TSMC Q3 2026 Results: Record $23.9B Profit, 44% Growth Outlook, and Why the Stock Still Fell

TSMC’s Q3 2026 results: net profit rose 68.7% year over year to a record NT$763.06 billion (about $23.9 billion) on revenue of $46.72 billion, beating its own guidance by roughly $920 million. The company also guided Q4 revenue to $52.3–54.3 billion and raised its full-year 2026 growth forecast to about 44% in US dollar terms.

That is the sixth straight quarter of record profit for the company that makes almost every advanced chip you have heard of, from Nvidia’s AI accelerators to Apple’s iPhone processors. I read through the October 15 filing and the earnings call transcript. The headline numbers are huge, but they are not the interesting part. The interesting part is that the stock fell anyway, and the reasons say a lot about where the chip industry goes next.

TSMC Q3 2026 results at a glance

Going into the quarter, TSMC had told investors to expect revenue between $44.6 billion and $45.8 billion. It cleared the top of that range comfortably. Profit also came in a few percent ahead of the analyst consensus compiled by LSEG. A net margin above 51% is absurd for a manufacturing business. For every dollar of wafers TSMC sold last quarter, more than half a dollar ended up as profit.

Where the money came from: AI, and then everything else

TSMC breaks revenue out by “platform,” and this quarter the split was lopsided:

• High-performance computing (HPC): 68% of revenue, up 22% from Q2. This is the bucket that holds AI accelerators, data center CPUs and networking chips.
• Smartphones: 21% of revenue, up 10% quarter over quarter, helped by the fall flagship cycle.
• Automotive: 4%, up 23%.
• IoT: 4%, up 5%.
• Digital consumer electronics: 1%, down 12%.

Back in Q2, HPC was 66% of wafer revenue. Two points in a single quarter doesn’t sound like much until you remember the base is now a $46 billion business. The phone side is still growing, but it is turning into the side dish. If you want a sense of how fast this happened, go back to our July piece on TSMC’s record June revenue. That month alone was about $14.6 billion. This quarter averaged more than $15 billion a month.

By process node, 2-nanometer chips made up 8% of wafer revenue in only their third quarter of real volume. 3nm was the biggest single node at 33%, 5nm was 28% and 7nm was 10%. Put together, 79% of wafer revenue came from 7nm or better. Five years ago, a figure like that would have sounded like a typo.

What C.C. Wei said about AI demand

CEO C.C. Wei described AI demand as “extremely robust” and said it still exceeds what TSMC can supply. The company did not formally update its long-range forecast that AI accelerator revenue will grow at a compound annual rate in the mid-to-high 50s percent from 2024 to 2029. Wei did say the real number would probably be higher, though.

He also flagged a new source of demand. Agentic AI, meaning software agents that carry out multi-step tasks, needs a lot of ordinary CPU horsepower to orchestrate the work. TSMC counts those CPUs outside its narrow “AI accelerator” definition. So the official AI figure understates how much of the business is really AI-driven.

One line from the call is easy to miss. Wei noted that rising component prices are pressuring consumer and price-sensitive segments. Read that next to the memory crunch we have been tracking all year, with ASML warning just this week that it cannot fully meet 2027–28 demand. The picture is consistent. AI buyers are soaking up capacity at every layer of the supply chain, and the costs are leaking out to everyone else.

So why did the stock drop?

TSMC shares slipped after the report even though almost every number beat. I see three reasons, and none of them is about demand.

1. Margins are drifting down, on purpose. Gross margin fell 1.3 points from Q2 to 66.4%, mainly because 2nm is still early in its ramp and new nodes always cost more per wafer until yields mature. Q4 guidance of 65–67% suggests that pressure isn’t going away yet.

2. Overseas fabs are expensive. Management said the dilution from factories outside Taiwan is running at about 2 points of gross margin now. It expects that to widen to 3–4 points later in its five-year planning window. Building chips in Arizona, Japan and Germany is a political and customer necessity, but it is not cheap. Arizona’s second fab is now scheduled for volume production in Q3 2027, slightly ahead of plan.

3. Spending keeps climbing. TSMC reaffirmed $60–64 billion in capital spending for 2026. It also said 2026–2028 capex will be “even more significantly higher” than the previous three-year stretch. Investors love demand but get nervous when the bill for meeting it keeps growing. When a stock has run this hard, “beat and raise” is the baseline. The market is now trading margins and cash flow.

My take: none of this changes the story. A company that can tell you it expects 44% growth in a year, on a base this large, while guiding margins in the mid-60s, is not in trouble. The selloff reads like profit-taking dressed up as concern. Also, this is a news report, not investment advice. I’m not telling you to buy or sell anything.

The roadmap: 2nm doubles, A14 arrives

The forward-looking details matter more for the gadgets you will buy over the next two years than this quarter’s profit:

• N2 capacity more than doubles in 2027. 2nm entered high-volume production in Q4 2025, and the next wave of flagship phone and laptop chips will lean on it hard.
• A14 risk production in 2027, volume in 2028. Management expects A14 to become an even bigger node than N2.
• Two new 3nm fabs in Tainan start volume production in the first half of 2027 and the first half of 2028.
• Around 20 fabs are in progress worldwide, including a 3nm line in Japan’s second fab, planned for 2028.
• CoWoS advanced packaging, the bottleneck for Nvidia-class accelerators, now ships in 5x reticle size, with 9x and 14x in development. TSMC is also working with GlobalFoundries on interposers to ease a back-end shortage.

On pricing, TSMC stayed vague. Wafer pricing is “strategic,” varies by node and location, and US-made wafers will be priced differently from Taiwan-made ones. That is a polite way of saying American-made chips will cost more. If you have followed Samsung Foundry’s price hikes this year, you know the whole foundry market is moving in one direction.

What this means for people who just buy tech

If you don’t own TSMC stock, here is why the report still matters to you. When the world’s most important chip factory is booked solid by AI customers paying top dollar, everyone else waits longer and pays more. You can see it already in GPU pricing, memory and SSD prices, and laptop list prices creeping up.

The 2nm ramp is the good news. More capacity on the newest node means next year’s phones and laptops should get the efficiency gains on schedule. But I wouldn’t expect those devices to get cheaper. TSMC’s margins, Wei’s warning about component costs and the memory squeeze all point the same way.

The full numbers are in TSMC’s Q3 2026 earnings release filed with the SEC. It’s short and readable if you want the primary source.

Frequently asked questions

How much profit did TSMC make in Q3 2026?

TSMC reported net income of NT$763.06 billion, roughly $23.9 billion, for the quarter ended September 30, 2026. That is up 68.7% from a year earlier and up 8% from Q2, the company’s sixth consecutive record quarter.

What is TSMC’s Q4 2026 guidance?

TSMC expects fourth-quarter revenue of $52.3 billion to $54.3 billion, gross margin of 65% to 67% and operating margin of 56.5% to 58.5%, based on an exchange rate of 31.8 Taiwan dollars per US dollar.

Why did TSMC stock fall after beating earnings?

Investors focused on margins and spending rather than demand. Gross margin dipped 1.3 points on the early 2nm ramp, overseas fabs are diluting margins by about 2 points, and capital spending is set to rise sharply through 2028.

How much of TSMC’s revenue comes from AI?

TSMC doesn’t report a single AI number per quarter. High-performance computing, which includes AI accelerators and data center chips, made up 68% of Q3 2026 revenue. Smartphones were 21%.