The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →The main risks of investing in Taiwan Semiconductor Manufacturing Co. (TSMC) are geopolitical exposure around Taiwan, dependence on a relatively small group of customers, the semiconductor industry’s boom-and-bust cycles, the execution and cost of leading-edge technology, and disruptions to fabs, utilities, suppliers or information systems. TSMC has recently delivered exceptional growth, but strong historical results and management’s current outlook do not remove those risks or establish what the shares are worth.
The figures below come from TSMC’s 2025 annual disclosures and its January 15, 2026 earnings call. They describe exposures and management expectations, not probabilities of extreme events or a buy, sell or fair-value recommendation.
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1. Taiwan and geopolitical risk
TSMC identifies political stability in its local region and geopolitical tensions as factors that could make actual results differ materially from expectations. The company also describes economic fragmentation as a source of supply-chain disruption through trade disputes, export controls, tariffs or conflict.
For an investor, the risk is broader than a single political event. Restrictions could limit where TSMC can sell chips, which equipment or software it can obtain, or which customers it can serve. Tariffs and duplicated supply chains could raise costs. New technology rules could force changes to product road maps, manufacturing locations or customer allocations. A conflict or severe deterioration in regional stability could interrupt production, logistics, employee access and insurance, while financial markets could reprice Taiwanese assets rapidly.
These are contingent scenarios. TSMC’s disclosures do not establish that a conflict will occur, when one might occur or what its probability would be. The appropriate conclusion is that the company’s geographic concentration creates an exposure that a globally diversified manufacturer would not have to the same degree.
What to monitor
- New export-control, tariff or investment-screening rules affecting advanced semiconductors, manufacturing equipment or technology transfers.
- Changes in customer permissions to ship products across borders.
- Announcements about additional overseas capacity and the cost of operating it.
- Insurance, logistics and supplier arrangements for a prolonged regional disruption.
2. Customer concentration can magnify one customer’s decision
TSMC serves hundreds of customers, but revenue is concentrated among its largest accounts. The company’s 2025 annual report gives this progression:
| Customer group | 2023 | 2024 | 2025 | Why it matters |
|---|---|---|---|---|
| Ten largest customers as a share of net revenue | Approximately 70% | Approximately 76% | Approximately 78% | A small group of buyers drives most revenue. |
| Largest customer as a share of net revenue | 25% | 22% | 19% | The largest account declined as a percentage, but remains material. |
The two measures should be read together. The largest customer’s share fell from 25% to 19%, which suggests less dependence on one account alone. At the same time, the ten-largest-customer share rose from about 70% to 78%, indicating that revenue became more concentrated in the leading group overall.
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A major customer can reduce orders because its own products enter a downcycle, switch some production to another supplier, redesign a chip, consolidate suppliers or face export restrictions. Even if total industry demand is healthy, a change by one large account can affect TSMC’s utilization, product mix and negotiating position. Concentration also makes customer forecasts and inventory corrections especially important inputs for investors.
3. Semiconductor cycles, utilization and pricing
Demand for chips moves in cycles. TSMC names high-performance computing, smartphones, the Internet of Things, automotive and digital consumer electronics among the end markets that could weaken. A downturn in one market may be offset by growth in another, but a synchronized slowdown would be more difficult to absorb.
Fabs require very large upfront investments, and much of their manufacturing cost does not fall in proportion to wafer shipments. If orders decline, fixed depreciation, facilities costs, engineering expenses and other overhead are spread across fewer wafers. Lower utilization can therefore compress gross margin quickly. Customers may also seek price reductions during a downturn, while industry overcapacity can leave foundries competing for the same volume.
Competition creates a second pressure. Rival foundries and integrated chip companies can offer alternative processes, capacity or pricing. TSMC must keep its process technology, yields, delivery performance and ecosystem attractive enough for customers to commit future designs. A period of excess capacity or slower demand can make that commitment harder to secure.
