MRNA Short Volume
Moderna, Inc. (MRNA) operates in the Healthcare sector, specifically the Biotechnology industry, with a market capitalization near $20.01B, listed on NASDAQ, employing roughly 5,800 people, carrying a beta of 1.06 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
- 2026-05-15
- Short Volume
- 1.3M
- Total Volume
- 2.1M
- Short %
- 62.74%
- 30-Day Avg Short %
- 56.03%
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 | $54.00 | May 22, 2026 | 9.8K | 332 | 76.5% | $0.49 | $0.55 |
| CALL | $180.00 | Jun 18, 2026 | 2 | 1.3K | 147.6% | $0.01 | $0.27 |
| CALL | $50.00 | May 22, 2026 | 10.6K | 849 | 71.4% | $1.38 | $1.51 |
Top 3 contracts from the ORATS-sourced nightly 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 May 15, 2026, Moderna, Inc. (MRNA) short volume is 1.3M shares against 2.1M total reported volume, or 62.74% 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.