Taiwan Semiconductor Manufacturing Company (NYSE: TSM) reported a 77.4% increase in profits, a result that has reopened debate over whether the contract chipmaker's premium stock valuation is justified.

The figure was highlighted in a Yahoo Finance analysis of the foundry leader's latest earnings cycle. It ranks among the steepest year-over-year profit gains reported in the semiconductor sector over the past several quarters, and it lands as investors continue to weigh the sustainability of the industry's current upcycle.

What is driving the profit surge?

TSMC sits at the top of the global contract chipmaking stack, manufacturing processors for fabless designers that include the major names in smartphones, PCs, AI accelerators, and networking silicon. The 77.4% profit jump reflects the operating leverage the company extracts from advanced process nodes, where wafer pricing runs well above legacy production.

The mix shift toward leading-edge wafers directly lifts gross margin. As more of TSMC's revenue comes from higher-priced nodes, the profit growth rate accelerates even when total wafer shipments grow at single-digit rates.

Why the valuation question persists

Despite the earnings beat, TSMC trades at a multiple well above most peers and above its own five-year average. Bulls point to the company's dominant share of the merchant foundry market, the structural shortage of leading-edge capacity, and pricing power that flows from a concentrated customer roster. Bears counter that the 77.4% growth rate reflects a particularly favorable mix and is unlikely to repeat once capacity catches up with demand.

The next major test is the 2nm generation. TSMC has signaled volume production later in 2025, and the pricing step from 3nm to 2nm will determine whether the current margin trajectory extends. If the company can sustain a similar per-wafer uplift on N2 as it achieved on N3, the premium multiple has a defensible floor.

Capacity and concentration risks

TSMC's customer concentration and geographic concentration both carry weight in the valuation debate. The company derives a large share of revenue from a handful of customers, and the bulk of leading-edge production still runs from Taiwan. The first module of TSMC's Arizona facility is targeted for volume production this year, with advanced-node capacity following in subsequent phases, though U.S. wafer costs are widely expected to run above Taiwan equivalents.

Intel Foundry and Samsung's foundry unit continue to add capacity at the leading nodes, and any meaningful share gains would pressure the pricing power that underpins TSMC's margin lead.

What to watch next

The forward question is whether the 77.4% profit growth marks a peak or a baseline. The answer hinges on the pricing trajectory for the next node transitions, the pace of new capacity from competing foundries, and the demand cycle for AI accelerators and premium mobile processors. If leading-edge supply stays tight through 2026, the premium valuation case holds. If it loosens, the debate reopens.