Iridium Communications Inc (IRDM) by event type
IRDM moves most on analyst downgrades — a median of -0.18% at 30 minutes across 24 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the IRDM overview →
How IRDM reacts across 3 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades 1,244 of 2,717 | 10 | +0.04% | 50% | -0.72% |
| Analyst downgrades 1,848 of 2,603 | 24 | -0.18% | 42% | +0.50% |
| Rating reiterations 2,812 of 3,522 | 35 | -0.16% | 46% | +0.03% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The rank under each event type orders every name measured for it by median 30-min reaction, most positive first — so a low rank on a downgrade means this name falls harder than most, not that it moves less. Names with an identical median share a rank; a name the cross-section does not carry shows no rank rather than a guessed one. 3 further classes were observed with fewer than 10 measured events and are not published.
That’s how IRDM usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · Rating reiterations → · IRDM overview →
Other Communication Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| PARETEUM CORPORATION (TEUM) | 683 | -0.42% | 40% |
| Mobile TeleSystems Public Joint Stock Company American Depositary Shares (Each representing 2 Shares of) (MBT) | 679 | 0.00% | 46% |
| Roku, Inc. - Class A (ROKU) | 641 | +0.19% | 54% |
| InterDigital, Inc. (IDCC) | 636 | -0.03% | 46% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.