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May 5, 2022 · earnings

PRTA earnings: a negative outcome, -7.2%

On May 5, 2022, PROTHENA CORP PUBLIC LTD CO reached its earnings. The result was a negative outcome, and the stock moved -7.2% in the window around the event. It had already run -19.3% in the 30 days into the catalyst — the kind of pre-event run-up that often precedes binary readouts.

The move

$31.26
1d before
$29.02
Event day
$29.79
1d after
$26.97
5d after

Pre-catalyst setup

-19.3%
30-day run-up
8511%
30-day volatility
1.0×
volume spike