A Record Year and a New Catalyst Stack: Maintaining Outperform, With Valuation the Rising Risk

Results vs. Consensus

Q4 2025 Scorecard

Year-Over-Year Comparison (Q4)

Quarter-Over-Quarter Comparison

Note on reported vs. adjusted revenue: reported net revenue dipped 0.9% sequentially only because Q3 carried an $85M other-income investment gain (GAAP) while Q4 had a small currency-program loss. On the adjusted basis that strips both, net revenue rose 3.7% sequentially, the cleaner read on the underlying business.

Quality of Beat

Revenue: The 15.4% YoY revenue growth is broad and high quality. Commissions hit a quarterly record on options volume up 27% and futures up 22%; NII held at a near-record through further cuts. The only optical softness is the sequential reported-revenue dip, which is entirely an other-income artifact, not a core deceleration.

Margins: The 79% pretax margin matched Q3's record, and the full-year 77% is a new annual high. Compensation fell to 9% of net revenue in the quarter (10% for the year, down from 11% in 2024). The automation model keeps converting revenue growth into margin with almost no cost drag.

EPS: Adjusted EPS of $0.65 beat the $0.59 consensus by 11% and exceeded GAAP $0.63, the reverse of last quarter, because the other-income line swung to a currency-program loss in GAAP. The public company's effective tax rate fell to 12% (below its ~18–19% norm) on 2025 tax benefits, which flattered GAAP EPS by a few cents; normalizing the tax rate, the underlying EPS is a touch lower but the beat holds comfortably.

Full-Year 2025 in Context

The single most telling 2025 statistic is not on the income statement. IBKR's clients beat the S&P 500 (+17.9%) across every cohort: individual investors averaged +19.2% (+130bp), financial advisers +20.57% (+267bp), and hedge-fund clients +28.91% (a full 11 points ahead of the index). Management frames this client outperformance, the product of low pricing, superior execution, and high interest on idle cash, as the real reason clients come and stay. It is the clearest articulation of the moat we have seen: the platform makes its users measurably richer.

Revenue Composition

Net Interest Income

NII of $966M was within $1M of Q3's record despite further benchmark cuts (the average US Fed funds rate fell 75bp year-over-year). The offset came overwhelmingly from balances: margin-loan interest rose 17% on a 40% jump in margin balances to an all-time-high $90.2B, and segregated-cash interest fell only 3% even as yields dropped. The CFO also flagged a repricing-lag benefit, with segregated-cash assets retaining somewhat higher rates while credit-balance costs reprice down on overnight rates.

"Our very strong performance in the margin lending balances vastly overcame the drop in the general benchmark rates." — Paul Brody, CFO

Assessment: A second consecutive quarter of NII holding near a record through cuts, this time powered by a 40% margin-loan surge. The line is behaving exactly as the upgraded thesis predicted. The watch item shifts to the durability of margin balances, which are pro-cyclical and would shrink in a market dislocation.

Commissions

Commissions hit a quarterly record $582M, with options volume up 27%, futures up 22% to a near-record, and stock share volume up 16% as clients gravitated to larger, higher-quality names. For the full year, commissions reached $2.1B (+27%). Commission per cleared commissionable order was $2.64, with the usual SEC-fee and rebate distortions.

Assessment: The trading engine is broad and durable, and the newer vectors keep adding incremental volume: overnight trading rose 130% YoY and ForecastEx volumes exploded. Commissions are now a $2B+ annual line still growing in the high-20s.

Other Income, Other Fees

Other fees and services rose modestly to $85M on higher options-exchange PFOF programs and FDIC-sweep fees, partly offset by lower risk-exposure fees. Other income was just $10M reported ($37M adjusted), dragged by a loss in the currency-diversification program, which we treat as non-core noise.

Key Operating Metrics

Key Topics & Management Commentary

Overall Management Tone: The tone was a measured victory lap, anchored by the record year and the striking client-outperformance statistic, but the airtime shifted noticeably toward forward catalysts (the bank charter, ForecastEx, European crypto) rather than the quarter just reported. Where prior calls hedged the growth outlook, the Chairman now flatly rejects any deceleration ("as long as I am alive"). Management was candid that crypto remains immaterial and that prediction-market regulation is unsettled, declining to overpromise on either.

