The Trigger Fires: Record Net Interest Income Through the Fed's First Cut, and We Upgrade to Outperform
Key Takeaways
- The one thing we said we needed to see, we saw. Net interest income reached a record $967M (+21% YoY) even though the Fed delivered its first cut of the cycle and the average US Fed funds rate fell 96bp year-over-year. Balance growth swamped the rate drag: client cash hit $154.8B (+33%) and margin loans $77.3B (+39%). This is direct, decisive confirmation of the upgrade trigger we set at initiation.
- Profitability set a new high-water mark: a record 79% pretax margin (reported and adjusted), pretax income of $1,312M (+44%), and net revenue of $1,655M (+21%), all beating consensus. GAAP EPS of $0.59 beat the $0.54 Street number; on an adjusted basis EPS was $0.57 (a one-time investment gain accounts for the two-cent gap). Compensation fell to 10% of net revenue, the operating leverage widening yet again.
- Growth is accelerating, not maturing, even at scale. IBKR added its four millionth customer, took accounts to 4.13M (+32%), and pushed customer equity past $750B (+40% vs. +16% for the S&P). For context, client equity took four years to climb from $250B to $500B and barely over one year to add the next $250B. Asked directly where the long-promised deceleration was, the Chairman replied flatly that the firm has seen "exactly the opposite."
- IBKR joined the S&P 500 this quarter and now ranks #4 among prime brokers by hedge funds serviced, behind only Goldman Sachs, Morgan Stanley, and JPMorgan. The crypto roadmap finally has concrete dates (European launch via Zero Hash's Dutch license in Q4, stablecoin funding live, asset transfers by year-end), and securities-lending net revenue effectively doubled year-over-year on a like-for-like basis.
- Rating: Upgrading to Outperform from Hold. At initiation we held back on one concern, that NII would buckle as the Fed cut. It did the opposite. With the central bear point neutralized, the business pillars all confirmed, and the stock selling off 3.3% on the print to roughly 28x, the risk/reward has flipped favorable. We upgrade on the trigger we explicitly set.
Results vs. Consensus
Q3 2025 Scorecard
| Metric | Q3 2025 Actual | Consensus | Beat/Miss | Magnitude |
|---|---|---|---|---|
| Net revenues (reported) | $1,655M | ~$1,505M | Beat | +9.9% |
| Diluted EPS (GAAP) | $0.59 | $0.54 | Beat | +9.3% |
| Diluted EPS (adjusted) | $0.57 | $0.54 | Beat | +5.6% |
| Commissions | $537M | n/a | Record | +23% YoY |
| Net interest income | $967M | n/a | Record | +21% YoY |
| Pretax income | $1,312M | n/a | Record | +44% YoY |
| Pretax margin | 79% | ~74% | Beat | Record |
Year-Over-Year Comparison
| Metric | Q3 2025 | Q3 2024 | YoY Change |
|---|---|---|---|
| Net revenues (reported) | $1,655M | $1,365M | +21% |
| Commissions | $537M | $437M | +23% |
| Net interest income | $967M | $799M | +21% |
| Other fees & services | $66M | $72M | −8% |
| Pretax income (reported) | $1,312M | $909M | +44% |
| Pretax margin (reported) | 79% | 67% | +1,200bp |
| Diluted EPS (GAAP) | $0.59 | $0.42 | +40% |
| Customer accounts | 4.13M | 3.12M | +32% |
| Customer equity | $757.5B | ~$541B | +40% |
Quarter-Over-Quarter Comparison
| Metric | Q3 2025 | Q2 2025 | QoQ Change |
|---|---|---|---|
| Net revenues | $1,655M | $1,480M | +11.8% |
| Net interest income | $967M | $860M | +12.4% |
| Commissions | $537M | $516M | +4.1% |
| Diluted EPS (GAAP) | $0.59 | $0.51 | +15.7% |
| Pretax margin | 79% | 75% | +400bp |
| Customer equity | $757.5B | $664.6B | +14.0% |
| Customer margin loans | $77.3B | $65.1B | +18.7% |
Quality of Beat
Revenue: The 21% YoY and 11.8% QoQ revenue growth is high quality and broad. NII (+21%) carried the quarter on balances; commissions (+23%) reflect record options volume and a 67% jump in equity share volume; the only soft line was other fees (−8%) on lower risk-exposure fees, which is benign. Notably, the sequential acceleration came against a Q2 base that already contained the April-volatility surge, so this is genuine momentum, not a low-comparison artifact.
