In the past, I've only sold options around earnings when the earnings announcements were before the market open in the morning. So I've always had the opportunity to close the position or roll it over on the day of the earnings. But I wonder what would happen if the earnings release takes place after market close at 4PM and option goes deep ITM, thus having no extrinsic value. In such scenario, how likely will it be assigned by 5:30PM? Thus depriving me of the ability to roll it the next day.
One factor is how many days to expiration these options have. If you are selling 30 DTE + less likely an assignment and you could still roll.