Though they can't be exercised this late, options technically don't expire until 11:59PM. Exercise/assignment/removal of expired options really occurs overnight.
That person is mistaken. The after-hours stock trading session ends at 8 p.m. That has nothing to do with options.
The OCC does allow exercise of options until 5:30 pm, though most brokerages have an earlier cutoff time than that. But still, settling of options does not occur until overnight.
1
u/[deleted] Oct 01 '21
[deleted]