AVTR Short Volume
Avantor, Inc. (AVTR) operates in the Healthcare sector, specifically the Medical - Instruments & Supplies industry, with a market capitalization near $10.62B, listed on NYSE, employing roughly 13,500 people, carrying a beta of 0.94 to the broader market. Avantor, Inc. Led by Emmanuel Ligner, public since 2019-05-17.
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
- 2026-10-15
- Short Volume
- 1.0M
- Total Volume
- 2.2M
- Short %
- 46.04%
- 30-Day Avg Short %
- 51.06%
Showing 30 days of FINRA short volume data for Avantor, Inc..
Learn how short volume is reported and how to read the data →
AVTR most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $15.00 | Oct 16, 2026 | 239 | 40.5K | 22.1% | $0.70 | $0.95 |
| CALL | $13.00 | Oct 16, 2026 | 2 | 40.3K | 23.4% | $2.75 | $2.90 |
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 AVTR short volume questions
- What is the daily AVTR short volume?
- As of Oct 15, 2026, Avantor, Inc. (AVTR) short volume is 1.0M shares against 2.2M total reported volume, or 46.04% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is AVTR 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 AVTR 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.