What is the IBUSOPT routing destination?

To route a US equity or index options order to IBUSOPT from Mosaic, set up the order in the Order Entry panel and open the "advanced" panel to select a new destination. Once you have selected IBUSOPT as the destination, available order types will be shown in the dropdown. Choose from a…

This venue is only available for IBKR clients to route US options. If you attempt to route a non-US option to IBUSOPT, the destination will not be shown in the list of available routing destinations…

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…

IBKR Option Liquidity Program allows clients to add liquidity and interact with our retail order flow by direct-routing individual US equity and index option orders to IBUSOPT. The Option Liquidity Tool makes it easy for clients to create strategies to add liquidity and interact with our retail order flow. It's available in TWS and can be accessed from the Classic layout Trading Tools menu, or from the Mosaic New Window dropdown in the Advanced Options Tools section…