Non-marketable U.S. stock orders routed to IBDARK are tagged "post only” and are held in IB's order book where incoming SmartRouted orders from other IB customers are eligible to trade against them.

To route an order to IBDARK

1.  From the market data line of a US Stock, click the Bid to create a SELL order or the Ask to create a BUY order.

2.  In the Destination field, select IBDARK.

3.  Transmit the order.

For more information on how the IBDARK order works, see the IBDARK Order Type page.