August 31, 2026 · NDA filing
KPTI NDA filing: a positive outcome, +10.2%
On August 31, 2026, Karyopharm Therapeutics Inc. reached its NDA filing. The result was a positive outcome, and the stock moved +10.2% in the window around the event.
The move
$1.87
1d before
$2.06
Event day
$1.85
1d after
$1.79
5d after
Our prediction vs. the result
CatalystAlert called this one neutral (+0.0% expected); the stock actually moved +10.2%. Model confidence at the time: 35%.
See the full scored track recordPre-catalyst setup
-2.6%
30-day run-up
8712%
30-day volatility
0.3×
volume spike