A Record Year Across Every Major Line

For the first time IBKR generated more than $6B in net revenue, with record NII ($3.6B), record commissions ($2.1B, +27%), a record 77% full-year pretax margin, and more than 1,000,000 net new accounts, the firm's best year for account growth. Adjusted pretax income topped $1B for the fifth straight quarter.

"For the full year, we generated more than $6 billion in net revenues for the first time ... record results in all the major financial categories for the year." — Paul Brody, CFO

Assessment: A clean sweep of records achieved during a rate-cutting year is the strongest possible validation of the thesis. The business is firing on both the trading and the balance-sheet engines simultaneously.

NII Resilience, Round Two

The central question, whether NII can grow through cuts, was answered again. NII held at a near-record $966M with a 40% surge in margin loans and a repricing-lag tailwind on segregated cash offsetting a 75bp drop in average Fed funds. The updated sensitivity is ~$77M per 25bp US cut off a December base with Fed funds at 3.64%.

"For SEG cash, when the rates come down, even though we have a relatively short duration, there is a little bit of tail out there ... The rest is balance changes. So our very strong performance in the margin lending balances vastly overcame the drop." — Paul Brody, CFO

Assessment: Two consecutive quarters of NII resilience through actual cuts cement the reclassification of this line from "at risk" to "grower." The remaining sensitivity is to the pace of further cuts and to margin-loan cyclicality, not to the question of whether balances can offset rates.

The Bank Charter: A New Custody Catalyst

Management filed for an OCC National Trust Bank charter and expects to be operational by end of 2026. The rationale is specific: as a broker-dealer, IBKR cannot custody mutual-fund and ETF assets; a trust charter would let it do so, opening a new asset-gathering and custody revenue avenue, particularly relevant to its growing adviser and institutional base.

"As a broker-dealer, the regulations do not permit us to custody assets of mutual funds and exchange-traded funds. A trust charter bank will allow us to do that. So that is the rationale behind our application." — Paul Brody, CFO

Assessment: A concrete, regulator-gated catalyst with a 2026 timeline. It is not a 2026 earnings driver, but it expands the addressable wallet (fund custody, adviser assets) and is the kind of structural optionality that supports a premium multiple over time.

ForecastEx Goes Vertical

ForecastEx, the CFTC-regulated event-contract exchange, traded 286M pairs in Q4, up from just 15M in Q3, with 10,000+ listed instruments, four members quoting, and 24/7 trading since mid-December. Management is deliberately steering clear of sports betting (citing a Massachusetts court ruling against a peer) and focusing on temperature, election, economic, and climate contracts, with a plan to tie temperature contracts to electricity and natural-gas hedging for utilities.

"ForecastX traded 286 million pairs this quarter, up from 15 million pairs in the third quarter, and now has four members quoting into the exchange, which has over 10,000 listed instruments." — Milan Galik, CEO (read by Nancy Stuebe, IR)

Assessment: A nearly 20x sequential volume jump signals a category finding product-market fit. IBKR's regulated-exchange positioning, building infrastructure and letting partners take consumer-facing risk, is the disciplined way to play it. Still tiny in revenue, but the institutional use cases (utilities hedging weather) are intriguing optionality.

Account Growth: "As Long As I Am Alive"

For the third consecutive quarter, an analyst asked how much longer account growth can run near 30%. The Chairman, who had floated deceleration at a spring conference, now dismisses the question entirely.

"No. I do not see any reason why our account growth would slow down. It will continue at the rate that we have been going ... our platform is attractive to many people." — Thomas Peterffy, Founder & Chairman

Assessment: Organic, incentive-free growth at a 4.4M-account base, sourced evenly across regions and client types, is the durable core of the story. The Chairman's repeated, unhedged confidence is itself a signal from a famously conservative operator.

The Record 79% Margin and the Client-Outperformance Moat

The pretax margin matched the Q3 record at 79%, and the full-year 77% set an annual high, with compensation down to 9% of net revenue in the quarter. The deeper point management pressed is that this efficiency is passed to clients as lower costs and higher cash yields, which is why IBKR's clients beat the S&P across every cohort in 2025.

