Altair Engineering Inc. - Class A (ALTR) by event type
ALTR moves most on analyst downgrades — a median of -0.17% at 30 minutes across 16 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the ALTR overview →
How ALTR reacts across 2 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst downgrades 1,841 of 2,603 | 16 | -0.17% | 31% | -0.38% |
| Rating reiterations 1,300 of 3,522 | 26 | +0.03% | 58% | +0.02% |
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. 2 further classes were observed with fewer than 10 measured events and are not published.
That’s how ALTR usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst downgrades → · Rating reiterations → · ALTR overview →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| ELECTRO SCIENTIFIC (ESIO) | 658 | 0.00% | 50% |
| Wireless Telecom Group, Inc. (WTT) | 658 | 0.00% | 43% |
| Ciena Corporation (CIEN) | 652 | -0.02% | 49% |
| CYREN Ltd. - Ordinary Shares (CYRN) | 652 | 0.00% | 36% |
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.