QSI Short Volume
Quantum-Si incorporated (QSI) operates in the Healthcare sector, specifically the Biotechnology industry, with a market capitalization near $169.1M, listed on NASDAQ, employing roughly 149 people, carrying a beta of 3.17 to the broader market. Quantum-Si incorporated operates within the life sciences sector, focusing on the creation of an advanced platform for individual molecule detection. Led by Jeffrey Alan Hawkins, public since 2020-11-13.
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
- 712.4K
- Total Volume
- 1.8M
- Short %
- 38.83%
- 30-Day Avg Short %
- 43.15%
Showing 30 days of FINRA short volume data for Quantum-Si incorporated.
Learn how short volume is reported and how to read the data →
Frequently asked QSI short volume questions
- What is the daily QSI short volume?
- As of Jun 30, 2026, Quantum-Si incorporated (QSI) short volume is 712.4K shares against 1.8M total reported volume, or 38.83% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is QSI 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 QSI 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.