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May 10, 2023 · earnings

EBS earnings: a positive outcome, +11.4%

On May 10, 2023, Emergent BioSolutions Inc. reached its earnings. The result was a positive outcome, and the stock moved +11.4% in the window around the event. It had already run -27.6% in the 30 days into the catalyst — the kind of pre-event run-up that often precedes binary readouts.

The move

$9.70
1d before
$10.81
Event day
$10.51
1d after
$9.29
5d after

Pre-catalyst setup

-27.6%
30-day run-up
6832%
30-day volatility
1.3×
volume spike