Why current AI strength does not eliminate cyclicality
TSMC’s 2025 disclosures describe robust demand related to artificial intelligence and report record results. AI infrastructure can support several years of investment, but the timing and size of future orders still depend on customers’ capital budgets, product launches, inventory levels and returns on their own AI spending. A pause, digestion period or change in system architecture could reduce growth rates even without a collapse in long-term demand.
4. Leading-edge technology and execution risk
TSMC identifies uncertainty in advanced technology development, product quality, yield and the ability to maintain technology leadership as material risks. A process node must work not only in a laboratory demonstration but also at commercial volume, with predictable defect rates, competitive power and performance characteristics, and acceptable economics for customers.
The company said 2-nanometer technology entered high-volume manufacturing in the fourth quarter of 2025. That milestone can strengthen TSMC’s competitive position, but a ramp is an execution challenge. Early production may have lower yields, require more engineering work and generate higher unit costs. Delays or quality problems could push customer products to a later schedule or another manufacturing option.
TSMC’s chairman and chief executive C.C. Wei wrote in the 2025 annual report: “As a Foundry, our biggest responsibility is to support our customers with the most advanced technologies and necessary capacity to unleash their innovations.” That is the company’s strategy statement; it is not independent confirmation that every technology or capacity investment will earn an adequate return.
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5. Capital spending and overseas expansion can dilute margins
TSMC’s technology lead requires sustained spending on cleanrooms, tools, research and development, utilities and skilled personnel. Management said on January 15, 2026 that the expected 2026 capital budget was US$52 billion to US$56 billion. Large investments can create future capacity and resilience, but they also increase depreciation, financing needs and the amount of production required to achieve attractive returns.
Management expected the initial N2 ramp-up to dilute full-year 2026 gross margin by 2% to 3%. It also expected overseas-fab ramp-up to dilute gross margin by 2% to 3% in early stages, widening to 3% to 4% in later stages. These are management expectations, not reported outcomes or guarantees. The eventual effect depends on yields, local labor and construction costs, exchange rates, customer demand and how quickly each site reaches efficient utilization.
Overseas plants can reduce geographic concentration and help customers meet local-content requirements, yet manufacturing outside Taiwan may cost more and initially lack the same supplier density, labor pool and operating experience. Investors must weigh the resilience benefit against the possibility of structurally lower margins or slower payback.
6. Fab, supply-chain, cyber and utility disruptions
Semiconductor manufacturing is sensitive to interruptions that may be brief for many industries but costly for a high-utilization fab. TSMC lists earthquakes, typhoons, droughts, utility interruptions, equipment or facility failures, cyberattacks, supply-chain disruption, labor issues and shortages or rising costs of power and other utilities.
- Natural disasters: An earthquake or typhoon can damage buildings, tools, roads or suppliers. A drought can constrain the ultra-pure water required for processing.
- Power and other utilities: Voltage instability, outages or higher electricity prices can halt production or raise wafer costs.
- Equipment and materials: Delays in specialized tools, chemicals, gases or replacement parts can extend downtime because few suppliers can substitute immediately.
- Cybersecurity: TSMC warns that a serious attack could disrupt production or compromise sensitive information. A breach could affect both operations and customer trust.
- Labor and logistics: Skills shortages, labor disputes, transport interruptions or restricted site access can slow installation and output.
The practical investment issue is interdependence: a fab may be ready, but output still depends on stable utilities, equipment maintenance, suppliers, secure networks and trained staff.
7. Currency, interest-rate, inflation and financing exposure
TSMC’s risk-management disclosures include foreign-exchange movements, interest rates, inflation, taxation, external financing and high-risk investments. Revenue, costs, assets and liabilities are spread across currencies and jurisdictions, so exchange-rate changes can alter reported New Taiwan dollar results even when underlying demand is unchanged.
