in 1956 and is headquartered in Waltham, Massachusetts.
Pin risk into expiration, dealer positioning, liquidity checks for large orders — all of it starts with knowing where TMO open interest is concentrated. Our scanner maps Thermo Fisher Scientific 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 Thermo Fisher Scientific Inc's options open interest as the signal it is, not as an afterthought.
| 710.00 | 0.70 | 2.60 | 1.65 | 31% | +0.1208 | 64 |
| 720.00 | 0.20 | 7.10 | 3.65 | 47% | +0.1652 | 46 |
| 700.00 | 1.50 | 3.60 | 2.55 | 28% | +0.1830 | 42 |
| 650.00 | 24.00 | 29.20 | 26.60 | 23% | +0.8923 | 31 |
| 690.00 | 0.60 | 8.20 | 4.40 | 27% | +0.2884 | 18 |
| 667.50 | 4.70 | 11.70 | 8.20 | 32% | -0.3847 | 200 |
| 665.00 | 2.50 | 10.00 | 6.25 | 30% | -0.3403 | 62 |
| 570.00 | — | 6.80 | 6.80 | 115% | -0.1219 | 60 |
| 560.00 | — | 6.70 | 6.70 | 123% | -0.1137 | 28 |
| 610.00 | — | 7.00 | 7.00 | 82% | -0.1661 | 20 |
As of September 25, 2026
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