Interactive Brokers reports strong August trading growth

Interactive Brokers reports strong August trading growth
Interactive Brokers shows strong Q3 start

​Interactive Brokers, an automated global electronic broker, reported strong operating results for August 2025, highlighting broad-based growth across client assets, trading activity, and financing volumes.

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According to the company’s report, Daily Average Revenue Trades (DARTs) reached 3.49 million, up 29% from the prior year and essentially flat compared with July. This result underscores the sustained engagement of clients on the firm’s platform. On a per-account basis, Interactive Brokers recorded an average of 187 cleared DARTs, reflecting steady activity levels.

Client equity climbed to $713.2 billion, representing a 38% year-over-year increase and a 4% rise from July. Client margin loan balances rose to $71.8 billion, up 31% from last August and 6% from the previous month. Credit balances also expanded to $146.4 billion, including $6 billion placed in insured bank deposits.

Client growth and commission efficiency

Client account growth remained robust, with the total number of accounts reaching 4.05 million—32% higher than a year ago and 2% above July. This highlights Interactive Brokers’ ability to consistently attract new investors.

Commission revenue metrics reflected gains in efficiency. The average cleared commission per order was $2.68, inclusive of exchange, clearing, and regulatory fees. For U.S. Reg-NMS stock trades, the average order size was $20,923, while IBKR PRO clients’ all-in execution cost in August was 1.8 basis points of trade value. Over the past 12 months, this figure averaged 3.1 basis points, demonstrating a steady cost advantage compared with industry standards.

Currency basket and outlook

Interactive Brokers also reported growth in its GLOBAL currency diversification basket, which rose 0.47% in August and 2.1% year-to-date.

Overall, the August report reflects the company’s strong momentum: client activity, asset balances, and financing volumes all continue to expand. By maintaining low costs and transparent execution, Interactive Brokers reinforces its position as a leading platform for both individual and institutional traders seeking efficient access to global markets.

Read also: Interactive Brokers launches Connections tool for global investors

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