Jazz Pharmaceuticals plc - Ordinary Shares (JAZZ) by event type
JAZZ moves most on analyst downgrades — a median of +0.22% at 30 minutes across 19 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the JAZZ overview →
How JAZZ reacts across 6 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades 1,361 of 2,717 | 25 | 0.00% | 40% | -0.39% |
| Analyst downgrades 734 of 2,603 | 19 | +0.22% | 68% | -0.49% |
| Coverage initiations 1,616 of 2,283 | 22 | -0.17% | 27% | -0.48% |
| Rating reiterations 884 of 3,522 | 176 | +0.09% | 53% | +0.08% |
| Price-target raises 854 of 1,790 | 37 | +0.01% | 51% | +0.63% |
| Price-target cuts 1,106 of 1,527 | 26 | -0.12% | 46% | -0.24% |
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.
That’s how JAZZ usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · Coverage initiations → · Rating reiterations → · Price-target raises → · Price-target cuts → · JAZZ overview →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| ANTHERA PHARMS INC NEW (ANTH) | 546 | -0.01% | 40% |
| GENEREX BIOTECHNOLOGY (GNBT) | 546 | 0.00% | 49% |
| FLEX PHARMA (FLKS) | 541 | -0.16% | 43% |
| OSIRIS THERAPEUTICS (OSIR) | 538 | 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.