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February 29, 2024 · earnings

KPTI earnings: a negative outcome, -12.8%

On February 29, 2024, Karyopharm Therapeutics Inc. reached its earnings. The result was a negative outcome, and the stock moved -12.8% in the window around the event. It had already run +50.4% in the 30 days into the catalyst — the kind of pre-event run-up that often precedes binary readouts.

The move

$19.95
1d before
$17.40
Event day
$17.77
1d after
$18.67
5d after

Pre-catalyst setup

+50.4%
30-day run-up
18242%
30-day volatility
0.6×
volume spike