ONLN Short Volume
ProShares - Online Retail ETF (ONLN) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $63.1M, listed on AMEX, carrying a beta of 1.37 to the broader market. Under typical market conditions, a minimum of 80% of the fund's total holdings will be committed to the securities comprising its benchmark index. public since 2018-07-13.
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
- 2026-08-14
- Short Volume
- 107
- Total Volume
- 1.6K
- Short %
- 6.57%
- 30-Day Avg Short %
- 20.48%
Showing 30 days of FINRA short volume data for ProShares - Online Retail ETF.
Learn how short volume is reported and how to read the data →
Frequently asked ONLN short volume questions
- What is the daily ONLN short volume?
- As of Aug 14, 2026, ProShares - Online Retail ETF (ONLN) short volume is 107 shares against 1.6K total reported volume, or 6.57% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is ONLN 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 ONLN 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.