Geron Corporation (GERN) by event type
GERN moves most on coverage initiations — a median of +0.78% at 30 minutes across 18 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the GERN overview →
How GERN reacts across 3 measured event types.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst downgrades 1,443 of 2,603 | 13 | -0.01% | 46% | -2.24% |
| Coverage initiations 225 of 2,283 | 18 | +0.78% | 50% | +1.61% |
| Rating reiterations 1,277 of 3,522 | 47 | +0.04% | 55% | +0.67% |
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. 3 further classes were observed with fewer than 10 measured events and are not published.
That’s how GERN usually reacts — get an email when it moves on news →Every name measured for these event types: Analyst downgrades → · Coverage initiations → · Rating reiterations → · GERN overview →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Antares Pharma, Inc. (ATRS) | 951 | 0.00% | 43% |
| Sage Therapeutics, Inc. (SAGE) | 951 | -0.14% | 41% |
| Intellia Therapeutics, Inc. (NTLA) | 948 | -0.24% | 45% |
| Biohaven Ltd. Common Shares (BHVN) | 944 | -0.27% | 45% |
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.