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Learn moreOn July 21, Interactive Brokers Group (NASDAQ:IBKR) reported results for the quarter ended June 30, with earnings of $0.69 per diluted share, up from $0.51 a year earlier. Net revenues rose to $1.90 billion from $1.48 billion. That is a big leap for a business that was already highly profitable, and the pretax margin still edged up to 77%. Here is what drove it, what could bite, and how the market is pricing the stock.
More Clients, Fatter Balances
The engine starts with people. Customer accounts grew 34% to 5.19 million, and customer equity rose 40% to $930.3 billion. Because equity outran the account count, the average customer is also bringing more money, not just more logins. Bigger balances feed both trading and borrowing.
Those balances then show up in revenue in two ways. Commission revenue climbed 30% to $673 million as customers traded more, with options volume up 17% and stocks up 14%. Futures barely moved at 2%, so the growth is coming from the options and stock crowd. The bigger line is interest. Net interest income rose 23% to $1.06 billion as customers borrowed more against their portfolios and left more cash on deposit. Margin loans jumped 67% to $108.5 billion, far outpacing account growth.
Costs are not eating the gains. The pretax margin of 77% compares with 75% a year ago, so the extra revenue is flowing through rather than being bought with heavy spending. Other fees and services rose 40% to $87 million, led by order-flow payments from exchange-mandated programs and risk exposure fees. The board also declared a quarterly dividend of $0.0875 per share, payable September 14, to holders of record on September 1.
Fine Print Worth a Look
Growth has a price tag. Execution, clearing and distribution fees rose 22% to $142 million, and regulatory fees alone added $19 million after the SEC lifted its Section 31 fee rate on April 4, 2026. Liquidity rebates from exchanges softened the blow as volumes grew. Still, these costs rise with the same activity that lifts revenue, so busier markets do not come free.
Then there is currency. The company holds its equity in the GLOBAL, a 10-currency basket. This quarter, that strategy cut comprehensive earnings by $36 million, because the GLOBAL slipped about 0.21% against the dollar. It added $21 million to other income but subtracted $57 million through other comprehensive income. A fraction of a percent moved a lot of money.
And interest is now the biggest revenue line at $1.06 billion. That means results lean on customers staying active and staying willing to borrow.
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