Interactive Brokers reported 5.678 million client accounts at the end of October, up 34% year-on-year and 2% from September. Trading activity moved less uniformly: daily average revenue trades, or DARTs, were 4.306 million, up 5% on the month but down 4% from October 2025. The figures were published on 2 November.[1]
Client equity ended October at $928.6 billion, 19% higher year-on-year but 4% lower than at the end of September. This measure reflects market prices, customer inflows and outflows, withdrawals and other account movements; it is not the same as brokerage revenue or profit. Without a full bridge separating customer flows and valuation changes, the monthly decline cannot be attributed solely to client selling or to deteriorating customer confidence.[1]
The broker also reported $106.8 billion of margin loans, 31% above a year earlier and 2% higher over the month. Client credit balances stood at $180.5 billion, including $6.2 billion in insured bank-deposit sweeps, up 15% year-on-year but down 3% from September. Credit balances and margin loans have distinct balance-sheet, financing and risk implications. Their trends can diverge even when headline account growth remains positive.[1]
Client growth and trading activity give different signals
Average commission per cleared commissionable order was US$2.46, including exchange, clearing and regulatory fees. The product averages were US$1.88 for stock orders averaging 590 shares, US$3.58 for equity-option orders averaging 6.0 contracts and US$3.94 for futures orders averaging 2.9 contracts. The futures category includes options on futures. These are realised averages for October, not a price quotation for an individual order.[1]
Annualised average cleared DARTs per client account were 163. Together with the larger account base and lower year-on-year DART total, that indicates why customer acquisition and trading activity need to be assessed separately.[1]
Interactive Brokers: October 2026 operating metrics
| Item | Details |
|---|---|
| DARTs | 4.306m; −4% year-on-year; +5% month-on-month |
| Client accounts | 5.678m; +34% year-on-year |
| Client equity | $928.6bn; +19% year-on-year; −4% month-on-month |
| Margin loans | $106.8bn; +31% year-on-year |
| Client credit balances | $180.5bn; +15% year-on-year |
| Average commission per cleared commissionable order | $2.46 including applicable fees |
Sources & further reading
- October 2026 brokerage metrics and Reg.-NMS execution statistics Interactive Brokers Group · 2 Nov 2026 · Accessed 4 Nov 2026