SIOO Short Volume
VistaShares Target 15 S&P 100 Distribution ETF (SIOO) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $49.9M, listed on AMEX, carrying a beta of 0.62 to the broader market. SIOO is an actively managed ETF seeking current income and long-term capital appreciation through two strategies: investing directly or indirectly in equity securities in the S&P 100 Index, generally tracking the Indexs composition and performance, and generating income via an options portfolio, aiming for a 15% annual distribution. 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
- 2026-06-01
- Short Volume
- 10.5K
- Total Volume
- 13.0K
- Short %
- 80.84%
- 30-Day Avg Short %
- 65.80%
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 Jun 1, 2026, VistaShares Target 15 S&P 100 Distribution ETF (SIOO) short volume is 10.5K shares against 13.0K total reported volume, or 80.84% 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.