Margins: The 79% pretax margin is the cleanest evidence yet of the model. Compensation fell to 10% of net revenue while revenue grew 21%, and execution/clearing dropped 21% (mostly the SEC-fee pass-through and exchange rebates). The cost base is barely moving while revenue compounds; this is the entire investment case rendered in a single ratio.
EPS: One nuance keeps the print honest. GAAP EPS of $0.59 included a gain on a long-held investment in other income ($85M reported vs. $50M adjusted); on the adjusted basis that strips this, EPS was $0.57. Both still beat the $0.54 consensus, and the adjusted figure is the cleaner number to carry forward. The public company's effective tax rate of 19.4% is in its normal range, so no tax flattery.
Revenue Composition
The story this quarter is the resilience of net interest income, which alone is the answer to the question we posed at initiation. NII and commissions together are roughly 91% of net revenue, and both set records.
| Revenue line | Q3 2025 | % of net rev | YoY | Notable |
|---|---|---|---|---|
| Net interest income | $967M | 58% | +21% | Record despite the Fed's first cut |
| Commissions | $537M | 32% | +23% | Record options volume; equities +67% |
| Other income | +$85M | 5% | n/a | $50M adjusted; investment gain |
| Other fees & services | $66M | 4% | −8% | Lower risk-exposure fees |
Net Interest Income
NII grew 21% to a record $967M (and $999M on the NIM presentation) in a quarter when most major central banks, including the Fed, cut. The mechanism is exactly the one we wanted to see proven: segregated-cash interest rose 3% and margin-loan interest rose 4% on higher balances even as yields fell, while interest paid to customers was moderated by lower benchmark rates. The firm passed through part of the cut, lowering its qualified-USD customer rate to 3.59% (from 3.83% in Q2).
"Net interest income also reached a quarterly record of $967 million, despite lower benchmark rates in most major currencies. Higher segregated cash and margin loan balances and significantly stronger securities lending contributed to these results." — Paul Brody, CFO
The CFO's framing of the rate-sensitivity step-up is the bull case in one sentence: the dollar exposure to a cut rises because the base of interest-earning balances keeps growing, which is good news, not bad.
Assessment: This is the quarter the bear thesis was supposed to start biting, and instead NII set a record. The proof is not absolute (deeper cuts and slower balance growth could still pressure the line), but the burden of proof has shifted to the bears. This is the single most important development in our coverage of the stock so far.
Commissions
Commissions of $537M (+23%) were a record, with options contract volume hitting a record $418M (+27%) and equity share volume up 67%. Futures volume slipped 7% on weaker industry activity, the only blemish. Commission per cleared commissionable order was $2.70, with the optics again distorted by the SEC-fee pass-through and exchange rebates rather than any pricing erosion.
Assessment: The active, global, sophisticated client base keeps trading more, and the newer engagement vectors (crypto +87% QoQ, overnight +90% YoY, forecast contracts +165%) are starting to add measurable incremental volume on top of the core.
Other Income, Other Fees
Other income was $85M reported but $50M adjusted, the difference being a gain on a long-held investment that we exclude from run-rate analysis. Other fees and services fell 8% to $66M on lower risk-exposure fees, partly offset by higher FDIC-sweep and market-data fees, again a cyclical mix effect tied to clients taking less downside-option risk.
