Compass Minerals Intl Inc (CMP) by event type

CMP moves most on analyst upgrades — a median of -0.51% at 30 minutes across 21 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the CMP overview →

By event type

How CMP reacts across 3 measured event types.

EventEventsMedian 30-min% positiveMedian to close
Analyst upgrades
2,394 of 2,717
21-0.51%14%-2.26%
Analyst downgrades
1,130 of 2,603
14+0.05%71%-1.27%
Rating reiterations
2,473 of 3,522
16-0.08%50%-0.09%

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 CMP usually reacts — get an email when it moves on news →
Keep exploring

Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · Rating reiterations → · CMP overview →

Other Basic Materials names, measured the same way

TickerEventsMedian 30-min% positive
W.R. Grace & Co. (GRA)892+0.04%54%
Verso Corporation (VRS)891+0.01%52%
Synalloy Corporation (SYNL)8620.00%46%
GLENCORE PLC UNSP/ADR (GLNCY)841+0.00%50%

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.