Interactive Brokers August 2026 DARTs Rise 23% Year-On-Year

Interactive Brokers reports 23% year-on-year DART growth in August 2026 as client accounts and equity reach fresh highs.

Key Points:

• Interactive Brokers recorded 4.276 million DARTs in August 2026, up 23% year-on-year, while client accounts grew 35% annually to 5.46 million.
• Client equity reached $962.8 billion, up 35% from a year earlier, with margin loan balances climbing 41% year-on-year to $101.5 billion.

Interactive Brokers Group posted its key operating metrics for August 2026, reporting broad year-on-year growth across trading activity, client accounts, and asset balances.

The broker recorded 4.276 million Daily Average Revenue Trades in August 2026, up 23% from the same month a year earlier. On a sequential basis, DARTs slipped 3% from July 2026, a modest pullback against an otherwise strong annual trend.

Client accounts grew to 5.460 million by the end of August, rising 35% year-on-year and 3% above the prior month’s level. Ending client equity reached $962.8 billion, up 35% from August 2025 and 6% above July 2026, reflecting both market appreciation and continued inflows from a growing account base.

Interactive Brokers August 2026 DARTs Rise 23% Year-On-Year

Ending client margin loan balances reached $101.5 billion, up 41% year-on-year and 1% above the prior month. Client credit balances totalled $185.6 billion, which includes $6.4 billion in insured bank deposit sweeps, rising 27% from a year earlier and 3% from July 2026. The continued expansion in both margin and credit balances points to sustained client engagement and growing leverage activity across the platform.

The average commission per cleared commissionable order came in at $2.52 in August, inclusive of exchange, clearing, and regulatory fees. The per-order figure covers all associated costs in a single number, giving clients and analysts a straightforward measure of the all-in trading cost on the platform. At $2.52, the rate applies across commissionable orders processed and cleared by the broker during the month.

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