"In 2025, the S&P 500 rose 17.9%. By comparison, our clients outperformed ... Hedge fund clients were up 28.91% on average, a full 11 percentage points ahead of the S&P." — Milan Galik, CEO (read by Nancy Stuebe, IR)

Assessment: The margin and the moat are the same fact viewed from two sides: a low-cost, automated platform that keeps more money in clients' pockets. That flywheel is exceptionally hard for higher-cost competitors to break.

Crypto: Honest About Immateriality, Europe Imminent

Management was unusually candid that crypto revenue remains small, that most active crypto traders already trade elsewhere, and that introducing brokers are not even asking for it. The European launch (via Zero Hash) is expected this quarter, and the asset-transfer capability is again identified as the key to migrating client holdings to IBKR's lower pricing.

"The revenues are at the moment small relative to the overall company's revenues. Most clients who actively trade cryptocurrencies were already doing so before we entered the space." — Milan Galik, CEO

Assessment: Refreshing candor that keeps crypto firmly in the optionality bucket. The European launch and asset transfers are the catalysts; absent migration, crypto stays a rounding error.

Margin Loans at $90B: the Risk-On Tailwind

Customer margin loans rose to an all-time-high $90.2B (+40% YoY, +16.7% QoQ), the direct engine of the NII resilience. The growth reflects a risk-on client base increasing leverage in a rising market, which management welcomes as high-quality, bottom-line revenue while acknowledging it is pro-cyclical.

Assessment: A powerful current tailwind and a clear sensitivity. The same balances that are carrying NII through cuts would contract quickly in a market drawdown, so the strength of this line is both the upside and the risk to monitor.

Capital Allocation and the European Bank License

With firm equity now above $20B and no debt, management reiterated M&A discipline (it will not buy a sports-betting firm and sees nothing else attractive, including in prediction markets, given organic ForecastEx growth). A European banking license is on the horizon but not urgent, most likely obtained via Ireland.

"Anything is possible, but we are not going to buy a firm that is doing sports betting. And there is nothing else out there at the moment." — Paul Brody, CFO

Assessment: Consistent, disciplined capital allocation. The excess capital is a strategic asset (it wins counterparty trust) rather than a near-term return lever, and management is content to grow organically.

Outlook & Rate Sensitivity

No formal guidance again. On 2026 expenses, management pointed to recent trends (~6% headcount growth, ~10% compensation growth) as the run-rate, while flagging that AI initiatives could affect the pace. The rate-sensitivity table remains the de facto NII outlook.

The base is Dec 31 balances with Fed funds at 3.64%, down from 4.09% at Q3. Each 25bp clip costs ~$77M of annual NII, and the offset has so far come comfortably from balance growth (margin loans +40%, cash +34%). The risk is a steeper 2026 cut path against eventually slower balance growth.

Our framing: We continue to model NII as a grower through the cut cycle, with the swing factors being the pace of cuts and the durability of the record margin-loan balances. A market drawdown that shrinks margin loans is the most plausible way the NII story stumbles.

Analyst Q&A Highlights

The Customer-Credit Repricing Dynamic

The opening question probed why the yield paid on customer credit balances did not fall as much as expected, and whether more NII pressure was coming.

Q: "The decline in the amount paid, the yield did not come down quite as much as we were looking for ... what might have caused the lower rates not to flow through, and whether there might be some more on the come?"
— Brennan Hawken, BMO Capital Markets

A: "For SEG cash, when the rates come down ... there is a little bit of tail out there ... we retain somewhat higher rates while we pay lower rates on our credit balances. The rest is balance changes. So our very strong performance in the margin lending balances vastly overcame the drop."
— Paul Brody, CFO

Assessment: Confirms a repricing-lag tailwind on the asset side plus the dominant role of balance growth. It explains how NII can stay near a record through cuts, and signals the dynamic persists as long as balances grow.

The OCC Bank-Charter Timeline and Rationale

An analyst asked for an update on the bank-charter application after its comment period closed, and what impact approval would have.

