MDY Short Volume
State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) operates in the Financial Services sector, specifically the Asset Management - Global industry, with a market capitalization near $26.57B, listed on AMEX, carrying a beta of 1.04 to the broader market. This fund, the State Street SPDR S&P MIDCAP 400 ETF Trust, strives to offer investment returns that, before factoring in costs, generally reflect the capital appreciation and dividend income performance of the S&P MidCap 400 Index. public since 1995-05-04.
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
- 178.5K
- Total Volume
- 265.9K
- Short %
- 67.13%
- 30-Day Avg Short %
- 72.85%
Showing 30 days of FINRA short volume data for State Street SPDR S&P MIDCAP 400 ETF Trust.
Learn how short volume is reported and how to read the data →
Frequently asked MDY short volume questions
- What is the daily MDY short volume?
- As of Jun 30, 2026, State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) short volume is 178.5K shares against 265.9K total reported volume, or 67.13% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is MDY 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 MDY 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.