FIX Short Volume
Comfort Systems USA, Inc. (FIX) operates in the Industrials sector, specifically the Engineering & Construction industry, with a market capitalization near $71.61B, listed on NYSE, employing roughly 22,700 people, carrying a beta of 1.71 to the broader market. Comfort Systems USA, Inc. Led by Brian E. Lane, public since 1997-06-27.
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
- 76.3K
- Total Volume
- 160.1K
- Short %
- 47.65%
- 30-Day Avg Short %
- 52.57%
Showing 30 days of FINRA short volume data for Comfort Systems USA, Inc..
Learn how short volume is reported and how to read the data →
Frequently asked FIX short volume questions
- What is the daily FIX short volume?
- As of May 15, 2026, Comfort Systems USA, Inc. (FIX) short volume is 76.3K shares against 160.1K total reported volume, or 47.65% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is FIX 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 FIX 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.