Healthcare Sector

MRK

Market Tracker

  • MRK (Selected)

    Merck & Co., Inc.
  • MRK#

    Merck & Co., Inc. (MRK
  • MRKR

    Marker Therapeutics, Inc.

MRK Most Active Options Strike Prices Whale BUY Activity - 5 day

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Represents the strikes that had the highest premium of whale flow (on the ASK side) over the past 5 trading days.

MRK Most Active Options Strike Prices Whale SALES Activity - 5 day

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Represents the strikes that had the highest premium of whale flow (on the BID side) over the past 5 trading days.

MRK Open Interest Trend

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Total Open Interest of Calls & Puts across all strikes and expirations over the past 16 trading days.

MRK Largest 1-Day Open Interest Movements

Expires Type Strike OI Change Percent
01/16/2026 PUT $110.00 2,838 +1,018 +55.93%
12/26/2025 CALL $102.00 983 +780 +384.24%
02/20/2026 CALL $100.00 3,728 +582 +18.50%
09/18/2026 PUT $90.00 1,293 +304 +30.74%
12/19/2025 CALL $103.00 1,255 +266 +26.90%
12/19/2025 CALL $102.00 3,040 +205 +7.23%
09/18/2026 CALL $95.00 697 -112 -13.84%
12/19/2025 CALL $99.00 683 -122 -15.16%
01/15/2027 PUT $90.00 2,851 -138 -4.62%
01/16/2026 CALL $100.00 25,257 -481 -1.87%
01/16/2026 CALL $110.00 10,941 -520 -4.54%
01/16/2026 CALL $105.00 12,359 -1,043 -7.78%

Contracts with largest changes in open interest from the previous trading day to the current/most recent.

MRK Major Holders

Name Pct Held Shares Total
Vanguard Total Stock Market Index Fund 3.04% 77.07M 8.28B
Vanguard 500 Index Fund 2.31% 58.61M 6.3B
Fidelity 500 Index Fund 1.09% 27.79M 2.99B
SPDR S&P 500 ETF Trust 1.08% 27.45M 2.95B
iShares Core S&P 500 ETF 0.89% 22.63M 2.43B
Vanguard Index-Value Index Fund 0.86% 21.91M 2.35B
Select Sector SPDR Fund-Health Care 0.81% 20.59M 2.21B
Vanguard Specialized-Health Care Fund 0.72% 18.31M 1.97B
Vanguard Institutional Index Fund-Institutional Index Fund 0.70% 17.77M 1.91B
Schwab Strategic Tr-Schwab U.S. Dividend Equity ETF 0.68% 17.38M 1.87B

MRK News

  • BTK Inhibitors Clinical Trial Pipeline Accelerates as 30+ Pharma Companies Rigorously Develop Drugs for Market Entry | DelveInsight

    12/17 02:00 pm

    GlobeNewswire Inc.

    Read more
  • The Ultimate High-Yield Drug Stock to Buy With $1,000 Right Now

    12/17 09:15 am

    The Motley Fool

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  • Should You Buy the 5 Highest-Paying Dividend Stocks in the Dow Jones Before 2026?

    12/16 01:07 pm

    The Motley Fool

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  • Here's How Many Shares of SCHD You'd Need for $1,000 in Yearly Dividends

    12/16 08:17 am

    The Motley Fool

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  • Gilead's Experimental Combo Tablet For HIV Treatment Hits Primary Goal

    12/15 01:15 pm

    Benzinga

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  • Should You Forget Teva Pharmaceutical and Buy These Unstoppable Stocks Instead?

    12/14 04:27 pm

    The Motley Fool

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  • Sterile Bioprocess Filtration Market to Hit USD 21.20 Billion by 2032, Driven by Rising Biologics Production and Adoption of Single Use Filtration Technologies - SNS Insider

    12/14 09:58 am

    GlobeNewswire Inc.

    Read more
  • Immuno-oncology Clinical Trials Market Projected to Reach USD 23.63 Billion by 2032 at a CAGR of 12.37% - SNS Insider

    12/14 09:32 am

    GlobeNewswire Inc.

    Read more
  • Want Decades of Passive Income? Buy This Index Fund and Hold It Forever.

    12/14 06:15 am

    The Motley Fool

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  • Women’s Healthcare Market Worth USD 46.76 Billion by 2033 Driven by Rising Demand for Reproductive, Preventive, and Digital Health Solutions – SNS Insider

    12/13 09:10 pm

    GlobeNewswire Inc.

    Read more
  • Here Are 2 Affordable Healthcare Stocks to Buy Heading Into 2026

    12/12 01:23 pm

    The Motley Fool

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  • Gestational Diabetes Market to Reach USD 22.58 Billion by 2034, Driven by Rising Awareness and Rapid Innovations

    12/11 11:00 am

    GlobeNewswire Inc.

    Read more
  • MAIA Takes Aim at a $50B Immunotherapy Market with Breakthrough Telomere-Targeting Approach

    12/10 03:00 pm

    GlobeNewswire Inc.

    Read more
  • Drugmakers Briefed As Vaccine Skeptics Like RFK Jr. Probe RSV Therapy Risks

    12/09 12:30 pm

    Benzinga

    Read more
  • Here's 1 Major Catalyst Behind Merck Stock's Recent 3.8% Bump

    12/09 12:15 pm

    The Motley Fool

    Read more
  • Ligand Hosts 2025 Investor Day and Introduces 2026 Guidance

    12/09 08:00 am

    GlobeNewswire Inc.

    Read more
  • Merck's Stock is Suddenly Soaring, but Is the Struggling Healthcare Giant a Buy?

    12/07 08:15 am

    The Motley Fool

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  • Do These 3 Healthcare Stocks Need a Checkup?

