SIOO Short Volume
VistaShares Target 15 S&P 100 Distribution ETF (SIOO) operates in the Financial Services sector, specifically the Asset Management - Income industry, with a market capitalization near $49.5M, listed on AMEX, carrying a beta of 0.60 to the broader market. The VistaShares Target 15 S&P 100 Distribution ETF (SIOO) is an actively managed fund designed to provide investors with both a steady stream of income and long-term growth potential. Led by David Solomon, public since 2025-12-11.
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
- 2026-07-16
- Short Volume
- 1.8K
- Total Volume
- 4.9K
- Short %
- 35.93%
- 30-Day Avg Short %
- 54.28%
Showing 30 days of FINRA short volume data for VistaShares Target 15 S&P 100 Distribution ETF.
Learn how short volume is reported and how to read the data →
Frequently asked SIOO short volume questions
- What is the daily SIOO short volume?
- As of Jul 16, 2026, VistaShares Target 15 S&P 100 Distribution ETF (SIOO) short volume is 1.8K shares against 4.9K total reported volume, or 35.93% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is SIOO 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 SIOO 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.