Order Efficiency Ratio

While Interactive Brokers’ API offerings do maintain their own pacing limitations, Interactive Brokers as a whole maintains an order pacing limitation. This is known as the Order Efficiency Ratio. While this does not typically effect regular traders, automated trading systems may be impacted. This is because OER does not necessarily impact a lower volume of trades, but will effect those who submit thousands of orders without regular execution.

More information about measuring and understanding the order efficiency ratio can be found in our Order Management Overview article.