Amprius Technologies, Inc. (AMPX) by event type
AMPX moves most on coverage initiations — a median of -0.73% at 30 minutes across 26 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the AMPX overview →
How AMPX reacts across 2 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Coverage initiations 2,028 of 2,283 | 26 | -0.73% | 35% | -1.00% |
| Rating reiterations 115 of 3,522 | 42 | +0.60% | 62% | -0.20% |
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. 4 further classes were observed with fewer than 10 measured events and are not published.
That’s how AMPX usually reacts — get an email when it moves on news →Every name measured for these event types: Coverage initiations → · Rating reiterations → · AMPX overview →