Interactive Brokers Group reports july trading metrics

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Interactive Brokers Group, Inc. (NASDAQ: IBKR) reported monthly brokerage performance metrics for July, showing continued growth across key business indicators.

The automated electronic broker recorded 3.498 million Daily Average Revenue Trades (DARTs) in July, representing a 27% increase compared to the prior year and a 1% increase from the prior month. Client equity balances reached $685.8 billion at month-end, up 35% year-over-year and 3% month-over-month.

Client margin loan balances totaled $67.6 billion at the end of July, marking a 20% increase from the previous year and a 4% rise from June. Client credit balances, including $6.0 billion in insured bank deposit sweeps, reached $144.3 billion, up 32% year-over-year while remaining approximately flat compared to the prior month.

The company's client base expanded to 3.958 million accounts, representing a 32% increase from July 2024 and a 2% increase from June 2025. This translated to 194 annualized average cleared DARTs per client account.

Commission pricing remained competitive, with an average commission per cleared commissionable order of $2.64, including exchange, clearing and regulatory fees. By product category, stock orders averaged $2.01 per order with an average size of 999 shares, equity options averaged $3.77 per order with 6.6 contracts, and futures averaged $4.14 per order with 3.0 contracts.

The company's GLOBAL currency basket decreased 0.73% in July but remained up 1.630% year-to-date when measured in U.S. dollars.

For U.S. stock trading, Interactive Brokers reported that the average trade size was $19,605 in July. The company's IBKR PRO clients incurred total trading costs of approximately 1.8 basis points measured against a daily VWAP benchmark for June trading, with a twelve-month rolling average of 3.5 basis points.