MGNI Short Volume
Magnite, Inc. (MGNI) operates in the Communication Services sector, specifically the Advertising Agencies industry, with a market capitalization near $1.85B, listed on NASDAQ, employing roughly 905 people, carrying a beta of 2.32 to the broader market. Magnite, Inc. Led by Michael G. Barrett, public since 2014-04-02.
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
- 344.3K
- Total Volume
- 639.4K
- Short %
- 53.85%
- 30-Day Avg Short %
- 45.45%
Showing 30 days of FINRA short volume data for Magnite, Inc..
Learn how short volume is reported and how to read the data →
Frequently asked MGNI short volume questions
- What is the daily MGNI short volume?
- As of May 15, 2026, Magnite, Inc. (MGNI) short volume is 344.3K shares against 639.4K total reported volume, or 53.85% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is MGNI 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 MGNI 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.