SIRI Short Volume
Sirius XM Holdings Inc. (SIRI) operates in the Communication Services sector, specifically the Broadcasting industry, with a market capitalization near $9.59B, listed on NASDAQ, employing roughly 5,119 people, carrying a beta of 0.96 to the broader market. Sirius XM Holdings Inc. Led by Jennifer C. Witz, public since 1994-09-13.
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
- 831.4K
- Total Volume
- 1.4M
- Short %
- 59.91%
- 30-Day Avg Short %
- 66.81%
Showing 30 days of FINRA short volume data for Sirius XM Holdings Inc..
Learn how short volume is reported and how to read the data →
SIRI most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $33.00 | Sep 18, 2026 | 1.5K | 75.4K | 34.3% | $0.12 | $0.14 |
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 SIRI short volume questions
- What is the daily SIRI short volume?
- As of Aug 14, 2026, Sirius XM Holdings Inc. (SIRI) short volume is 831.4K shares against 1.4M total reported volume, or 59.91% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is SIRI 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 SIRI 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.