Alpine Immune Sciences, Inc. (ALPN) by event type
ALPN moves most on coverage initiations — a median of -1.09% at 30 minutes across 13 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the ALPN overview →
How ALPN reacts across 3 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst downgrades 783 of 2,603 | 14 | +0.20% | 100% | +0.34% |
| Coverage initiations 2,125 of 2,283 | 13 | -1.09% | 31% | -0.56% |
| Rating reiterations 464 of 3,522 | 23 | +0.20% | 78% | +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 ALPN usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst downgrades → · Coverage initiations → · Rating reiterations → · ALPN overview →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Exicure, Inc. (XCUR) | 173 | 0.00% | 49% |
| Aytu BioPharma, Inc. (AYTU) | 172 | -0.14% | 40% |
| NuCana plc - American Depositary Shares (NCNA) | 171 | -1.28% | 40% |
| UCB SA NPV (UCBJF) | 171 | 0.00% | 3% |
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.