BIB Short Volume
ProShares - Ultra Nasdaq Biotechnology (BIB) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $80.0M, listed on NASDAQ, carrying a beta of 1.16 to the broader market. ProShares Ultra Nasdaq Biotechnology seeks daily investment results, before fees and expenses, that correspond to two times (2x) the daily performance of the Nasdaq Biotechnology Index. public since 2010-04-09.
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
- 273
- Total Volume
- 4.2K
- Short %
- 6.50%
- 30-Day Avg Short %
- 32.99%
Showing 30 days of FINRA short volume data for ProShares - Ultra Nasdaq Biotechnology.
Learn how short volume is reported and how to read the data →
Frequently asked BIB short volume questions
- What is the daily BIB short volume?
- As of May 15, 2026, ProShares - Ultra Nasdaq Biotechnology (BIB) short volume is 273 shares against 4.2K total reported volume, or 6.50% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is BIB 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 BIB 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.