Perimeter Solutions, SA (PRM) by event type
PRM moves most on analyst upgrades — a median of +1.11% at 30 minutes across 13 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the PRM overview →
How PRM reacts across 3 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades 111 of 2,717 | 13 | +1.11% | 62% | +0.03% |
| Analyst downgrades 2,241 of 2,603 | 15 | -0.54% | 33% | -1.93% |
| Rating reiterations 666 of 3,522 | 18 | +0.13% | 56% | +0.59% |
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 PRM usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · Rating reiterations → · PRM overview →