Post Highlights
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TSMC guided Q4 2025 gross margin at 59.0% to 61.0%.
TSMC reported Q4 2025 results on January 16, 2026. If you are not familiar with how the business is structured how wafer pricing works across process nodes, why TSMC spends $40+ billion annually on capex, or who the major customers are start with the business model overview first. This article assumes that context and focuses entirely on what happened last quarter and what it signals going forward.
TSMC spent $40.9B on capex in 2025 this is why no competitor has caught up
The number that actually matters
TSMC guided Q4 2025 gross margin at 59.0% to 61.0%.
It printed 62.3%.
That is a 1.3 to 3.3 percentage point beat on a metric TSMC has guided conservatively for 35 years. When a foundry running $40+ billion in annual capex exceeds its own margin guidance by that margin, there are only two explanations: pricing held stronger than modeled, or utilization ran higher than planned. In Q4 2025, TSMC's CFO Wendell Huang confirmed on the earnings call that it was both.
Revenue of $33.73 billion slightly beat guidance. Everyone expected that. The margin beat was the actual signal, and it tells you more about the underlying business than the headline number does.
Q4 2025 results
| Metric | Q4 2025 | Q4 2024 | YoY change |
|---|---|---|---|
| Revenue | $33.73B | $26.88B | +25.5% |
| Gross margin | 62.3% | 59.0% | +3.3pp |
| Operating margin | 54.0% | 49.0% | +5.0pp |
| Net income | NT$505.74B (~$16.3B) | NT$374.68B | +35.0% |
| EPS (per ADS) | NT$19.50 | NT$14.45 | +35.0% |
| ROE | 38.8% | 36.2% | +2.6pp |
vs guidance:
| Metric | Q4 2025 guidance | Q4 2025 actual | Beat |
|---|---|---|---|
| Revenue | $32.2-33.4B | $33.73B | Beat midpoint by $1.6B |
| Gross margin | 59.0-61.0% | 62.3% | Beat top of range by 1.3pp |
| Operating margin | 49.0-51.0% | 54.0% | Beat top of range by 3.0pp |
That 3.0 percentage point operating margin beat is not rounding error. It means advanced node fabs ran materially closer to full capacity than management modeled when they gave guidance 90 days earlier. A company running $40+ billion in annual capex and expanding across three continents does not beat operating margin guidance by 3 points accidentally.
Full year 2025: the complete picture
| Metric | FY2025 | FY2024 | YoY change |
|---|---|---|---|
| Revenue | $122.9B (NT$3,809B) | $90.1B | +35.9% (USD) |
| Gross margin | 59.9% | 56.1% | +3.8pp |
| Operating margin | 50.8% | 45.7% | +5.1pp |
| Net income | ~$55.4B (NT$1,717B) | ~$36.5B | +51.7% |
| EPSNT | $66.25 | NT$45.25 | +46.4% |
| ROE | 35.4% | 30.3% | +5.1pp |
| Free cash flow | NT$1.0 trillion | NT$869B | +15.2% |
| Cash and securities | $98B | -- | -- |
| Dividends paid | NT$467B | NT$363B | +28.6% |
Two things in that table deserve more attention than they typically get.
Net income grew 51.7% while revenue grew 35.9%. The gap is operating leverage working as intended fixed infrastructure costs spreading across a larger revenue base, converting incremental revenue into profit at an accelerating rate. That is what high-utilization foundry economics look like when the mix shifts toward advanced nodes.
Free cash flow crossed NT$1 trillion for the first time in TSMC's history. That specific threshold matters for a concrete reason: TSMC's 2026 capex of $52-56 billion the largest single-year semiconductor capital commitment ever can be funded entirely from existing cash without touching debt markets. The $98 billion in cash and marketable securities on the balance sheet at year end makes this a self-funded decision, which is genuinely unusual at this scale.
TSMC also outperformed its own industry by a significant margin. Management defines Foundry 2.0 as the total addressable foundry market including IDMs. Their estimate: Foundry 2.0 grew 16% in 2025. TSMC grew 35.9% in USD terms more than double the industry rate. That gap does not happen in a commodity business.
