Orion S.A. Common Shares (OEC) by event type

OEC moves most on analyst upgrades — a median of +1.37% at 30 minutes across 15 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the OEC overview →

By event type

How OEC reacts across 3 measured event types.

EventEventsMedian 30-min% positiveMedian to close
Analyst upgrades
80 of 2,717
15+1.37%60%+3.93%
Analyst downgrades
436 of 2,603
22+0.45%64%-0.65%
Rating reiterations
654 of 3,522
23+0.14%57%-1.04%

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 OEC 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 → · OEC overview →

Other Basic Materials names, measured the same way

TickerEventsMedian 30-min% positive
Tecogen Inc. (TGEN)2180.00%39%
CONSOL Energy Inc. (CEIX)216-0.44%39%
American Vanguard Corporation ($0.10 Par Value) (AVD)213+0.21%53%
BIOLARGO INC (BLGO)2100.00%48%

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.