JMBS Short Volume
Janus Henderson Mortgage-Backed Securities ETF (JMBS) operates in the Financial Services sector, specifically the Asset Management - Bonds industry, with a market capitalization near $6.76B, listed on AMEX, carrying a beta of 1.20 to the broader market. The Janus Henderson Mortgage-Backed Securities ETF (JMBS) is designed to achieve its investment goals by concentrating its holdings primarily in debt securities linked to mortgages. public since 2018-09-13.
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
- 166.4K
- Total Volume
- 491.3K
- Short %
- 33.86%
- 30-Day Avg Short %
- 48.63%
Showing 30 days of FINRA short volume data for Janus Henderson Mortgage-Backed Securities ETF.
Learn how short volume is reported and how to read the data →
Frequently asked JMBS short volume questions
- What is the daily JMBS short volume?
- As of Jun 30, 2026, Janus Henderson Mortgage-Backed Securities ETF (JMBS) short volume is 166.4K shares against 491.3K total reported volume, or 33.86% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is JMBS 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 JMBS 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.