VMBS Short Volume
Vanguard Mortgage-Backed Securities ETF (VMBS) operates in the Financial Services sector, specifically the Asset Management - Bonds industry, with a market capitalization near $17.40B, listed on NASDAQ, carrying a beta of 1.12 to the broader market. This ETF is designed to deliver a consistent and reasonable stream of current income for its investors. public since 2009-11-23.
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
- 2026-08-28
- Short Volume
- 507.7K
- Total Volume
- 722.6K
- Short %
- 70.26%
- 30-Day Avg Short %
- 70.25%
Showing 30 days of FINRA short volume data for Vanguard Mortgage-Backed Securities ETF.
Learn how short volume is reported and how to read the data →
Frequently asked VMBS short volume questions
- What is the daily VMBS short volume?
- As of Aug 28, 2026, Vanguard Mortgage-Backed Securities ETF (VMBS) short volume is 507.7K shares against 722.6K total reported volume, or 70.26% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is VMBS 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 VMBS 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.