Interactive Brokers closed out the market day on Tuesday with the quarter the bulls wanted to see. Adjusted earnings came in at $0.69 a share against a $0.64 consensus, up from $0.51 a year ago — a 35% jump. Net revenue reached $1.90 billion on a reported basis ($1.88 billion adjusted), beating the roughly $1.75 billion Street estimate and up 28% from $1.48 billion the year before. Shares climbed after the print.
The tell is that both engines fired. Commission revenue rose 30% year over year as customers traded more of everything — stock volume up 14%, options volume up 17%. And net interest income, the quieter half of the model, climbed 23% to $1.06 billion on higher average customer margin loans and credit balances. When a broker beats on trading and on the float it earns holding client cash, the quarter isn’t leaning on one lucky line.
Then there’s the growth number that matters most for a platform business: customer accounts hit 5.19 million, up 34% year over year. That is not a maturing franchise squeezing more out of the same book — it is a still-widening funnel of new traders, many of them outside the U.S., plugging into the same risk-on mood that drove this week’s chip-led rally.
The read-through
Interactive Brokers is one of the cleanest gauges on the tape of how active sophisticated and retail traders actually are, because it earns when they transact rather than when they simply hold. A 30% jump in commissions and a 34% jump in accounts says the appetite behind the rally isn’t only institutional desks rotating into semiconductors — individual accounts are leaning in too. That’s a different quality of demand than a beat from an industrial like 3M or a consumer name like GM: it measures behavior, not backlog.
Our take: The broker beat is the one to file away, because it’s upstream of everything else. Industrials tell you what got built last quarter; a brokerage tells you how aggressively people are positioning right now. Rising volumes and record accounts are the fuel line under a market that just broke a three-day losing streak — but they cut both ways. The same activity that supercharges a rally accelerates the flush when sentiment turns. For now the plumbing is wide open; the number to respect on the way down will be the first quarter accounts stop growing at a double-digit clip.
What to watch
- Net interest income: A fat chunk of the beat is interest on client balances. If rate-cut expectations firm up into the fall, that tailwind thins — watch whether commission growth can carry the model alone.
- Account velocity: 34% account growth is the headline metric. A deceleration here would signal the retail wave cresting before the trading revenue does.
- The rest of the complex: Charles Schwab, Robinhood and the other activity-levered names report into month-end. If they echo IBKR’s volume story, the “retail is back” trade has confirmation; if they don’t, IBKR’s international mix did the heavy lifting.