Why 62.3% is the right number to focus on
TSMC does not typically beat its gross margin guidance by this much. The company has a 35-year track record of conservative guidance. When it guides 59-61% and delivers 62.3%, something specific happened.
Three factors converged in Q4 2025.
Cost improvements at N3. As N3 volume scales, manufacturing efficiency improves fewer defect wafers, better process yield, lower cost per acceptable unit. Wendell Huang cited cost improvements at N3 explicitly as a driver on the earnings call.
Favorable foreign exchange. TSMC's costs are denominated in New Taiwan Dollars while revenues are primarily in US Dollars. TSMC guided Q4 at 30.6 USD/NTD. The actual rate was 31.01. That 1.3% dollar strength contributed mechanically to the margin beat.
High capacity utilization. Q4 2025 advanced node demand primarily NVIDIA Blackwell production, Apple A18/M4 chips, and AMD Instinct MI350 kept leading-edge fabs running at or near full capacity. Underutilization is the margin killer in foundry economics. Q4 2025 had none of it.
All three together produced a gross margin that would have been considered exceptional even two years ago.
Technology node breakdown: where revenue came from
| Node | Q4 2025 | Q3 2025 | Q4 2024 |
|---|---|---|---|
| 3nm (N3) | 28% | 23% | 26% |
| 5nm (N5) | 35% | 37% | 34% |
| 7nm (N7) | 14% | 14% | 14% |
| Advanced total | 77% | 74% | 74% |
| Mature nodes | 23% | 26% | 26% |
N3 jumped from 23% in Q3 to 28% in Q4 a five percentage point sequential move. That is not random. It reflects NVIDIA Blackwell production running at increased volume and Apple A18 production running at peak capacity for the holiday quarter iPhone cycle.
N3 is TSMC's highest-priced product. As it grows as a share of revenue, average revenue per wafer rises even without any increase in physical wafer volume. This is precisely why management expects N3 to cross the corporate gross margin average in FY2026 after being margin-dilutive since its 2023 launch, the scale effect is finally catching up.
N2 entered high-volume manufacturing at Hsinchu and Kaohsiung in Q4. Management described yields as "good" not adequate, not acceptable, good. From a company that uses language carefully on earnings calls, that word matters. N2 wafers are priced approximately 50% higher than N3 wafers. Its Q4 2025 revenue contribution was minimal; this was a ramp quarter. But the yield signal tells you the ramp should proceed without the stumbles that have troubled competitors at leading nodes.
Platform breakdown: HPC dominance and what it means
| Platform | Q4 2025 | Q3 2025 | FY2025 |
|---|---|---|---|
| HPC (AI and data center) | 55% | 57% | 58% |
| Smartphone | 32% | 30% | 29% |
| IoT | 5% | 5% | 5% |
| Automotive | 5% | 5% | 5% |
| DCE | 1% | 1% | ~3% |
HPC dropped from 57% in Q3 to 55% in Q4. That sequential dip is not weakness it reflects smartphone's seasonal peak as Apple A18 production ran at full capacity for the holiday quarter. Full-year 58% HPC share confirms AI infrastructure is the primary demand driver, not a one-quarter spike.
AI accelerator revenue specifically NVIDIA GPUs, AMD Instinct chips, and custom silicon for hyperscalers accounted for high-teens percent of total 2025 wafer revenue. That translates to approximately $20-22 billion in AI accelerator revenue in a single year, growing at a pace management projects at a mid-to-high 30s percent CAGR through 2029.
Advanced packaging deserves a separate note. CoWoS (Chip on Wafer on Substrate) and SoIC (System on Integrated Chips), used specifically for high-bandwidth memory stacking in AI accelerators, contributed approximately 8% of revenue in 2025 and is guided above 10% in 2026. NVIDIA's HBM-stacked GPUs depend on TSMC's CoWoS capacity. Advanced packaging revenue growth is directly tied to AI GPU production volume it is a real-time proxy for the AI infrastructure spending cycle.
