Interactive Brokers Group, Inc.

IBKR · NASDAQ · USD

Can account growth and new products keep revenue rising fast enough to offset softer trading per account and lower interest rates?

Last 4 earnings calls · through Q3 FY2026

Bull case

  • Account growth across regions

    The bull case is that a low-cost, automated global platform keeps winning accounts in every region, and those accounts bring cash and trading with them as they grow.

  • Interest-earning client balances

    Growth in client cash and margin balances has more than offset falling benchmark rates, so net interest income has kept rising even as central banks cut.

  • Broad product expansion

    New markets, prediction markets, crypto and AI trading tools each give existing clients another reason to trade without requiring a new customer.

Bear case

  • Trading activity per account

    The bear case is that account growth flatters the headline while activity per account falls, so revenue depends on a steady flow of new clients.

  • Sensitivity to interest rates

    A large share of profit comes from interest on client cash and margin loans, which shrinks when central banks cut rates and is difficult to replace with fees.

  • Cyclical trading revenue

    Commission revenue follows market volatility, and in a prolonged downturn the company has already shown that revenue can fall by more than half.

  • Small new ventures

    Prediction markets, crypto and AI tools are still small contributors, so they do not yet reduce the reliance on trading commissions and interest income.

Bull and bear points

Growth & Execution

In short: Account growth is running strong across regions, while trading activity per account has started to slip.

Bull · 2

  • Account growth has stayed above 30% year on year

    New accounts bring cash and trading with them, so account additions drive both commissions and interest income; management describes the growth as broad across regions and client types.

    Q3 FY2026 call

  • AI trading moved from client approval to autonomous

    A year ago every AI-initiated instruction needed the client to approve it; now eligible clients can let an AI agent trade on its own, which points to higher activity from the same accounts.

    Tone shiftQ2 FY2026 → Q3 FY2026
Bear · 2

  • Trading per account fell as stock and option volumes slowed

    Daily trades per account dropped from the second quarter and the average commission per order fell on smaller order sizes, so a bigger client base did not produce proportionally more commission revenue.

    Q3 FY2026 call

  • Higher advertising spend is not producing a better return

    Management once said it was getting better at advertising; it now says the yield on each marketing dollar is unchanged, so extra spending buys growth only in proportion and the newest digital channel brought fewer, larger accounts.

    Tone shiftQ4 FY2025 → Q2 FY2026

Profitability & Financial Strength

In short: Margins lead the industry and there is no long-term debt, but net interest income falls with every rate cut.

Bull · 2

  • Pretax margin has held near 78% for eight quarters

    Compensation runs near a tenth of net revenue while revenue scales, so profit growth has outpaced spending and funded a larger capital base without new borrowing.

    Q3 FY2026 call

  • The annual dividend was raised again, to $0.60

    Earlier this year management lifted the annual dividend from $0.32 to $0.35 a share; it has now lifted it again to $0.60, saying the balance sheet supports returning more capital while still funding growth.

    Tone shiftQ1 FY2026 → Q3 FY2026
Bear · 2

  • A quarter-point rate move swings $83 million a year

    Net interest is the largest single profit source and management estimates a quarter-point move in the Fed funds rate changes annual net interest income by $83 million in either direction, so balance sheet growth has to run to stand still.

    Q3 FY2026 call

  • Diluted share count has grown about 9.5% in three years

    Stock-based pay keeps adding shares, so part of each year's profit growth is spread across more owners and per-share results lag the underlying earnings growth.

    Filed financials

Market Position

In short: A low-cost global platform keeps winning accounts, but revenue depends on trading activity and interest rates.

Bull · 2

  • Clients come for price and global access, not promotions

    Management credits account growth to execution quality, low financing rates and one platform spanning many markets, which single-country brokers with separate systems struggle to match.

    Q4 FY2025 call

  • A rival's minimum size pushes small advisers to IBKR

    A large custodian will require advisers to hold $100 million in assets from the middle of next year, and management expects the smaller firms to move, with onboarding and multi-custodian work already under way.

    Q3 FY2026 call
Bear · 2

  • Revenue has more than halved in a past downturn

    Revenue fell 54.7% between FY2008 and FY2010 and the operating margin fell from 57.3% to 41.5% with it, showing how much of the business still depends on trading activity rather than recurring fees.

    Filed financials

  • Rivals paying more on idle cash would pressure pricing

    The company already pays close to market rates on client cash, so if competing brokers adopt tools that pay more, the interest spread that funds much of profit would narrow.

    Q1 FY2026 call