Key Operating Metrics
| KPI | Q3 2025 | YoY | Read |
|---|---|---|---|
| Customer accounts | 4.13M | +32% | 4 millionth added this quarter |
| Net new accounts (YTD) | 790,000 | n/a | Already > all of 2024 |
| Customer equity | $757.5B | +40% | +14% QoQ vs. S&P +8% |
| Customer credit balances | $154.8B | +33% | Record cash |
| Customer margin loans | $77.3B | +39% | All-time high; +20% QoQ |
| Total DARTs | 3.62M | +34% | Record options volume |
| Pretax margin | 79% | +1,200bp | Firm record |
| Employees | 3,131 | +5% | Headcount still lags revenue |
Key Topics & Management Commentary
Overall Management Tone: The tone stepped up from Q2's understated confidence to something closer to vindication, anchored by the S&P 500 inclusion that the CEO called out with evident pride. Where last quarter management hedged its own growth outlook to leave room to overdeliver, this quarter the Chairman dispensed with the hedge entirely, flatly denying any deceleration and expecting the strength to continue. Management was specific and unhurried on the crypto and prediction-market roadmaps, treating them as scheduled deliveries rather than aspirations.
NII Proved Resilient Through the First Cut
The central question for the stock was whether net interest income could grow as the Fed cut. The answer was an emphatic record, with the CFO walking through how higher balances on segregated cash, margin loans, and securities lending more than offset lower benchmark yields. The new rate-sensitivity disclosure shows the firm now stands to lose ~$77M of annual NII per 25bp US cut (up from ~$73M), with a full 100bp across all benchmarks costing ~$417M, but the larger absolute number simply reflects a larger balance base.
"As this business grows for us, we take on more clients, we get bigger balances. Bigger balances also mean more balances that are fully interest rate sensitive ... but that's good news for us because it means the baseline is a lot higher than it was before." — Paul Brody, CFO
Assessment: The rising absolute sensitivity is a feature of growth, not a warning. As long as account and balance formation keeps outrunning the cut path, NII grows; the firm has now demonstrated that across an actual cut. This is the linchpin of the upgrade.
Account Growth: No Deceleration, "Exactly the Opposite"
For the second straight quarter an analyst pressed on the Chairman's prior hints of slowing account growth, and for the second straight quarter the data refuted it. IBKR added its four millionth customer, and year-to-date net new accounts (790,000) already exceed all of 2024. The Chairman did not hedge this time.
"We have not seen any deceleration. As a matter of fact, we saw exactly the opposite. And we expect that to continue." — Thomas Peterffy, Founder & Chairman
Assessment: The compounding flywheel is, if anything, speeding up at the four-million-account scale, sourced organically across all regions and client types without bonuses or incentives. That organic quality is what makes the growth durable and high-margin.
The Record 79% Pretax Margin
The pretax margin reached 79%, a firm record, on revenue up 21% against costs that barely moved. Compensation dropped to 10% of net revenue, execution/clearing fell 21%, and headcount rose just 5%. The automation-first model is the entire explanation, and management reiterated that it does not allocate fixed project budgets but staffs opportunistically.
"If we want to do something, we're fully in ... we do not allocate budgets to certain activities ... that has been the modus operandi since Thomas started this firm decades ago." — Milan Galik, CEO
Assessment: An 80%-handle pretax margin at a scaled, regulated financial institution is close to unique. There is little room for the margin to rise much further, but the durability of these levels is what underwrites the earnings power.
Client Equity Past $750B and Compounding Faster
Customer equity surpassed $750B (+40% YoY vs. +16% for the S&P), and management highlighted the accelerating doubling time: four years to go from $250B to $500B, just over one year to add the next $250B. Customer cash hit a record $154.8B.
Assessment: The gap between IBKR's equity growth and the index makes clear that net new asset gathering, not just market appreciation, drives the balance sheet. That asset base is the fuel for both NII (cash) and sec lending (lendable inventory), so its acceleration compounds the revenue algorithm.
Margin Loans at an All-Time High
Customer margin loans rose to $77.3B (+39% YoY, +20% QoQ), an all-time high. The Chairman tied it to rising risk appetite in a momentum-driven market and, tellingly, contrasted it favorably with cheap-option speculation, which IBKR sees as lower-quality revenue because it can go bad on clients.
