BSX Short Volume
Boston Scientific Corporation (BSX) operates in the Healthcare sector, specifically the Medical - Devices industry, with a market capitalization near $71.81B, listed on NYSE, employing roughly 53,000 people, carrying a beta of 0.62 to the broader market. Boston Scientific Corporation develops, manufactures, and markets medical devices for use in various interventional medical specialties worldwide. Led by Michael F. Mahoney, public since 1992-05-19.
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
- 1.6M
- Total Volume
- 12.4M
- Short %
- 12.88%
- 30-Day Avg Short %
- 31.10%
Showing 30 days of FINRA short volume data for Boston Scientific Corporation.
Learn how short volume is reported and how to read the data →
BSX most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $65.00 | Jan 15, 2027 | 16.9K | 608 | 44.8% | $2.55 | $2.70 |
Top 1 contracts from the institutional-grade nightly options scan; ranked by volume within the broader S&P 500/400/600 + ETF universe.
Frequently asked BSX short volume questions
- What is the daily BSX short volume?
- As of Jun 1, 2026, Boston Scientific Corporation (BSX) short volume is 1.6M shares against 12.4M total reported volume, or 12.88% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is BSX 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 BSX 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.