Interactive Brokers Posts 22% Revenue Gain and 79% Pretax Margin in Q4
Interactive Brokers Q4 2025 commission revenue rose 22% and net interest income jumped 20% year-over-year, delivering a 79% pretax profit margin. Client accounts expanded 32% to 4.40 million and client equity reached $779.9 billion, helping the stock climb 40.6% over the past year.
1. Q4 Financial Performance
In the fourth quarter of 2025, commission revenue increased 22% year-over-year while net interest income rose 20%, resulting in a 79% pretax profit margin as trading volumes surged.
2. Client Growth and Assets
Customer accounts grew 32% to 4.40 million and client equity reached $779.9 billion, reflecting strong platform adoption and asset accumulation over the past year.
3. Stock Performance and Volatility
The shares have gained 40.6% over the last twelve months but retraced 10.6% in the past month; a beta of 1.25 highlights sensitivity to market swings.
4. Structural Advantages
Interactive Brokers’ low-cost, electronic brokerage model thrives in choppy markets by capturing higher trading volumes and benefiting from elevated interest rates boosting net interest income.