"When we see the margin balances going up, that's fantastic. We directly benefit from that to the bottom line ... high margin numbers, we like them a lot." — Thomas Peterffy, Founder & Chairman
Assessment: Margin balances are a high-quality, high-incremental-margin revenue source, but they are pro-cyclical; a market dislocation would shrink them quickly. A welcome tailwind now, and a sensitivity to keep in view if markets turn.
Securities Lending Roughly Doubled
On a like-for-like basis (reclassifying cash-collateral interest), securities-lending net revenue would have been $314M versus $156M a year ago, a near-doubling driven by a larger lendable inventory, more short activity, the fully-paid lending program, and a pickup in IPO/M&A specials.
Assessment: Sec lending scales with the account base (more inventory) and gets episodic kickers from hot names; management again declined to extrapolate the specials, which is the right discipline. The structural component grows with the franchise; the specials are upside.
S&P 500 Inclusion and Prime-Brokerage Standing
IBKR joined the S&P 500 this quarter, a milestone with real consequences (index-fund demand, institutional visibility), and rose to #4 among prime brokers by number of hedge funds serviced, trailing only Goldman Sachs, Morgan Stanley, and JPMorgan.
Assessment: Index inclusion broadens the shareholder base and partially addresses the float/liquidity concern from our initiation. The prime-brokerage ranking is evidence the institutional franchise is gaining real share against entrenched bulge-bracket names, a higher-quality, stickier client cohort.
Crypto Roadmap Gets Concrete Dates
The crypto build-out now has a schedule: stablecoin account funding live in October, European crypto trading via Zero Hash once it secures a Dutch license (expected Q4), crypto asset transfers by year-end, and staking in early 2026. The Chairman identified the asset-transfer capability as the key unlock, since the inability to move existing crypto holdings without realizing gains has kept clients elsewhere despite IBKR's lower pricing.
"If they already have cryptocurrency positions with embedded ... unrealized tax gains, the only way for them to come to us now would be to sell ... With the asset transfer, they will not have to do that. So when we put online the crypto asset transfers, I would hope to see an increase in the activity." — Thomas Peterffy, Founder & Chairman
Assessment: Crypto volumes are up sharply off a small base (+87% QoQ, +5x YoY). Still optionality rather than a thesis driver, but the asset-transfer unlock by year-end is a concrete, near-term catalyst worth tracking.
Prediction Markets and the Sports Question
On ForecastEx, the firm clarified it is not entering sports betting directly (awaiting a court decision on state regulatory exclusivity) but is taking election, economic, and climate contracts global, and will let introducing brokers carry sports contracts on its exchange. Open contracts grew 27% sequentially to 8,200+, with volumes up 165%.
Assessment: A disciplined, differentiated approach: IBKR builds the regulated exchange infrastructure and lets partners take the consumer-facing risk on sports. Small today, but a genuine platform asset with optionality if event contracts become a durable category.
China Regulatory Clampdown (the One Negative)
Chinese regulators clamped down on foreign brokers acquiring mainland accounts; IBKR now requires applicants to prove residence outside the mainland. Inflows from the region have slowed but management characterized the impact as immaterial to overall figures.
Assessment: A modest, contained headwind in one geography, offset by strength everywhere else. Worth monitoring for escalation, but not thesis-relevant at current magnitude.
Outlook & Rate Sensitivity
IBKR again issued no formal guidance; the CFO explicitly declined to give 2026 expense guidance, calling the current quarter "a typical run rate." The updated rate-sensitivity table is the de facto outlook for the key line.
| Scenario (annualized NII impact) | Q3 estimate | Q2 estimate |
|---|---|---|
| 25bp US Fed funds cut | −$77M | −$73M |
| 25bp cut across non-US benchmarks | −$35M | −$8M |
| 100bp cut across all benchmarks | −$417M | −$335M |
| Realized: NII through the cut | +21% YoY, record | +9% YoY |
The base is Sept 30 balances with Fed funds effective at 4.09%; ~29% of interest-sensitive balances are non-USD. The rising absolute sensitivity is purely a function of a larger balance base, and the realized result (a 21% NII gain through an actual cut) is the number that matters more than the static sensitivity.
