Aehr Test Systems (AEHR) by event type
AEHR moves most on coverage initiations — a median of +2.48% at 30 minutes across 10 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the AEHR overview →
How AEHR reacts across 3 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades 129 of 2,717 | 18 | +1.00% | 72% | +4.61% |
| Analyst downgrades 2,461 of 2,603 | 14 | -1.29% | 36% | +0.44% |
| Coverage initiations 28 of 2,283 | 10 | +2.48% | 60% | +0.34% |
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. 1 further class was observed with fewer than 10 measured events and is not published.
That’s how AEHR usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · Coverage initiations → · AEHR overview →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| F5, Inc. (FFIV) | 1,237 | +0.09% | 54% |
| Photronics, Inc. (PLAB) | 1,229 | 0.00% | 50% |
| SONY CORP (SNE) | 1,213 | -0.03% | 47% |
| ARRIS INTL PLC ORDINARY SHARES (ARRS) | 1,207 | 0.00% | 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.