Halozyme Therapeutics, Inc. (HALO) by event type

HALO moves most on analyst downgrades — a median of -0.44% at 30 minutes across 27 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the HALO overview →

By event type

How HALO reacts across 4 measured event types.

EventEventsMedian 30-min% positiveMedian to close
Analyst upgrades
970 of 2,717
19+0.13%53%-1.22%
Analyst downgrades
2,163 of 2,603
27-0.44%33%-1.35%
Rating reiterations
2,369 of 3,522
123-0.07%46%+0.07%
Price-target raises
1,336 of 1,790
34-0.10%41%+0.07%

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 HALO usually reacts — get an email when it moves on news →
Keep exploring

Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · Rating reiterations → · Price-target raises → · HALO overview →

Other Healthcare names, measured the same way

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.