Implied setup: Continued Fed cuts are the base case into 2026; each 25bp clip now costs ~$77M of annual NII. The offset required, roughly $1B+ of incremental average interest-earning balances per 25bp, looks comfortably achievable given 33% client-cash growth and 39% margin-loan growth, though it tightens if the cut path steepens.
Our framing: We now model NII as a grower through the cut cycle rather than a line at risk, with balance growth as the base case and the pace of cuts as the swing factor. That reclassification is the analytical core of the upgrade.
Analyst Q&A Highlights
Where the Long-Promised Account Deceleration Went
For a second consecutive quarter an analyst asked, pointedly, where the deceleration the Chairman had floated at a spring conference actually was, given growth showed no sign of slowing through September.
Q: "At a May conference, Thomas talked about a potential deceleration in account growth, and my question is, where is it? Because account growth is again showing no signs of slowing down through September."
— Craig Siegenthaler, Bank of America
A: "We have not seen any deceleration. As a matter of fact, we saw exactly the opposite. And we expect that to continue."
— Thomas Peterffy, Founder & Chairman
Assessment: The hedge is gone. Last quarter management sandbagged the outlook; this quarter the Chairman affirmed acceleration outright. Coming from a famously conservative founder, the unhedged "we expect that to continue" is a meaningful positive signal on the durability of the growth engine.
The Rising Rate Sensitivity, Decoded
An analyst probed why the disclosed dollar sensitivity to rate cuts keeps stepping up, and whether the growing non-USD share of balances was the cause.
Q: "It looks like that stepped up a little bit from what you had disclosed last quarter ... the percentage of balances that are not in US dollars is going up. Can you unpack what's going on there and what is impacting that sensitivity going forward?"
— Benjamin Budish, Barclays
A: "As this business grows for us ... bigger balances also mean more balances that are fully interest rate sensitive ... but that's good news for us because it means the baseline is a lot higher than it was before."
— Paul Brody, CFO
Assessment: The key reframe for the stock. A bigger sensitivity number is the byproduct of a bigger, faster-growing balance base, which is the source of the NII record. The exposure and the growth are two sides of the same coin.
Margin-Loan Growth and the Quality of Risk Appetite
An analyst asked about the 20% sequential jump in margin loans, the customer mix behind it, and whether it was sustainable amid month-to-date choppiness.
Q: "Margin loans were up 20% quarter over quarter. Could you provide color on the breakout of the types of customers that drove that growth ... and your expectations around margin loan growth from here? Do you think it's sustainable?"
— Patrick Moley, Piper Sandler
A: "The appetite for risk has grown ... Our margin balances are at their all-time high. Should there be a sudden dislocation in the market, I would expect that it is likely to decrease ... high margin numbers, we like them a lot."
— Thomas Peterffy, Founder & Chairman
Assessment: Candid on both the upside and the cyclicality. Management welcomes margin growth as high-quality, bottom-line-accretive revenue, and explicitly prefers it to exposure-fee revenue from cheap option bets. The honest flag that balances would fall in a dislocation is the right risk framing.
Securities-Lending Trajectory and Capital-Markets Activity
The opening question explored whether a broader pickup in capital-markets activity would sustain the securities-lending strength.
Q: "You're starting to see hard-to-borrow specials come back on the back of capital markets activity ramping ... what impact could we expect if we were to see capital markets activity ramp, and what kind of benefits could we expect?"
— Brennan Hawken, BMO Capital Markets
A: "I wouldn't exactly call it cyclical ... the securities lending revenue is based on a general increase in our customer balances and shorting, and then on top of that, we see these specials ... it's not predictable, but we have spent a lot of time building out our systems to optimize and take advantage when these opportunities present themselves."
— Paul Brody, CFO
Assessment: Management separates the structural driver (a growing lendable book) from the episodic one (specials), and refuses to model the latter as a trend. That distinction is exactly how investors should think about the line: bank the growth, treat the specials as upside.