DCE (Digital Consumer Electronics) dropped 22% sequentially in Q4 to 1% of revenue. At current mix levels, it is essentially irrelevant to the financial picture.
Q1 2026 guidance: what management is actually signaling
| Metric | Q1 2026 guidance | Q4 2025 actual |
|---|---|---|
| Revenue | $34.6-35.8B | $33.73B |
| Gross margin | 63.0-65.0% | 62.3% |
| Operating margin | 54.0-56.0% | 54.0% |
The gross margin guidance 63-65%, higher than Q4's record 62.3% is the unusual signal.
Foundries normally guide margins lower in ramp quarters because new capacity comes online and dilutes efficiency. TSMC is guiding higher despite N2 beginning to ramp and overseas fab costs increasing. The implication is direct: N3 scaling to margin-accretive territory is outpacing both the N2 ramp dilution and the overseas fab headwind simultaneously. Management has been forecasting this crossover for a year. Q1 2026 guidance is the first concrete confirmation it is happening on schedule.
At the midpoint of revenue guidance ($35.2 billion), Q1 2026 represents 38% year-over-year revenue growth. TSMC expects full-year 2026 revenue to grow approximately 30% in USD terms, approaching $160 billion annually.
One headwind worth noting: TSMC's effective tax rate is rising from 16% in 2025 to an expected 17-18% in 2026, partially from higher overseas income in jurisdictions with higher tax rates. A 1-2 percentage point tax increase creates a modest net income headwind that offsets some of the operating leverage story.
What C.C. Wei actually said on the earnings call
TSMC's chairman is not prone to loose language. The specific words matter.
On AI demand sustainability, C.C. Wei said customers had shown him "evidence of AI's positive impact on their business." He was not referring to projections or competitive pressure he was referring to demonstrated returns. After discussions with customers and their customers (hyperscalers and their enterprise AI buyers), he expressed confidence in demand sustainability without hedging.
On capacity planning, management described a "top-down and bottom-up approach." This is a specific reference to the fact that TSMC builds to contracted demand, not speculative forecasts. Capital reservations from named customers precede capital commitments.
On the foundry industry overall, TSMC expects Foundry 2.0 industry growth of 14% in 2026. TSMC itself expects approximately 30% revenue growth. The implication: TSMC plans to take meaningful share from the rest of the industry for the second consecutive year.
What this report means for NVIDIA and AMD investors
TSMC's earnings function as a leading indicator for its major customers.
When TSMC reports strong demand at N3 and N5, it confirms NVIDIA Blackwell and AMD Instinct production ran at planned volumes. When TSMC guides 38% year-over-year growth for Q1 2026, it confirms that AI infrastructure spending the engine behind NVIDIA's revenue has not slowed entering 2026.
A meaningful TSMC miss would have moved NVIDIA's stock before NVIDIA reported a single number. There was no miss. Q4 2025 beat guidance across every metric. The read-through is clean: NVIDIA production is on track, AMD data center chips are ramping, Apple is absorbing full N3 capacity for iPhone and Mac products.
For the full breakdown of how NVIDIA's revenue structure and TSMC's capacity decisions connect:
NVIDIA made $215.9B without owning a factory the business model behind the number
For how macro forces hyperscaler capex direction, interest rates, and Taiwan geopolitics run through the AI infrastructure chain and reach TSMC's revenue:
TSMC earns 74% of revenue from the US one tariff decision rewrites the investment case
The number that matters most in this report is not $33.73 billion revenue. It is the 3.0 percentage point operating margin beat versus guidance.
TSMC guided 49-51% operating margin. It printed 54%. Think about what that actually means: a company running $40+ billion in annual capex, expanding manufacturing across three continents simultaneously, beat its own operating margin guidance by 3 full points. That does not happen unless advanced node utilization ran materially better than what management modeled 90 days earlier.
