What is the odd lot NBBO?

The odd lot NBBO (National Best Bid and Offer) displays the best odd lot bid and best odd lot offer priced inside the standard (round lot) NBBO. It represents better prices available in the market from orders that are smaller than a round lot…

Yes. To route an order to IBKRATS via the API, you need to set the IBApi::Contract::Exchange field to "IBKRATS" and IBApi::Order::NotHeld…

Currently, the IBKR ATS only supports US Stock orders for stocks trading over USD 1.00. 

Find out more in the IBKR ATS order page. …

Clients can direct non-marketable U.S. stock orders to the IBKR Alternative Trading System (or ATS) to add liquidity. Orders directed to IBKR ATS are automatically tagged as "not held" orders, and are posted in IBKR's order book where incoming SmartRouted orders from other IBKR customers are eligible to take liquidity by trading against them…

You can see that the order is being held at IBKR ATS using the mouse-over order status feature. To activate mouse-over order status help, go to Global Configuration (Edit menu in Classic; File menu in Mosaic) and in the left panel select Display…

Currently (as of 7/1/2021) the following order types can be used to route non-marketable US Stock orders to IBKR ATS:

• Limit
• Relative…

 In Mosaic Order Entry, open the "advanced" drop-down and select IBKRATS as the destination. In the Classic layout, use the Destination field in the order line to select IBKRATS. IBKR ATS supports limited order types…

Yes, you can route orders to IBKR ATS using BasketTrader, ScaleTrader, and the Accumulate/Distribute algo…

Currently you can route orders to IBKR ATS from within ScaleTrader and the Accumulate/Distribute algo. …