Interactive Brokers stock sees October client accounts climb 34%

Published on 11/11/2026 at 14:12 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Interactive Brokers stock saw October trading activity improve from September, while margin lending and customer growth remained strong. Client equity slipped month on month.

October metrics show mixed momentum

Daily average revenue trades rose from September but remained below the prior-year level.
Margin loans and client accounts expanded year over year, supporting the broker's interest and fee income base.
Client equity declined from September despite continued annual growth.

IBKR, US45841N1072, Illustration mit AI erstellt.

Interactive Brokers reported stronger monthly trading activity and continued customer expansion in its October brokerage metrics released on Monday, November 2. The figures point to a mixed operating picture: transaction activity improved from September, while client equity and credit balances declined over the same period.

According to the Financial Times company announcement, Interactive Brokers recorded 4.306 million daily average revenue trades in October. That was 5% above September but 4% below October 2025, leaving trading activity below the level reached a year earlier.

Accounts and lending keep expanding

The customer base continued to grow faster than trading activity. Client accounts reached 5.678 million at the end of October, up 34% from a year earlier and 2% from September. Annualized average cleared DARTs per client account stood at 163, while the average commission per cleared commissionable order was 2.46 US dollars, including exchange, clearing and regulatory fees.

Margin lending provided another positive operating signal. Ending client margin loan balances rose 31% year over year and 2% month on month to 106.8 billion US dollars. The increase matters because margin loans are a key component of the balances that support Interactive Brokers' interest income, although monthly figures alone do not establish the direction of quarterly earnings.

Client equity told a less consistent story. The balance stood at 928.6 billion US dollars, 19% above the year-earlier level but 4% below September. Client credit balances reached 180.5 billion US dollars, including 6.2 billion US dollars in insured bank deposit sweeps, up 15% year over year but down 3% from the previous month.

Execution costs remain a disclosed metric

Interactive Brokers also reported execution statistics for IBKR PRO clients trading US Regulation NMS stocks. The average trade size was 23,670 US dollars in October, while total execution and clearing costs measured against a daily volume-weighted average price were 1.1 basis points of trade value. The rolling twelve-month figure was 2.4 basis points. These figures describe execution economics rather than a forecast for future revenue.

Interactive Brokers stock traded at 71.28 euros on Lang & Schwarz at 14:07 CET on Wednesday, November 11, 2026. The quote gives investors a current trading reference while the October metrics provide the latest operating update; neither by itself establishes a causal explanation for the share price.