Interactive Brokers Group, Inc. Earnings Summary — Q3 FY2026

• Net revenues grew to $1.90 billion, driven by a 30% increase in commission revenue and a 23% rise in net interest income.
• Customer accounts saw explosive growth, increasing 34% year-over-year to 5.19 million total accounts.
• The company maintained exceptional operating efficiency with a pretax profit margin of 77% on both a GAAP and adjusted basis.
• Customer margin loans significantly expanded, rising 67% to $108.5 billion, fueling interest income growth.
• Total Daily Average Revenue Trades (DARTs) reached 4.82 million, a 36% increase over the prior year's quarter.
• Customer equity reached $930.3 billion, a 40% increase, reflecting strong client asset inflows and market performance.

Management did not provide specific numerical guidance but emphasized their ongoing focus on automation and technology to maintain low costs and capture global market share.

Improving

The firm recorded strong acceleration in account growth and margin loan balances, coupled with expanding profit margins despite a complex macro environment.

The company remains positioned as a high-quality compounder, benefiting from its automated low-cost model and its ability to scale assets rapidly as evidenced by the 40% growth in customer equity.