How can I remove a canceled order that is stuck on my screen in pink status?
The pink status indicates that you have sent a request to cancel the order, but have not yet received cancel confirmation from the order destination. At this point your order is not confirmed canceled. You may still receive an execution while your cancellation request is pending.
The most frequent cause of this issue is sending a cancel request to an exchange that is not currently open. For example, you have an open limit order that is at the NYSE. You send a cancel on that order at 16:05 EST, when the NYSE is closed. Their computers do not electronically respond, therefore IB can't confirm the cancel or clear the order. This example holds true for nearly all exchanges.
Another cause is an order being "stuck" electronically on your TWS system. In these cases traders will have to wait for the system to go through its "daily reset" for the order to disappear from the trading application.
*If you have an order in this status on your screen, you should contact IB immediately. If we are able to see the order in our system (and for orders that have been requested canceled by the account holder, but not acknowledged by the exchange, IB can usually see the orders in our system) we can attempt to call the exchange and request a confirmation of cancellation. Unfortunately in many cases, most notably with the NYSE, the exchanges will not answer their phones after they are officially closed for trading. If the exchange can't be contacted, the order will remain in this status until their computers send the cancel confirmation. As stated above: At this point your order is not confirmed canceled. You may still receive an execution while your cancellation request is pending.