In your original post you said there was no stock movement.
Yours was the stock movement.
Yours was the stock movement.
Quote from Huron678:
On 5/3, CBRX closed at 0.73. I placed a limit order with Ameritrade after hours to sell CBRX if and when it dropped to 0.65. My order went through for 0.65 at 8am the next morning. I am unaware of other orders executing at that time. CBRX then opened at 9:40 at 0.75 where it had closed the day before.
Ameritrade replied "Your limit order was executed immediately because the then-current market price was better than your limit price. If the Limit price is better than the current market price the order may seek immediate execution. Market makers may reject, at their own discretion, any limit order with a price placed considerably better than the current market price as an out-of-range order.
You may have intended to place a Stop Market or Stop Limit order. For + Extended Hours orders, stops are not able to be placed. Only unconditional limit orders are accepted."