GATX Short Volume
GATX Corporation (GATX) operates in the Industrials sector, specifically the Rental & Leasing Services industry, with a market capitalization near $6.38B, listed on NYSE, employing roughly 2,150 people, carrying a beta of 1.25 to the broader market. GATX Corporation operates as railcar leasing company in the United States and internationally. Led by Robert C. Lyons, public since 1920-07-01.
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
- 52.6K
- Total Volume
- 86.5K
- Short %
- 60.79%
- 30-Day Avg Short %
- 66.29%
Showing 30 days of FINRA short volume data for GATX Corporation.
Learn how short volume is reported and how to read the data →
Frequently asked GATX short volume questions
- What is the daily GATX short volume?
- As of May 15, 2026, GATX Corporation (GATX) short volume is 52.6K shares against 86.5K total reported volume, or 60.79% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is GATX 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 GATX 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.