$21.7bn Guided Against $20.8bn Implied (2 September 2026): Broadcom Beat Every Number in Its Own Arithmetic — and the Shares Fell 4% After Hours

Broadcom reported third-quarter revenue of $29,591 million on Wednesday 2 September 2026, above both its own $29.4 billion guide and the $29.43 billion consensus, with AI semiconductor revenue of $16.7 billion against the $16.0 billion it had promised in June. It then guided fourth-quarter AI revenue to $21.7 billion — roughly $0.9 billion above the figure its own full-year statement had implied by subtraction. The shares closed the regular session at $367.24 and traded at $352.50 after hours, 4.01% lower at 4:25 p.m. Eastern. Every number cleared its bar and the price went the other way, which is the second consecutive quarter this has happened and the thing actually worth explaining.

What actually happened

The release landed at 16:15 Eastern on 2 September, covering the fiscal quarter that ended on 2 August.

Consolidated net revenue was $29,591 million, up 86% year on year from $15,952 million. Semiconductor solutions delivered $20,839 million, up 127%, and now represents 70% of the company against 57% a year ago. Infrastructure software delivered $8,752 million, up 29%, and has fallen from 43% of revenue to 30% — not because it shrank, but because the semiconductor half nearly doubled around it.

GAAP operating income was $15,955 million, up 171%. Non-GAAP operating income was $20,095 million, up 92%. GAAP net income was $13,088 million and GAAP diluted EPS $2.68; on a non-GAAP basis, $16,372 million and $3.32. Cash from operations was $14,197 million against capital expenditure of $532 million, producing $13,665 million of free cash flow — 46% of revenue, up 95% year on year. The board declared a quarterly dividend of $0.65 per share, payable 30 September to holders of record on 21 September.

Against the guide issued on 3 June, that is a beat on the consolidated line by $191 million, a beat on semiconductors by roughly $339 million, and a miss on infrastructure software by roughly $148 million. Against compiled analyst estimates of $29.43 billion and $3.24, it is a beat on both.

The AI line is the one management led with. "Demand for our custom AI accelerators and networking continues to be very strong. Q3 AI semiconductor revenue of $16.7 billion grew 221% year-over-year, and 54% quarter-over-quarter," chief executive Hock Tan said in the release. That $16.7 billion is 56% of total company revenue and 80% of the semiconductor segment — the first quarter in which the AI line alone is comfortably larger than everything else Broadcom does combined.

Then the forward number: "In Q4 the momentum continues, and we expect AI semiconductor revenue to accelerate to $21.7 billion, up 236% year-over-year." Consolidated fourth-quarter revenue was guided to approximately $34.8 billion, up 93%, with non-GAAP operating income at approximately 66% of revenue. Chief financial officer Amie Thuener framed that last figure as "flat from a year ago."

The bar the arithmetic set, and the bar the market marked against

This is the part worth being precise about, because the two bars gave opposite answers.

The arithmetic bar was fixed in June and required no forecasting. Tan stated full-year fiscal 2026 AI semiconductor revenue of $56 billion. Against reported figures of $8.4 billion and $10.8 billion and a guided $16.0 billion for the third quarter — $35.2 billion — the fourth quarter was implied at roughly $20.8 billion to keep that statement intact. That was the bar available to anyone before the release.

Both halves then cleared it. The third quarter delivered $16.7 billion rather than $16.0 billion, putting the nine-month total at $35.9 billion and leaving only $20.1 billion still required. The fourth-quarter guide came in at $21.7 billion — $0.9 billion above the pre-release bar and $1.6 billion above what the $56 billion statement now needs. Add the four quarters and the implied full-year total is approximately $57.6 billion rather than $56 billion. On the company's own stated terms, that is an upgrade delivered by arithmetic rather than by announcement.

The market's bar gave a different answer within ten minutes. The stock had closed the regular session at $367.24, down 0.66% on the day; by 4:25 p.m. Eastern it was quoted at $352.50, down 4.01%.

Where the fourth-quarter growth is — and where it is not

The consolidated guide contains a subtraction that is easy to miss and is the most checkable candidate for what the release changed.

Fourth-quarter revenue is guided to approximately $34.8 billion. AI semiconductor revenue within it is guided to $21.7 billion. Everything else — non-AI semiconductors plus the whole infrastructure software business — is therefore implied at about $13.1 billion.

In the quarter just reported, that same non-AI aggregate was $29,591 million less $16.7 billion, or roughly $12.9 billion. The implied sequential growth in everything that is not an AI accelerator is therefore around 1.6%, against 29.9% sequential growth in the AI line and 17.6% for the company as a whole.

That is the shape of the business now, stated plainly: one line is compounding at nearly 30% a quarter and the remaining $13 billion is approximately flat. Neither fact is a judgement about the company — it is what the guide says when you do the subtraction. It also means the margin mix pressure has a further leg, which the guide concedes: non-GAAP operating margin steps down from the 67.9% just delivered to approximately 66%, so guided operating income of roughly $22.97 billion grows 14.3% sequentially while revenue grows 17.6%.