Q: "I believe the comment period for your bank charter application ended today. Could you update us on that process ... and what kind of impact we should expect if the bank charter is approved?"
— Brennan Hawken, BMO Capital Markets

A: "My expectation would be to be operational by the end of this year ... As a broker-dealer, the regulations do not permit us to custody assets of mutual funds and exchange-traded funds. A trust charter bank will allow us to do that."
— Paul Brody, CFO

Assessment: A concrete, end-2026 catalyst with a clear strategic purpose (fund and adviser-asset custody). It is optionality rather than a near-term earnings driver, but it widens the addressable wallet meaningfully.

Prediction Markets and the Sports Question

An analyst asked how the sports-contract regulatory fight might play out and whether IBKR would offer such contracts to its own customers.

Q: "There has been a lot of speculation about whether regulators or the courts will allow prediction market platforms to continue offering sports contracts ... what would you need to see to be comfortable offering contracts like that to IBKR customers?"
— Patrick Moley, Piper Sandler

A: "Massachusetts just came out with a ruling against [Kalshi] ... this is certainly not the final word ... luckily, Interactive Brokers does not rely on sports. We do believe that these contracts will have enormous applicability to many things about the future ... it does not really have to depend on sports."
— Paul Brody, CFO

Assessment: Management deliberately sidesteps the regulatory and reputational risk of sports betting while keeping the broader event-contract opportunity. A disciplined posture that protects the core franchise.

Excess Capital and M&A Appetite

An analyst pressed on capital-return priorities and whether prediction markets could be an M&A target.

Q: "You are sitting on a healthy pile of excess cash. Any updated thoughts on the appetite for M&A and capital return priorities ... could M&A make sense in an emerging asset class like prediction markets?"
— Patrick Moley, Piper Sandler

A: "Anything is possible, but we are not going to buy a firm that is doing sports betting. And there is nothing else out there at the moment ... We have our own platform ... no reason for us to look for an acquisition in this space."
— Paul Brody, CFO / Thomas Peterffy, Chairman

Assessment: Consistent discipline. With ForecastEx growing organically nearly 20x sequentially, building beats buying, and the excess capital stays a strategic-strength asset rather than being deployed into a frothy space.

How Long Account Growth Can Run

For a third straight quarter, an analyst asked the Chairman to put a ceiling on account growth.

Q: "Still very strong, worth at 30%. Thomas, any specifics on how long you can keep this up? Because your comments at that May conference [were] as long as I am alive."
— Craig Siegenthaler, Bank of America

A: "No. I do not see any reason why our account growth would slow down. It will continue at the rate that we have been going. You see, the benefit that we have is our platform is attractive to many people."
— Thomas Peterffy, Founder & Chairman

Assessment: The unhedged confidence, repeated quarter after quarter and now backed by a record >1M annual net adds, is a strong qualitative signal that the compounding engine has not hit a scale ceiling.

Crypto Adoption Across the Client Base

An analyst asked whether IBKR's direct and introducing-broker clients actually want crypto, and from IBKR specifically.

Q: "How should we think about the appetite for adoption across your base? ... do they want crypto trading, and do they want it from IBKR?"
— Craig Siegenthaler, Bank of America

A: "The revenues are at the moment small ... Most clients who actively trade cryptocurrencies were already doing so before we entered the space ... [introducing brokers] have not been asking for access to crypto ... after [asset] transfers, some crypto assets will migrate to our platform and take advantage of our superior pricing."
— Milan Galik, CEO

Assessment: Candid and realistic. Crypto is a "round out the offering" feature for advisers and multi-asset clients, not a growth pillar, and the asset-transfer unlock is the only thing that could change that.

What They're NOT Saying

1. No 2026 revenue guidance: only an expense run-rate hint (~6% headcount, ~10% comp) and the rate-sensitivity table; investors must underwrite the top line independently.
2. Bank-charter economics unquantified: management gave a timeline and rationale but no sizing of the custody revenue opportunity or the cost of standing up the trust bank.
3. ForecastEx revenue not broken out: a near-20x volume jump was disclosed, but no revenue figure, so the P&L contribution remains unknowable.
4. Crypto still unsized: explicitly called immaterial, with no revenue or account contribution disclosed despite the European launch.
5. Margin-loan composition undisclosed: the record $90.2B balance is the engine of NII, but management again declined to break down retail vs. institutional or single-name concentration.
6. The 12% public-company tax rate: well below the ~18–19% norm and flagged only briefly; it lifted GAAP EPS by a few cents and is unlikely to recur at that level.

