MRK Short Volume
Merck & Co., Inc. (MRK) operates in the Healthcare sector, specifically the Drug Manufacturers - General industry, with a market capitalization near $317.08B, listed on NYSE, employing roughly 73,000 people, carrying a beta of 0.22 to the broader market. Merck & Co. Led by Robert Davis, public since 1978-01-13.
Short volume measures the number of shares sold short on a given day as reported by FINRA. Tracking short volume relative to total volume helps identify unusual bearish sentiment or short-squeeze potential.
- Latest Date
- 2026-06-30
- Short Volume
- 2.0M
- Total Volume
- 3.7M
- Short %
- 53.14%
- 30-Day Avg Short %
- 46.81%
Showing 30 days of FINRA short volume data for Merck & Co., Inc..
Learn how short volume is reported and how to read the data →
Frequently asked MRK short volume questions
- What is the daily MRK short volume?
- As of Jun 30, 2026, Merck & Co., Inc. (MRK) short volume is 2.0M shares against 3.7M total reported volume, or 53.14% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is MRK short volume reported?
- FINRA publishes the Daily Short Sale Volume File for trades reported to FINRA TRFs and the FINRA/Nasdaq ADF on a T+1 basis. The headline figure is the count of shares that printed at the short-sale or short-exempt tick across all reporting venues for the symbol; each exchange separately publishes its own daily short-sale data file.
- What does MRK short volume tell options traders?
- Daily short-sale flow is one input that helps disambiguate dealer-hedging activity from directional bear flow when the chain shows fresh customer call inventory. It is not a clean MM-only proxy: the headline number mixes directional shorting, options-MM delta-hedging, ETF-creation arbitrage, and convertible-arb hedging. Cross-check against gamma-exposure and OI changes for a cleaner read.