MRCY Short Volume
Mercury Systems, Inc. (MRCY) operates in the Industrials sector, specifically the Aerospace & Defense industry, with a market capitalization near $6.67B, listed on NASDAQ, employing roughly 2,117 people, carrying a beta of 1.00 to the broader market. Mercury Systems, Inc. Led by William L. Ballhaus, public since 1998-01-30.
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
- 2026-08-14
- Short Volume
- 75.5K
- Total Volume
- 126.6K
- Short %
- 59.60%
- 30-Day Avg Short %
- 59.60%
Showing 30 days of FINRA short volume data for Mercury Systems, Inc..
Learn how short volume is reported and how to read the data →
MRCY most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| PUT | $100.00 | Aug 21, 2026 | 1.6K | 416 | 143.6% | $4.00 | $4.30 |
| PUT | $90.00 | Aug 21, 2026 | 1.1K | 1.8K | 142.8% | $1.40 | $1.80 |
Top 2 contracts from the institutional-grade nightly options scan; ranked by volume within the broader S&P 500/400/600 + ETF universe.
Frequently asked MRCY short volume questions
- What is the daily MRCY short volume?
- As of Aug 14, 2026, Mercury Systems, Inc. (MRCY) short volume is 75.5K shares against 126.6K total reported volume, or 59.60% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is MRCY 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 MRCY 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.