MRNA Short Volume
Moderna, Inc. (MRNA) operates in the Healthcare sector, specifically the Biotechnology industry, with a market capitalization near $76.41B, listed on NASDAQ, employing roughly 4,700 people, carrying a beta of 0.90 to the broader market. Moderna, Inc. Led by Stéphane Bancel, public since 2018-12-07.
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
- 2026-09-30
- Short Volume
- 5.2M
- Total Volume
- 9.0M
- Short %
- 57.72%
- 30-Day Avg Short %
- 59.89%
Showing 30 days of FINRA short volume data for Moderna, Inc..
Learn how short volume is reported and how to read the data →
MRNA most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $192.50 | Oct 2, 2026 | 1.4K | 170 | 93.1% | $4.45 | $4.85 |
Top 1 contracts from the institutional-grade nightly options scan; ranked by volume within the broader S&P 500/400/600 + ETF universe.
Frequently asked MRNA short volume questions
- What is the daily MRNA short volume?
- As of Sep 30, 2026, Moderna, Inc. (MRNA) short volume is 5.2M shares against 9.0M total reported volume, or 57.72% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is MRNA 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 MRNA 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.