ALSN Short Volume
Allison Transmission Holdings, Inc. (ALSN) operates in the Consumer Cyclical sector, specifically the Auto - Parts industry, with a market capitalization near $10.25B, listed on NYSE, employing roughly 4,000 people, carrying a beta of 0.95 to the broader market. Allison Transmission Holdings, Inc. Led by David S. Graziosi, public since 2012-03-15.
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
- 124.7K
- Total Volume
- 260.8K
- Short %
- 47.82%
- 30-Day Avg Short %
- 56.97%
Showing 30 days of FINRA short volume data for Allison Transmission Holdings, Inc..
Learn how short volume is reported and how to read the data →
ALSN most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $115.00 | Aug 21, 2026 | 1 | 609 | 956.0% | $9.10 | $12.00 |
| CALL | $120.00 | Aug 21, 2026 | 2 | 117 | 861.4% | $5.00 | $7.30 |
| CALL | $130.00 | Aug 21, 2026 | 4 | 256 | 247.6% | $0.25 | $1.50 |
Top 3 contracts from the institutional-grade nightly options scan; ranked by volume within the broader S&P 500/400/600 + ETF universe.
Frequently asked ALSN short volume questions
- What is the daily ALSN short volume?
- As of Aug 14, 2026, Allison Transmission Holdings, Inc. (ALSN) short volume is 124.7K shares against 260.8K total reported volume, or 47.82% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is ALSN 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 ALSN 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.