Crypto Asset-Transfer Timing and Rollout
An analyst pressed for the specific timing of crypto token transfers in and out of IBKR accounts and how the rollout would vary by geography.
Q: "When will clients be able to transfer tokens in and out of their IBKR accounts? And how will the rollout work by geography?"
— Craig Siegenthaler, Bank of America
A: "Funding with stablecoins in October. Crypto asset transfers by the end of the year. Staking maybe the beginning of next year ... It depends somewhat on our partner, Zero Hash."
— Thomas Peterffy, Founder & Chairman
Assessment: Concrete dates on the unlock management itself calls the binding constraint on crypto share. A year-end asset-transfer launch is a near-term, trackable catalyst; if it drives the inflow management hopes for, crypto could graduate from optionality to a measurable contributor in 2026.
China Account-Opening Restrictions
An analyst asked about geographic acquisition trends and specifically the impact of tighter Chinese regulation on account opening.
Q: "The regulatory environment in China around account opening has weighed on and will continue to impact your growth in this region?"
— James Yaro, Goldman Sachs
A: "Chinese regulators clamped down on foreign brokers acquiring accounts in Mainland China ... we now have to ask the account applicants to prove ... a residence outside of the Mainland ... It is a smaller number than before, but it is not something that would materially impact our figures."
— Thomas Peterffy, Founder & Chairman
Assessment: A real but contained headwind, openly acknowledged and sized as immaterial. Diversification across regions and client types is precisely what insulates the overall growth rate from a single-geography regulatory shift.
What They're NOT Saying
- No 2026 expense guidance: the CFO explicitly declined, pointing only to the current quarter as a "typical run rate." Investors get a run-rate anchor but no forward cost framework.
- Margin-loan customer mix undisclosed: management openly said it tracks the breakdown internally but will not share it, leaving the composition of a record, pro-cyclical balance opaque.
- Crypto still unsized: sharp growth rates were quoted, but no revenue or account contribution, confirming it remains immaterial despite the roadmap progress.
- The GAAP/adjusted EPS gap got light framing: a one-time investment gain lifted GAAP EPS to $0.59 versus $0.57 adjusted; the "beat" reads larger on the headline GAAP figure.
- Spread pass-through into further cuts: management lowered the customer rate to 3.59% but gave no framework for how much of future cuts it will absorb versus pass on, keeping the net-spread path uncertain.
- China impact downplayed without specifics: the regional slowdown was called immaterial, but no figures were offered to let investors verify the magnitude.
Market Reaction
- Pre-print setup: IBKR closed at $68.52 entering the print, near all-time highs, up 55.1% year-to-date and 86.7% over the trailing twelve months. The bar was high and the stock was richly positioned.
- Reaction-day move: after a modest aftermarket pop, the stock faded and closed the next session (Oct 17) down 3.3% at $66.23 (−$2.29) on 1.9x normal volume, against an S&P that was up 0.5%. The decline was idiosyncratic, a sell-the-news fade rather than a fundamental verdict.
There was nothing in the print to justify a fundamental sell-off: records on every key line, a record margin, and the NII proof point. The fade reflects positioning into a high bar after a near-double in twelve months, plus some normalization of the GAAP beat to the cleaner $0.57 adjusted figure. For a fundamentals-driven investor, a 3.3% pullback on a quarter this strong is a gift, and it is part of why we are comfortable upgrading rather than waiting.
Street Perspective
Debate: Has the NII-Through-Cuts Question Been Answered?
Bull view: Definitively. NII grew 21% to a record through the Fed's first cut because balances are compounding 30%+; the rate-cut bear case has been falsified in real time, and the larger sensitivity number just reflects a larger, faster-growing base.
Bear view: One quarter through one 25bp cut is not the whole cycle; if the Fed cuts several more times and account growth eventually slows, the offset gets harder, and the customer-rate pass-through cannot continue indefinitely without hurting acquisition.
