MSTY Short Volume
YieldMax MSTR Option Income Strategy ETF (MSTY) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $1.74B, listed on AMEX, carrying a beta of 2.05 to the broader market. The YieldMax MSTR Option Income Strategy ETF (MSTY) is an actively managed exchange-traded fund that seeks to generate weekly income by selling call options or call spreads on MSTR. public since 2024-02-22.
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
- 2026-05-15
- Short Volume
- 675.7K
- Total Volume
- 1.1M
- Short %
- 58.94%
- 30-Day Avg Short %
- 50.91%
Showing 30 days of FINRA short volume data for YieldMax MSTR Option Income Strategy ETF.
Learn how short volume is reported and how to read the data →
Frequently asked MSTY short volume questions
- What is the daily MSTY short volume?
- As of May 15, 2026, YieldMax MSTR Option Income Strategy ETF (MSTY) short volume is 675.7K shares against 1.1M total reported volume, or 58.94% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is MSTY 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 MSTY 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.