FAST Short Volume
Fastenal Company (FAST) operates in the Industrials sector, specifically the Industrial - Distribution industry, with a market capitalization near $50.25B, listed on NASDAQ, employing roughly 21,339 people, carrying a beta of 0.74 to the broader market. Fastenal Company, together with its subsidiaries, engages in the wholesale distribution of industrial and construction supplies in the United States, Canada, Mexico, North America, and internationally. Led by Daniel L. Florness, public since 1987-08-20.
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
- 538.4K
- Total Volume
- 1.2M
- Short %
- 46.25%
- 30-Day Avg Short %
- 51.17%
Showing 30 days of FINRA short volume data for Fastenal Company.
Learn how short volume is reported and how to read the data →
Frequently asked FAST short volume questions
- What is the daily FAST short volume?
- As of May 15, 2026, Fastenal Company (FAST) short volume is 538.4K shares against 1.2M total reported volume, or 46.25% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is FAST 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 FAST 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.