The margin line the preview flagged, now checkable

One derived figure in this piece can be marked exactly, and it held.

The June guide paired a gross margin of approximately 74% with an operating margin of approximately 67%, which implied non-GAAP operating expense of roughly $2.06 billion — slightly below the $2,181 million Broadcom spent in the second quarter, on about a third more revenue.

The release delivered non-GAAP gross margin of $22,191 million on $29,591 million, or 75.0% — a point better than guided, though still down from 77.1% in Q2 on AI product mix. Non-GAAP operating income was $20,095 million, giving an operating margin of 67.9%. The difference, implied non-GAAP operating expense, is $2,096 million.

So operating costs fell $85 million in absolute dollars while revenue rose 33.4% sequentially, taking operating expense from 9.8% of revenue to 7.1%. That is the mechanism absorbing the gross-margin decline, and it is scale rather than a spending pause reversing later — though a single quarter cannot distinguish the two, and the guided step down to 66% next quarter suggests the offset is not infinitely repeatable.

$57.6bn, and the bridge to $100bn

The fiscal 2027 target is the number the release did not contain. "In excess of $100 billion" is a statement management makes on its calls, not a line in the earnings tables, and no revision to it appears in the results document.

The arithmetic around it moved anyway. A fourth quarter at $21.7 billion annualises to $86.8 billion. Reaching "in excess of $100 billion" therefore requires roughly 15% of further growth on top of the run-rate the company is now guiding itself into — down from the roughly 20% implied by the $20.8 billion figure derived before the release.

The gap between $86.8 billion annualised and $100 billion is not automatic. It rests on 2027 deployment schedules at named counterparties — the Google TPU agreement, the Anthropic capacity commitments beginning in 2027, OpenAI's contracted 1.3 gigawatts for 2027 inside a larger 10-gigawatt agreement, and Meta's MTIA X deliveries starting in the second half of 2027. Those are dates in contracts, not demand forecasts, which is precisely why the revenue line reports a delivery schedule rather than a demand signal, and why the market has learned to trade the forward statement instead of the print.

The cash line nobody marks

One number in this release deserves more attention than it gets, because it is the cleanest statement of where Broadcom sits in the AI buildout.

The company generated $13,665 million of free cash flow on $532 million of capital expenditure. Capex intensity is 1.8% of revenue. Its customers, meanwhile, are the entities carrying tens of billions of dollars of datacentre capex and the depreciation schedules that follow — the same asset-life and financing questions that run through the residual-value guarantees disclosed in Nvidia's filings.

That asymmetry is the fabless model doing exactly what it is designed to do, and it survived a working-capital build: trade receivables rose $2,859 million during the quarter, to $13,707 million, as shipments accelerated, and free cash flow was still 46% of revenue. Cash and equivalents closed at $23,975 million against $19.6 billion three months earlier, while long-term debt fell to $57,167 million from $61,984 million at the fiscal year-end.

The channel to what you actually trade

Broadcom is one of the largest weights in the US large-cap and Nasdaq-100 benchmarks, so the arithmetic reaches US500/ES and NAS100/NQ before it reaches anything else, with the semiconductor complex and the AI networking supply chain as second-order channels. It landed two days before the S&P 500's September rebalance on 4 September, and it is the second of the large custom-silicon quarters to show the same structure as Nvidia's, where a far broader customer base leaves the realised quarter genuinely more informative than it is here.

The currency channel remains close to nil, and it is more useful to say so than to invent one. A single supplier's quarterly revenue recognition does not touch the interest-rate, growth, inflation, positioning or commodity factors that determine relative currency strength. The AI capital-expenditure cycle does reach the macro data — through fixed investment, through competition for capital at the long end of the curve, and through electricity demand — but over quarters and in aggregate, which is the territory of the long-end term-premium selloff rather than of any one company's results. The live factor read for the dollar sits on the USD currency page; how the meter is built is set out on the about page.

What would change the picture from here

A fiscal 2027 figure with a number attached. "In excess of $100 billion" has now been carried through several quarters without a firmer bound. Replacing it with a specific figure, in either direction, remains the largest single piece of information available in this name — and it is a call statement rather than a reported line, which is why it is not resolved by the release.

The non-AI $13.1 billion. If the aggregate that is not AI accelerators stays flat while AI compounds, the consolidated growth rate converges on the AI growth rate and the margin mix keeps compressing toward the accelerator margin. That is visible one quarter at a time in the subtraction above, and it needs no forecast to track.

Whether operating expense holds near 7% of revenue. The absorption of three points of gross margin by operating leverage is what kept the operating margin at 67.9%. The guide takes it to approximately 66% next quarter. Whether that is the floor or the first step is the difference between durable scale and a timing effect.

None of that is a prediction about how any of it resolves. It is a list of the places where new information can enter a report that had, by design, told the market nearly everything else three months in advance — and where the price, for the second quarter running, marked a bar of its own.

Educational macro context only — not investment advice.