RGEN Short Volume
Repligen Corporation (RGEN) operates in the Healthcare sector, specifically the Medical - Instruments & Supplies industry, with a market capitalization near $8.29B, listed on NASDAQ, employing roughly 1,778 people, carrying a beta of 1.08 to the broader market. Repligen Corporation specializes in the creation and distribution of advanced bioprocessing technologies and integrated systems. Led by Olivier Loeillot, public since 1986-04-29.
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
- 2026-06-30
- Short Volume
- 155.2K
- Total Volume
- 500.9K
- Short %
- 30.99%
- 30-Day Avg Short %
- 53.82%
Showing 30 days of FINRA short volume data for Repligen Corporation.
Learn how short volume is reported and how to read the data →
Frequently asked RGEN short volume questions
- What is the daily RGEN short volume?
- As of Jun 30, 2026, Repligen Corporation (RGEN) short volume is 155.2K shares against 500.9K total reported volume, or 30.99% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is RGEN 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 RGEN 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.