• Interactive Brokers average gross margin for 2023 was 90.97%, a 1.84% increase from 2022.
• Interactive Brokers average gross margin for 2022 was 89.33%, a 1.65% increase from 2021.
• Interactive Brokers average gross margin for 2021 was 90.83%, a 4.91% decline from 2020.

Gross margin can be defined as a company's total sales revenue minus its cost of goods sold, divided by the total sales revenue, expressed as a percentage.