IRDM Short Volume
Iridium Communications Inc. (IRDM) operates in the Communication Services sector, specifically the Telecommunications Services industry, with a market capitalization near $4.60B, listed on NASDAQ, employing roughly 873 people, carrying a beta of 0.89 to the broader market. Iridium Communications Inc. Led by Matthew J. Desch, public since 2008-03-20.
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
- 2026-06-30
- Short Volume
- 534.6K
- Total Volume
- 2.2M
- Short %
- 23.93%
- 30-Day Avg Short %
- 63.87%
Showing 30 days of FINRA short volume data for Iridium Communications Inc..
Learn how short volume is reported and how to read the data →
IRDM most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $60.00 | Jul 17, 2026 | 2.5K | 1.7K | 41.6% | $0.40 | $0.55 |
| CALL | $55.00 | Jul 17, 2026 | 1.9K | 2.4K | 33.5% | $1.25 | $1.70 |
| CALL | $50.00 | Aug 21, 2026 | 1.6K | 17.7K | 34.0% | $5.90 | $6.20 |
Top 3 contracts from the institutional-grade nightly options scan; ranked by volume within the broader S&P 500/400/600 + ETF universe.
Frequently asked IRDM short volume questions
- What is the daily IRDM short volume?
- As of Jun 30, 2026, Iridium Communications Inc. (IRDM) short volume is 534.6K shares against 2.2M total reported volume, or 23.93% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is IRDM 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 IRDM 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.