Market Reaction

• Pre-print setup: IBKR closed at $71.51 entering the print, near all-time highs, up 11.2% year-to-date and 50.5% over the trailing twelve months. Expectations were elevated.
• Reaction-day move: the stock ran to an intraday high of $76.97 and closed up 6.0% at a new all-time high of $75.80 (+$4.29) on 2.9x normal volume, against an S&P up 1.2%. The move was largely idiosyncratic.

The market rewarded the record year, the confirmed NII resilience, and the catalyst stack, and likely the "clients beat the S&P" framing as well. Unlike Q3's sell-the-news fade, this print was bought. The flip side is that the rally pushes the multiple to roughly 34x trailing earnings, which is why our enthusiasm is tempered by valuation even as we maintain the rating.

Street Perspective

Debate: Is the Valuation Now Stretched?

Bull view: A business compounding revenue in the high-teens to 20s with an 80%-handle pretax margin, NII proven through cuts, and a fresh catalyst stack (bank charter, prediction markets) deserves to trade at a premium; ~34x is the price of rare quality.

Bear view: ~34x trailing is a demanding multiple for a broker, leaves no room for disappointment, and follows a 50% twelve-month run to all-time highs; any growth wobble or a steeper rate-cut path could compress the multiple sharply.

Our take: The bears have the stronger point on the margin of safety, which is why valuation is now our primary watch item. We stay Outperform because the fundamental momentum and optionality are intact, but we would not add at these levels and would look to upgrade conviction only on a pullback.

Debate: Can NII Keep Growing as Cuts Continue into 2026?

Bull view: It has held through two quarters of cuts on the strength of 40% margin-loan and 34% cash growth, with a repricing-lag tailwind; balances keep winning.

Bear view: Margin loans are pro-cyclical and at an all-time high; a market drawdown would shrink them just as further cuts bite, hitting NII from both sides.

Our take: The realized track record favors the bulls, but the bear scenario (a drawdown shrinking record margin balances) is the genuine tail risk to NII. We model NII as a grower in the base case while watching margin-loan trends as the leading indicator.

Debate: Are the New Initiatives Real Value or Distraction?

Bull view: The bank charter opens fund/adviser custody, ForecastEx is scaling nearly 20x, and crypto adds optionality, all built on the same low-cost platform, layering new revenue avenues onto the core.

Bear view: None of these are sized or material yet, and prediction markets carry regulatory and reputational risk; the core brokerage is what matters and the initiatives are a sideshow.

Our take: We side with the bulls but with discipline: these are real, well-managed options with multi-year payoffs, not 2026 earnings drivers. They support a premium multiple over time but should not be capitalized into near-term numbers.

Model Update

Valuation framing: At $75.80, IBKR trades at roughly 34x trailing full-year 2025 EPS (about $2.21 GAAP / $2.20 adjusted), a re-rating back toward the high end of its range as the stock made new highs. For this growth-and-margin profile with NII de-risked and fresh optionality, the multiple is defensible but no longer cheap. We maintain Outperform on momentum and optionality, with the explicit caveat that the valuation cushion has thinned considerably.

Thesis Scorecard Post-Earnings

Grading the standing thesis against the Q4 print and call.

Overall: Thesis intact and, on fundamentals, strengthened by a record year and confirmed NII resilience. The one pillar moving against us is valuation: Bear #2 has gone from easing to re-emerging as the stock re-rated to ~34x at new highs.

Action: Maintain Outperform; do not chase. Maintain triggers: NII continuing through 2026 cuts, account growth holding, bank-charter approval and ForecastEx scaling. Downgrade triggers (now closer at hand): a revenue or growth deceleration that the full multiple cannot absorb, a market drawdown that shrinks record margin loans and pressures NII, or further multiple expansion without commensurate fundamental progress.