QLYS Short Volume
Qualys, Inc. (QLYS) operates in the Technology sector, specifically the Software - Infrastructure industry, with a market capitalization near $4.34B, listed on NASDAQ, employing roughly 2,443 people, carrying a beta of 0.65 to the broader market. Qualys, Inc. Led by Sumedh S. Thakar, public since 2012-09-28.
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
- 2026-06-30
- Short Volume
- 480.9K
- Total Volume
- 709.8K
- Short %
- 67.75%
- 30-Day Avg Short %
- 73.54%
Showing 30 days of FINRA short volume data for Qualys, Inc..
Learn how short volume is reported and how to read the data →
QLYS most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $165.00 | Aug 21, 2026 | 650 | 100 | 53.4% | $2.65 | $3.80 |
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 QLYS short volume questions
- What is the daily QLYS short volume?
- As of Jun 30, 2026, Qualys, Inc. (QLYS) short volume is 480.9K shares against 709.8K total reported volume, or 67.75% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is QLYS 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 QLYS 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.