IVOO Short Volume

Vanguard S&P Mid-Cap 400 ETF (IVOO) operates in the Financial Services sector, specifically the Asset Management - Global industry, with a market capitalization near $5.64B, listed on AMEX, carrying a beta of 1.05 to the broader market. This exchange-traded fund (ETF) primarily invests in the equity of approximately 400 medium-sized American enterprises, mirroring the composition of the S&P MidCap 400 Index. public since 2010-09-09.

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

19.9K

Total Volume

51.3K

Short %

38.74%

30-Day Avg Short %

64.76%

Showing 30 days of FINRA short volume data for Vanguard S&P Mid-Cap 400 ETF.

Learn how short volume is reported and how to read the data →

Frequently asked IVOO short volume questions

What is the daily IVOO short volume?

As of Jun 30, 2026, Vanguard S&P Mid-Cap 400 ETF (IVOO) short volume is 19.9K shares against 51.3K total reported volume, or 38.74% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.

How is IVOO 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 IVOO 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.