Why is a particular stock unavailable for trading during Extended Hours?

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• How can I place an order for Extended Hours Trading?

  You can make a trade eligible for execution during extended hours by turning on the toggle for it when placing an order. You always retain control of the toggle (which remains off by default) for each order you enter.

• Why is my limit order for Extended Hours getting canceled at the end of the day?

  Both limit and market orders that are eligible for execution in Extended Hours will be canceled at the end of the after-hours session (at 8:00 PM ET) if they are not fully executed during any trading session in the day.

• Will my Extended Hours order get executed even if the US Markets are closed (outside core-market hours)?

  Once an Extended Hours order is placed, it will attempt to be executed in the current trading session. For example, if the order is placed during the pre-market session, it will attempt to be executed during the pre-market session. If the order is ...

• Can I place stop orders during Extended Hours?

  We currently do not support stop orders that are eligible for execution during Extended Hours.

• Why is there a difference in the stock price during pre-market/after-hours sessions compared to when the market is open (during core-market hours)?

  The price during the Extended Hours market is the best price available across all the participating Electronic Markets, which may differ from the last close price during core-market hours due to changes in information available from news events, ...