    12/05 05:05 pm

    The Motley Fool

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  • Trading Near Its 52-Week Low, Is Summit Therapeutics a Good Stock to Buy Right Now?

    12/05 02:05 pm

    The Motley Fool

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  • Is This Pharmaceutical Giant a Buy After a Major Acquisition?

    12/05 01:05 pm

    The Motley Fool

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  • Automated Pharmacy Compounding Systems Market Growing Toward USD 5.27 Billion in 2035

    12/05 11:00 am

    GlobeNewswire Inc.

    Read more
  • 3 Top ETFs I Plan to Pile Into in December to Boost My Passive Income in 2026

    12/04 07:15 am

    The Motley Fool

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  • AstraZeneca, GSK Among Executives Asked To Help Redesign UK Pricing Rules-Report

    12/03 01:24 pm

    Benzinga

    Read more
  • Vaccine Development Company Landscape Report 2025: Recent Expansions, Partnerships and Collaborations, Big Pharma Initiatives and Cost Price Analysis

    12/02 05:37 am

    GlobeNewswire Inc.

    Read more
  • Cell Culture Microcarriers Market Size Leads at 8.54% CAGR by 2034 – Towards Healthcare

    12/01 12:00 pm

    GlobeNewswire Inc.

    Read more
  • 3 Non-AI Stocks to Buy: MRK, UPS, CVX

    11/30 01:16 am

    The Motley Fool

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  • Geriatric Care Services Market is expected to generate a revenue of USD 2.03 Billion by 2032, Globally, at 7.98% CAGR: Verified Market Research®

    11/27 11:50 pm

    GlobeNewswire Inc.

    Read more
  • Asthma and COPD Medicines Market Size to Lead USD 19.32 Bn by 2035

    11/26 12:00 pm

    GlobeNewswire Inc.

    Read more
  • Chronic Refractory Cough Market is Expected to Boom by 2034 Driven by Advancements in Treatment Options | DelveInsight

    11/24 02:00 pm

    GlobeNewswire Inc.

    Read more
  • Pfizer's New mRNA Flu Vaccine Outperforms Traditional Shot Against Predominant Strains

    11/21 11:48 am

    Benzinga

    Read more
  • Healthcare Rotation Underway: 3 Stocks Leading the Charge

    11/19 10:37 am

    Investing.com

    Read more
  • Is Recursion Pharmaceuticals a Meme Stock?

    11/19 09:13 am

    The Motley Fool

    Read more
  • Merck's Winrevair Success Extends Beyond Pulmonary Hypertension, Showing Promise In Complex Heart Condition

    11/18 01:42 pm

    Benzinga

    Read more
  • Cell Harvesting Market to Reach USD 20.08 Billion, Growing at a Strong 12.95% CAGR by 2034

    11/17 12:00 pm

    GlobeNewswire Inc.

    Read more
  • 1 Incredible Reason to Buy LLY's Stock in November

    11/13 05:25 am

    The Motley Fool

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  • Is the Schwab U.S. Dividend Equity ETF the "Ultimate Retirement Fund" for Investors?

    11/13 05:08 am

    The Motley Fool

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  • Cell Expansion Market Size to Hit USD 77.08 Billion by 2034

    11/13 03:49 am

    GlobeNewswire Inc.

    Read more
  • KRAS Inhibitors Market to Witness Explosive Growth at a CAGR of 35% During the Forecast Period (2025–2034) Amid Expanding Therapeutic Landscape | DelveInsight

    11/12 02:00 pm

    GlobeNewswire Inc.

    Read more
  • Orphan Drug Market to Reach USD 621.85 Billion by 2034, Driven by Rising Rare Disease Incidence and Innovation

    11/10 12:00 pm

    GlobeNewswire Inc.

    Read more
  • Is the Schwab U.S. Dividend Equity ETF a Buy Now?

    11/08 09:31 am

    The Motley Fool

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  • 3 Dirt Cheap Stocks to Buy With $1,000 Right Now

    11/07 08:15 am

    The Motley Fool

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  • Should You Buy the 3 Highest-Paying Dividend Stocks in the Dow Jones?

    11/04 05:30 am

    The Motley Fool

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  • Organoids Market to Reach USD 381.7 Million by 2034, Expanding at a Robust 18.5% CAGR | Reports Towards Healthcare

    11/03 09:00 am

    GlobeNewswire Inc.

    Read more
  • Adagene Announces First Patient Dosed in Randomized Dose Optimization Cohort of the Phase 2 Study of Muzastotug (ADG126) in Combination with KEYTRUDA® (pembrolizumab) in Microsatellite Stable Colorectal Cancer

    10/31 07:00 am

    GlobeNewswire Inc.

    Read more
  • Kuick Research Releases Landmark Study On US Orphan Drug Rare Disease Market Highlighting Investment And Innovation Opportunities Through 2030

    10/31 06:19 am

    Benzinga

    Read more
  • Merck Ready For Larger Than $15 Billion Deals, Raises Annual Profit Outlook

    10/30 12:24 pm

    Benzinga

    Read more
  • Cell-based Assays Market Size to Reach USD 35.34 Billion by 2032, Driven by Demand for Drug Discovery and Advanced Biotechnology Research – SNS Insider

    10/30 04:59 am

    GlobeNewswire Inc.

    Read more
  • Pharmaceutical Market to Reach USD 3,033.21 Billion by 2034 Driven by Rising Geriatric Population

    10/29 11:00 am

    GlobeNewswire Inc.

    Read more
  • Merck's New Cancer Therapy Combo Shows Significant Edge Over Rivals In Renal Cancer

    10/28 01:40 pm

    Benzinga

    Read more
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