UNF Short Volume
UniFirst Corporation (UNF) operates in the Industrials sector, specifically the Specialty Business Services industry, with a market capitalization near $4.69B, listed on NYSE, employing roughly 16,000 people, carrying a beta of 0.63 to the broader market. UniFirst Corporation provides workplace uniforms and protective work wear clothing in the United States, Europe, and Canada. Led by Steven S. Sintros, public since 1984-01-16.
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
- 80.4K
- Total Volume
- 115.9K
- Short %
- 69.40%
- 30-Day Avg Short %
- 48.79%
Showing 30 days of FINRA short volume data for UniFirst Corporation.
Learn how short volume is reported and how to read the data →
UNF most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $260.00 | Jun 18, 2026 | 0 | 348 | 23.5% | $7.00 | $9.50 |
Top 1 contracts from the ORATS-sourced nightly scan; ranked by volume within the broader S&P 500/400/600 + ETF universe.
Frequently asked UNF short volume questions
- What is the daily UNF short volume?
- As of May 15, 2026, UniFirst Corporation (UNF) short volume is 80.4K shares against 115.9K total reported volume, or 69.40% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is UNF 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 UNF 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.