Interactive Brokers reported stronger retail trading activity and continued growth in its client base in June, according to the broker's latest monthly operating metrics.

The company said daily average revenue trades rose to 5.26 million during the month. The trading volume was 53% higher than in June last year and 6% above the level recorded in May, extending the broker's recent growth in client activity.

The June results also continue a multi-year trend of rising trading volumes. In June 2025, Interactive Brokers reported 3.45 million DARTs, representing a 40% year-over-year increase. A year earlier, in June 2024, the broker had recorded 2.47 million DARTs.

Client Equity Reaches $930 Billion

Client account growth also remained steady. Interactive Brokers ended June with 5.18 million client accounts, an increase of 34% compared with the same month last year and 4% higher than at the end of May.

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The value of assets held by clients also remained elevated. Client equity totaled $930.3 billion at the end of June, representing a 40% increase from a year earlier despite a 1% decline from the previous month.

At the same time, client margin loan balances climbed to $108.5 billion, rising 67% year over year and 8% from the previous month, indicating continued borrowing activity among clients.

AI Integration Accompanies Korea Market Expansion

The monthly operating update follows two recent product announcements from Interactive Brokers. Last month, the broker expanded its artificial intelligence offering by integrating ChatGPT and Grok into its platform and extending AI-generated trade support to options, futures and futures options.

Clients can connect existing AI accounts to analyze portfolios, research markets and generate trade instructions, although all orders require client approval before execution.

Separately, the company launched direct trading in Korea Exchange-listed equities, becoming the first major U.S.-based broker to offer the market through its platform. The rollout expanded its Asia-Pacific coverage following earlier additions of Korean derivatives and Taiwan's Taipei Exchange.