The Q1 2026 gross margin guidance of 63-65% is the confirmation. Management is guiding above Q4's record, despite known N2 ramp costs and overseas fab dilution. N3 is crossing the corporate margin average faster than modeled. The node cycle dilutive launch, scale to neutral, then accretive is running ahead of schedule at N3. That matters because it means the same cycle is likely to run on time, or ahead, at N2.
Two specific signals to watch in 2026.
First: whether N2 gross margin commentary in Q3 or Q4 2026 shows the same trajectory N3 showed in 2024-2025. N2 entered high-volume manufacturing in Q4 2025 with management-described "good" yield. If positive gross margin commentary on N2 appears by Q2 2026 earlier than N3's equivalent milestone that confirms TSMC's process development is accelerating, not just maintaining pace.
Second: advanced packaging share of revenue. It was 8% in 2025 and is guided above 10% in 2026. If it exceeds 12%, it signals that CoWoS capacity constraints which have been a real bottleneck for NVIDIA's HBM-stacked GPU production are resolving faster than planned. That is a direct NVIDIA supply chain read-through, and it would affect NVIDIA's near-term revenue visibility.
Watch those two. Everything else in this report is already priced.
FAQs
What was TSMC's Q4 2025 revenue?
TSMC reported Q4 2025 revenue of $33.73 billion, up 25.5% year over year from $26.88 billion in Q4 2024. The result exceeded TSMC's guidance range of $32.2-33.4 billion.
Why did TSMC beat its gross margin guidance in Q4 2025?
TSMC guided Q4 2025 gross margin at 59.0-61.0% and printed 62.3% beating the top of guidance by 1.3 percentage points. Three factors converged: cost improvements at N3 as production scaled, favorable foreign exchange (actual rate of 31.01 USD/NTD vs guided 30.6), and high capacity utilization at leading-edge nodes driven by NVIDIA Blackwell and Apple A18 demand.
What is TSMC's Q1 2026 guidance?
TSMC guided Q1 2026 revenue at $34.6-35.8 billion, representing 38% year-over-year growth at the midpoint. Gross margin is guided at 63.0-65.0% and operating margin at 54.0-56.0%. The gross margin guidance is above Q4 2025's record level signaling that N3 mix improvement is outpacing N2 ramp dilution and overseas fab cost headwinds.
How much was TSMC's free cash flow in 2025?
TSMC generated NT$1 trillion in free cash flow in FY2025 the first time the company crossed that threshold up 15.2% from 2024. Cash and marketable securities at year end reached $98 billion.
What does TSMC's Q4 result mean for NVIDIA investors?
TSMC's strong N3 production numbers confirm NVIDIA Blackwell GPU production ran at or above planned volumes in Q4 2025. When TSMC beats production guidance at advanced nodes, it is a positive read-through for NVIDIA's supply chain. TSMC's 38% Q1 2026 revenue growth guidance further confirms that AI infrastructure demand has not slowed entering 2026.
What is the N2 gross margin outlook?
TSMC expects N3 to cross the corporate gross margin average in FY2026 becoming margin-accretive after being dilutive since its 2023 launch. N2, which entered high-volume manufacturing in Q4 2025 with "good" yield per management commentary, is expected to follow the same trajectory. The N3 precedent suggests N2 could reach margin neutrality by 2027, though TSMC has not guided a specific timeline.
What is TSMC's advanced packaging revenue?
Advanced packaging CoWoS and SoIC stacking technologies used primarily for AI GPU production contributed approximately 8% of TSMC's 2025 revenue. Management guided this above 10% in 2026. CoWoS capacity is a critical production bottleneck for NVIDIA's HBM-stacked GPU lineup, making advanced packaging revenue growth a direct proxy for AI infrastructure demand volume.
Why did TSMC's HPC revenue share drop in Q4 vs Q3?
HPC fell from 57% of revenue in Q3 to 55% in Q4 because smartphone revenue rises seasonally in Q4 as Apple runs full production for the holiday iPhone cycle. The full-year 58% HPC share is the correct number to reference for the demand mix picture the quarterly move reflects seasonality, not a change in AI infrastructure spending trends.