Taiwan Semiconductor Manufacturing Company delivered another record-breaking quarter on Thursday, reporting second-quarter 2026 revenue of $40.2 billion, a 33.7% year-over-year increase that exceeded analyst forecasts by $900 million. Adjusted earnings per ADR came in at $4.31, surpassing the FactSet consensus estimate of $3.81 by roughly 13%, while net profit rose 77% to NT$706.6 billion — the company's ninth consecutive quarter of double-digit profit growth. Gross margin of 67.7% and operating margin of 60.3% both cleared the upper end of management's guidance range. Advanced technology nodes, including 3-nanometer and 5-nanometer processes, contributed 77% of total wafer revenue, reflecting the continued concentration of demand in leading-edge chips used for artificial intelligence applications.

Despite the headline beat, US-listed shares of TSMC fell 4.6% in premarket trading to roughly $400.19, as investors pivoted quickly from the revenue and margin figures to the implications of a sharply higher spending plan. TSMC raised its 2026 capital expenditure guidance to a range of $60 billion to $64 billion, up from a prior forecast of $52 billion to $56 billion — an increase of at least $4 billion at the midpoint and a revision that UBS described as a "surprise capex hike" given how rarely the company adjusts its spending outlook during the second quarter. Most of the incremental investment will go toward advanced logic nodes, CoWoS advanced packaging capacity, and global manufacturing expansion.

The company also raised its full-year revenue growth projection to slightly more than 40%, up from prior guidance of more than 30%, and announced an additional $100 billion investment in its Arizona operations, bringing total planned US manufacturing investment to $265 billion. The Arizona expansion will include additional 2-nanometer chip plants and advanced packaging facilities intended to serve multi-year demand commitments from Nvidia, Apple, AMD, and other major customers.

TSMC Chairman C.C. Wei told analysts on the post-earnings call that AI-related demand remains "extremely robust" and that the transition from generative AI to agentic AI is increasing computing requirements across hyperscale data centers, requiring both more AI accelerators and more data center CPUs. He said the company does not anticipate capacity bottlenecks as its production ramp continues, and that it is working closely with customers developing x86, Arm-based, and RISC-V processors to align production with long-term product roadmaps. Wei also said TSMC was "notifying" customers of wafer price increases in the 5% to 10% range across advanced nodes, citing near-full utilization and unprecedented demand.

The capex revision sent ripples across the global semiconductor supply chain. Shares of Arm Holdings fell roughly 4% in sympathy, the VanEck Semiconductor ETF slid 2.2%, and SK Hynix plunged 11% in Seoul, contributing to a 6.2% decline in South Korea's KOSPI. In Europe, ST Microelectronics shed 3% and ASML subsidiary ASMI dropped 2.92%. Analysts noted that while a higher capex figure is bullish for semiconductor equipment suppliers such as ASML and Lam Research over the medium term, the near-term read is that valuation multiples across the chip sector may already fully reflect the AI growth story, leaving little room for positive surprises to drive further gains.

Free cash flow declined in the quarter as a result of the accelerated investment, a dynamic bulls argue is temporary and bears point to as evidence that the margin structure supporting current valuations is more fragile than headline profitability suggests. TSMC's market capitalization stands near $2 trillion, making it one of the world's most valuable technology companies, and the stock is up roughly 40% year to date even after Thursday's premarket decline. Investors will watch the third-quarter revenue guidance of $44.6 billion to $45.8 billion — up sharply from $33.1 billion in the prior-year period — as the next concrete checkpoint for whether the AI demand trajectory justifies the spending commitment.