Ionis Pharmaceuticals, Inc. (IONS) by event type
IONS moves most on coverage initiations — a median of -0.48% at 30 minutes across 24 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the IONS overview →
How IONS reacts across 6 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades 2,063 of 2,717 | 46 | -0.24% | 39% | +0.05% |
| Analyst downgrades 1,969 of 2,603 | 12 | -0.27% | 50% | -0.63% |
| Coverage initiations 1,900 of 2,283 | 24 | -0.48% | 46% | +0.24% |
| Rating reiterations 1,085 of 3,522 | 199 | +0.06% | 52% | -0.03% |
| Price-target raises 1,455 of 1,790 | 56 | -0.14% | 43% | -0.27% |
| Price-target cuts 914 of 1,527 | 20 | -0.05% | 45% | -0.54% |
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 IONS 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 → · IONS overview →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Sinovac Biotech, Ltd. - Ordinary Shares (Antigua/Barbudo) (SVA) | 814 | 0.00% | 46% |
| Atara Biotherapeutics, Inc. (ATRA) | 813 | -0.27% | 45% |
| Applied Genetic Technologies Corporation (AGTC) | 805 | 0.00% | 45% |
| KERYX BIOPHARMACEUTICALS (KERX) | 804 | 0.00% | 51% |
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.