Our take: The bulls have the better of it now. We do not claim the question is closed for all time, but the burden of proof has shifted decisively, and the realized result outweighs the static sensitivity. This is why we move to Outperform.
Debate: Is the Stock Cheaper After the Pullback?
Bull view: Earnings rose while the stock fell, so the multiple de-rated to roughly 28x; a business compounding revenue 21%, accounts 32%, and equity 40% at a 79% pretax margin is attractive at that price.
Bear view: ~28x is still a premium multiple, and after an 87% twelve-month run the stock can stay volatile and range-bound even if fundamentals are excellent; quality is priced in.
Our take: We side with the bulls on the improved entry. The combination of a confirmed thesis and a lower price is the textbook setup for an upgrade. The multiple is not cheap in absolute terms, but it is reasonable for this growth-and-margin profile, and the risk/reward has clearly improved versus our initiation.
Debate: Can Account Growth Hold at the Four-Million Scale?
Bull view: It is accelerating, not slowing, sourced organically across all regions and client types; the doubling-time compression in client equity shows the flywheel strengthening with scale.
Bear view: The law of large numbers must eventually bite, and a single regulatory shift (as in China) shows growth is not immune to external shocks.
Our take: Two consecutive quarters of the Chairman refuting the deceleration narrative, plus year-to-date adds already exceeding all of 2024, make the bull case the base case. Geographic and client-type diversification insulates the aggregate from single-market shocks.
Model Update
This quarter's results lead us to revise our initiation framework in the firm's favor, principally by reclassifying NII as a grower through the cut cycle.
| Driver | Prior (Q2) view | Updated view | Reason |
|---|---|---|---|
| NII trajectory | At risk into cuts | Grower through cuts | +21% record through the first cut; balances swamp rate drag |
| Account growth | ~25% forward | ~28–30% | No deceleration; YTD adds > all of 2024 |
| Pretax margin | 72–75% | 76–79% | Record 79%; comp down to 10% of net rev |
| Securities lending | Lumpy kicker | Structural grower + specials | Like-for-like doubled YoY on larger book |
| Effective tax rate (public co) | ~18% | ~19% | 19.4% this quarter, in range |
Valuation framing: At $66.23, IBKR trades at roughly 28x an annualized run-rate near $2.36 GAAP (about 29x on the $2.28 adjusted run-rate), a de-rating from the ~30x at our initiation despite higher earnings. For a franchise compounding revenue in the low-20s with an 80%-handle pretax margin and NII now proven through cuts, that multiple is reasonable and the risk/reward favorable over the next twelve months.
Thesis Scorecard Post-Earnings
Grading the standing thesis established at initiation against this quarter's print and call.
| Thesis Point | Status | Notes |
|---|---|---|
| Bull #1 — Secular account/equity compounding | Confirmed | 4M+ accounts, +32%; equity past $750B, +40%; growth accelerating |
| Bull #2 — Industry-leading margins via automation | Confirmed | Record 79% pretax margin; comp to 10% of net rev |
| Bull #3 — Fortress balance sheet, capital-return optionality | Confirmed | $19.5B equity, no debt; added to S&P 500 |
| Bear #1 — NII rate-cut sensitivity | Challenged (now contained) | NII +21% to a record through the Fed's first cut; the key delta |
| Bear #2 — Full valuation after the run | Easing | De-rated to ~28x as stock fell on the beat; risk/reward improved |
| Bear #3 — Ownership structure / small float | Neutral | S&P 500 inclusion broadens the base; overhang reduced at the margin |
Overall: Thesis strengthened. Every bull pillar confirmed, the central bear point (NII through cuts) neutralized, and the valuation concern eased by the pullback. The only remaining watch items are the pace of further cuts and the pro-cyclicality of margin loans.
Action: Upgrade to Outperform from Hold. Accumulate. Maintain triggers: NII continuing to grow through subsequent cuts, account growth holding, crypto asset-transfer launch landing on schedule. Downgrade triggers: account-growth rollover, a steeper-than-expected cut path that finally outruns balance growth, or a re-rating back to a full multiple without commensurate fundamental progress.