The selloff that doesn't match the fundamentals
South Korea's Kospi closed down nearly 11% on Tuesday — its eighth circuit breaker of 2026 and one of the worst single sessions of the year. The contagion crossed the Pacific fast. The American semiconductor index SOX fell as much as 6% Tuesday, its fourth consecutive losing session and the longest losing streak of the year. The Nasdaq-100 is now down 9.7% from its record high, just short of the formal correction threshold.
Yet the panic, by most supply-chain measures, is disconnected from reality. Third-quarter DRAM contract prices are settling 20% to 30% higher this month. Google and Meta have signed contracts locking in prices and volumes for five years. Analysts broadly do not expect meaningful new supply until 2028.
'Right now there's a lot of panic around the AI investment,' Gil Luria, a technology analyst at D.A. Davidson, told Fortune. 'And the panic appears to be indiscriminate.'
Three fears driving the move
Three catalysts are circulating on trading desks. First, Chinese memory maker CXMT made its Shanghai debut Monday, surging 466% after raising $8.6 billion. Second, the Information reported that a Chinese state-backed company has begun mass-producing immersion deep ultraviolet (DUV) lithography machines — technology ASML has held for roughly a decade. Third, fears that hyperscalers are overspending on AI infrastructure have hardened into the 'panic' Luria describes.
Analysts who track memory supply chains say the first two fears do not hold up. China has had access to DUV lithography for years, Matt Bryson of Wedbush told Fortune. Producing the machines domestically does not change what Chinese firms can actually manufacture. The binding constraint is EUV — extreme ultraviolet lithography, a more advanced technology that China still lacks and that only ASML produces. Export controls keep EUV machines out of China entirely.
The practical consequence: chipmakers can build advanced memory with DUV, but it requires more production passes, which raises costs. That cost gap is what separates Micron, Samsung, and SK Hynix from CXMT. Even if CXMT closed that gap, Bryson noted, it would likely face protectionism, intellectual-property questions, and potential infringement suits from Western memory makers. For now, its chips are flowing primarily into Chinese PCs and handsets.
Intel has said it cannot meet demand. Apple has raised prices on consumer devices because of the semiconductor squeeze. 'None of those things make sense in a world where spending is about to slow,' Bryson said.
The hyperscaler spending question is harder to dismiss
Alphabet last week reported the largest quarterly profit in corporate history, with cloud revenue up 82% — and its stock fell anyway. Investors fixated on capital expenditure: Alphabet raised its capex guidance to as much as $205 billion for 2026, up from $91 billion in 2025, and warned that 2027 would be higher still. Moody's expects the six largest hyperscalers to spend roughly $785 billion in 2026 and close to $1 trillion in 2027, and wrote last week that the ultimate return on all of that spending 'is unclear.'
Nvidia is now receiving similar treatment following reports of its own deal. Some analysts argue the market is misreading Nvidia's guarantee: Luria described it not as an obligation Nvidia expects to fund directly, but as a financial instrument designed to lower customers' cost of capital.
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The numbers come first, and right now the numbers say supply is tight and prices are rising — not the profile of a market about to crater. The indiscriminate selling looks less like informed repricing and more like sentiment contagion spreading from Seoul's notoriously volatile retail base into Western indices.
The harder question is the one Moody's raised about hyperscaler returns. Free-market discipline demands that capital justify itself eventually. If $785 billion in 2026 spending and nearly $1 trillion in 2027 do not translate into measurable productivity gains, the correction the Nasdaq is flirting with today will look mild by comparison. For now, the market has voted with fear. The supply chain is voting with price.
