TSMC 2nm hits 8% of wafer revenue. Demand still above supply

WIRE · SEMICONDUCTORS · TAIWAN · Data as at 15 Oct 2026

TSMC printed third-quarter results on 15 October 2026: NT$1,494.24 billion of sales (US$46.72 billion), 2-nanometer at 8% of wafer revenue, and gross margin 66.4% on the N2 ramp. Fourth-quarter revenue is guided at US$52.3 billion to US$54.3 billion. On the semiconductors layer, the open question from the September sales Wire was the margin. That number is in. The stuck step did not move: chairman C.C. Wei said demand is still above supply.

What happened

Huang said the 130 basis-point sequential drop in gross margin, to 66.4%, was primarily the initial 2nm ramp. That print sits in the 65–67% band TSMC gave in July. Inventory days fell 5, to 82, "primarily due to the increase in wafer shipment."

Why cash cares

The 8 October sales note already had the quarter above July's US$ range. What 15 October adds is how much of that TSMC keeps, and what the mix is. It keeps 66.4 cents of gross profit per dollar of sales — less than the second quarter (67.7%) because N2 is expensive to ramp, more than a year earlier (59.5%).

Our arithmetic, not a TSMC figure. Wafer shipments rose 3.2%. NT-dollar sales rose 17.6%. Revenue per 12-inch-equivalent wafer is about NT$333,800 this quarter against about NT$293,000 in the second (+14%). The extra money is mix, not more wafers on the dock. 2nm's share of wafer revenue went from 3% to 8% in one quarter; 3nm from 30% to 33%. Five-nanometer gave up five points. That is the N2 clock on the cover: the new node is now large enough to move the average selling price and the margin.

Q4 is the steep part. Midpoint of the revenue guide is US$53.3 billion: +14% sequential and +58% year-on-year, as Huang printed. Gross margin at the midpoint is 66%, another 40 basis points down, from the steep N2 ramp and from overseas fabs. Overseas-fab dilution, he now says, is running closer to 2%, and will widen to 3–4% in the latter part of the five-year overseas build. The cash still prints. The mix is what binds the margin.

Capex year-to-date is US$40.64 billion. Against US$60–64 billion for the year, that leaves about US$19–23 billion for the fourth quarter — our arithmetic. Huang said 2026–2028 capex will be "significantly higher" than the past three years, and that tool-price inflation is "real."

What wafer mix actually is

A foundry is not paid by the wafer-count headline. It is paid by which node that wafer is, and which platform the die sits in. See what TSMC does and EUV lithography, explained. N2 is an EUV-heavy node. It entered high-volume manufacturing in the fourth quarter of 2025, is ramping in Hsinchu and Kaohsiung, and Wei said N2-family annual capacity should more than double in 2027. A14 is on track for risk production in 2027 and volume in 2028, and he expects it to be a bigger node than N2.

HPC is 68% of net revenue. Smartphone is 21%. North America is 79% of sales. The die still needs a package. Wei said TSMC is in production at 5× reticle size, working on 9× and 14×, and that CoWoS remains the number-one choice. He also said there is "a little bit shortage on the back end," which is why the GlobalFoundries interposer deal exists. Front-end mix printed today. Packaging is still a second clock.

The second-order read

Who gets paid. TSMC, on N2 and N3 wafers that now dominate the mix, and on CoWoS slots it still calls the customer's first choice. Toolmakers, on a US$60–64 billion 2026 budget that is not being cut. ASML stays on the scanner clock we already wrote: Wei's High-NA plan is still 2030, with a 12-inch photomask by 2031.

Who pays. Customers in the North America book. They pay more per wafer as the mix walks from 5nm toward 3nm and 2nm, and they pay for the package. Wei said pricing is "strategic" and US production will be priced differently from Taiwan.

Who waits. Anyone who needed TSMC to say the gap had closed. Wei: demand is "extremely robust," there is "no sign of slowdown," the AI-accelerator CAGR previously guided at mid-to-high 50s from 2024 to 2029 "probably will be higher," and demand is still far above what TSMC can supply. He will not let customers sublet or auction slots.

Upstream. EUV scanners and process tools. The ASML 2027–2028 supply print is that queue. Siemens's mask-compute print sits on the later High-NA clock.

Downstream. Finished accelerators, then halls. TSMC now sends its own people to check US data-centre build-out and power. Wei: "so far so good." Power has not, on his print, cut the customer forecast. Consumer end markets are "challenged." Leading-edge is not.

Stuck step. Leading-edge wafer supply versus assessed demand — with N2 mix moving the margin this quarter, and CoWoS-class packaging still short on the back end. Two clocks. Today's print pays TSMC on the first. It does not clear the second.

Two cautions

8% is wafer revenue, not a dollar of HPC. TSMC does not split 2nm dollars. Do not turn 8% of wafer mix into a named customer's cheque. HPC at 68% of net revenue is a different cut. Our per-wafer NT$ figures are arithmetic from sales and 12-inch-equivalent shipments, not an ASP TSMC printed.

Q4 is guidance, not a print. US$52.3–54.3 billion and 65–67% gross margin assume 31.8 NT$ to the dollar (the quarter just gone ran at 31.98). Wei's ~44% full-year USD growth and "probably higher" AI CAGR are judgements. Texas / Terafab remains "no solid conclusion"; any extra US fab, he said, would be TSMC-run. That is not today's capacity.

What would change the view

• A cut in the US$60–64 billion 2026 capex, or a 2027 budget that does not step up.
• Q4 gross margin below 65%, or a call that N2 dilution is worse than the steep-ramp line.
• Wei saying demand and supply have met, or that power, HBM or packaging has reduced the customer forecast.
• A named CoWoS or interposer volume date earlier than the 1H 2028 GF ramp.
• A printed High-NA pull-in before 2030.

What to watch

• TSMC October sales, 10 November 2026: whether the N2 mix keeps the sequential step-up inside the Q4 US$ range.
• 2027 capex, with the next quarterly call — Huang would not give it today.
• Arizona Fab 2 volume, guided Q3 2027, "slightly ahead"; Tainan 3nm H1 2027, extra Tainan 3nm H1 2028.
• N2-family capacity "more than double" in 2027 — a date check, not a 2026 wafer.
• Samsung full Q3, 29 October 2026, and hyperscaler prints 21–29 October: whether their cash still funds the book TSMC is building for.

Read: Semiconductors, EUV lithography, explained.

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Sources: TSMC press release, 15 Oct 2026. TSMC 6-K exhibit, 15 Oct 2026. TSMC 3Q26 management report, 15 Oct 2026. TSMC 3Q26 presentation, 15 Oct 2026. TSMC 3Q26 earnings conference, 15 Oct 2026. Prior Wires: September sales, ASML 2027–28, Siemens + cuLitho, GF interposers.

Not investment advice.