Arm Holdings plc - American Depositary Shares (ARM) by event type
ARM moves most on coverage initiations — a median of +1.49% at 30 minutes across 98 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the ARM overview →
How ARM reacts across 6 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades 2,406 of 2,717 | 31 | -0.53% | 42% | +1.07% |
| Analyst downgrades 2,388 of 2,603 | 25 | -0.88% | 32% | -1.56% |
| Coverage initiations 81 of 2,283 | 98 | +1.49% | 70% | -0.13% |
| Rating reiterations 2,319 of 3,522 | 210 | -0.06% | 49% | -0.18% |
| Price-target raises 235 of 1,790 | 79 | +0.19% | 54% | +0.37% |
| Price-target cuts 1,048 of 1,527 | 34 | -0.09% | 41% | -0.74% |
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.
That’s how ARM usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · Coverage initiations → · Rating reiterations → · Price-target raises → · Price-target cuts → · ARM overview →