An order placed during an extended-hours trading session is good only for the session during which the order was placed. If an order is not executed during a specific extended-hours session, the order expires at the end of the session. It does not roll into the next regular or extended-hours session. Orders not yet executed can still be canceled before the close of a session, in the same way as during regular market hours. Orders executed during an extended-hours session are considered to have been executed during that day's regular session for settlement and clearing purposes.
Trade settlement remains the same for extended-hours trades as for regular market trades.
The settlement date is three business days after the date on which the transaction occurred. Margin requirements Margin requirements remain the same as during regular trading hours. A stock's margin eligibility during extended-hours sessions is computed using the closing stock price of the previous regular market session. Risks associated with Extended-Hours Trading All securities trading involves risks. You may only enter limit orders during the extended-hours trading sessions.