Higher rates can raise the cost of financing a multibillion-dollar expansion and reduce the present value investors place on future cash flows. Inflation can increase construction, labor, energy and component expenses. Tax rules or incentives can change the economics of a particular site. TSMC management also said it does not control foreign-exchange rates and acknowledged possible tariff effects and rising component prices. The disclosures do not provide a reliable forecast for future currency movements.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.8. Record 2025 results and the risk of high expectations
TSMC reported consolidated 2025 revenue of NT$3,809.05 billion, up 31.6% from 2024. Net income was NT$1,717.88 billion and diluted earnings per share were NT$66.26. Those are reported 2025 results in New Taiwan dollars.
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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteOn January 15, 2026, management forecast close to 30% revenue growth for 2026 in U.S.-dollar terms. That is a forecast from the earnings call, not a realized result, and it may change as orders, currencies, regulations and capacity plans change.
Strong results can create a different kind of risk: expectations may rise faster than the business can deliver. If revenue grows but margins fall during technology or overseas-fab ramps, investors may still react negatively. Conversely, a good quarter does not settle questions about long-term demand, geopolitical exposure or the price already reflected in the shares. No current share price, valuation multiple or independent fair-value estimate is established here, so performance alone cannot answer whether the stock is attractively priced.
9. A practical way to assess TSMC risk
Investors can turn the broad risk list into a repeatable review rather than relying on a single headline.
- Track concentration: Compare the ten-largest-customer and largest-customer percentages in each annual report. Watch for a sudden increase or a major customer’s product transition.
- Separate demand from utilization: Review wafer shipments, capacity additions and utilization commentary. Revenue growth with falling utilization can signal future margin pressure.
- Check process execution: Follow high-volume-manufacturing milestones, yield commentary, customer adoption and quality disclosures for each leading node.
- Compare spending with returns: Set the capital budget beside depreciation, free cash flow, utilization and management’s timeline for new fabs to mature.
- Stress geopolitical assumptions: Consider how export controls, tariffs or a logistics interruption would affect customers, equipment access and production locations. Do not assign an invented probability to conflict.
- Review resilience: Look for updates on backup power, water, disaster recovery, cybersecurity, supplier diversity and insurance.
- Normalize financial figures: Check currency effects, inflation, tax changes and interest costs before concluding that an earnings move reflects operating performance.
10. Comparing TSMC with another chip manufacturer
A useful comparison requires more than looking at the latest growth rate. Use the same questions for each company:
| Comparison axis | Questions to ask |
|---|---|
| Geography and geopolitics | Where are fabs, suppliers and customers located, and how exposed are they to trade or political restrictions? |
| Customer concentration | What percentage of revenue comes from the largest customer and the largest group? |
| End markets and AI mix | How much demand comes from computing, smartphones, automotive, IoT and other cycles? |
| Technology and yield | What process generations are in volume production, and how dependable are yields and quality? |
| Capital intensity | How large are expansion commitments, overseas costs, depreciation and utilization requirements? |
| Operational resilience | How robust are utilities, suppliers, cybersecurity, disaster recovery and labor availability? |
| Valuation and financial resilience | What price, balance-sheet capacity and cash-flow assumptions are already reflected in the shares? |
The first six rows are operating-risk comparisons. The final row requires current market data and comparable-company analysis; a risk discussion alone cannot supply it.
Bottom line
TSMC combines an important competitive position with a concentrated set of exposures. Taiwan-related geopolitics can affect market access and continuity; a handful of customers drive most revenue; semiconductor cycles can turn high fixed costs into margin pressure; and leading-edge nodes and overseas fabs demand flawless execution and heavy spending. Natural disasters, cyber incidents, utilities, suppliers, currencies and regulation add further ways for results to diverge from expectations.
Its record 2025 performance and positive January 2026 outlook show what the business has recently achieved, not what it must achieve next. A sound decision therefore depends on how much of these risks an investor can tolerate, the assumptions embedded in the current share price and the evidence in future disclosures—not on growth figures alone.
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