AstraZeneca PLC Ordinary Shares (AZN) by event type

AZN moves most on analyst downgrades — a median of +0.33% at 30 minutes across 16 measured events. Each row is measured over the last three years and read against the price at its own news timestamp. Back to the AZN overview →

By event type

How AZN reacts across 4 measured event types.

EventEventsMedian 30-min% positiveMedian to close
Analyst upgrades
1,003 of 2,717
25+0.12%56%-0.27%
Analyst downgrades
582 of 2,603
16+0.33%75%+0.48%
Coverage initiations
890 of 2,283
22+0.10%64%+0.68%
Rating reiterations
1,252 of 3,522
35+0.04%57%-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 AZN usually reacts — get an email when it moves on news →
Keep exploring

Every name measured for these event types: Analyst upgrades → · Analyst downgrades → · Coverage initiations → · Rating reiterations → · AZN overview →

Other Healthcare names, measured the same way

TickerEventsMedian 30-min% positive
MYLAN NV ORDINARY SHARES (MYL)1,701-0.13%44%
Inspire Medical Systems, Inc. (INSP)1,692+0.06%53%
Alexion Pharmaceuticals, Inc (ALXN)1,615-0.04%49%
ADMA Biologics Inc (ADMA)1,609+0.11%52%

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.