VanEck Semiconductor ETF Sinks Into Bear Market as China's Kimi K3 Reshapes the AI Calculus

VanEck Semiconductor ETF drops 17%, SOX enters bear market after China's Moonshot AI unveils Kimi K3 model, triggering massive hedge fund liquidation.

Just over a week after the VanEck Semiconductor UCITS ETF touched its 52-week peak at €111.18, the fund has tumbled 17.12% from that high, closing Friday at €92.15 — a 1.01% daily loss that capped a brutal five-session stretch. On a seven-day basis the ETF shed 8.83%, dragging its 30-day decline to nearly 10% and pushing the underlying Philadelphia Semiconductor Index into official bear-market territory. The SOX now sits 20% below its June record, representing the chip sector’s worst week since the tariff shock of April 2025.

The trigger came from Shanghai. On July 17, the Chinese startup Moonshot AI unveiled Kimi K3 at the World Artificial Intelligence Conference — an open-source language model boasting 2.8 trillion parameters and a context window of one million tokens. Early benchmarks from Arena.ai ranked it first globally for coding, while Artificial Analysis placed it third overall. Crucially, Kimi K3 delivers performance close to models from Anthropic and OpenAI at a fraction of the cost, and its model weights are scheduled for public release on July 27. Investors immediately drew parallels to the “DeepSeek moment” in early 2025, questioning whether the hundreds of billions poured into US AI infrastructure can withstand a wave of cheaper Chinese alternatives.

The sell-off was amplified by forced position unwinding. Goldman Sachs described it as one of the largest momentum-driven liquidations on record, driven largely by hedge funds that had been long semiconductors and short cloud stocks. In Hong Kong, shares of Zhipu (Z.ai) plunged as much as 28%, while MiniMax lost roughly 16%. Across the Atlantic, the damage was broad. Micron, Arm and Intel are now more than 30% below their respective highs. Taiwan Semiconductor Manufacturing posted a 36% year-over-year revenue surge in the second quarter to NT$1.27 trillion with a gross margin of 67.7%, yet the stock still fell for seven consecutive trading days, losing 8.8% cumulatively. Kioxia suffered a one-day rout of more than 16%, halving its value from the June peak, while SK Hynix’s American Depositary Receipts logged double-digit declines and SanDisk and Seagate also retreated sharply.

Not every signal pointed lower. The New York Times reported that Anthropic and Meta are negotiating a two-year data-center lease agreement worth $10 billion. Meta has earmarked up to $145 billion in capital expenditure for 2026, and Anthropic already pays $1.25 billion a month to SpaceX for the Colossus supercomputer. These deals suggest that underlying demand for computing capacity remains intact, even if the price of inference models is falling. The week’s turmoil also drew strength from geopolitics: WTI crude rose 3.7% to $81.88 a barrel on Middle East tensions, fueling a broader rotation out of high-multiple tech names into cyclical stocks.

The sheer velocity of the downturn was stunning. Since June 22, global semiconductor stocks have lost roughly $3.3 trillion in market capitalization, according to one estimate. The S&P 500 fell 1.6% for the week, the Nasdaq Composite dropped 2.9% to 25,520.24, and the Dow Jones Industrial Average lost 406.55 points to 52,146.42. Against that backdrop, the VanEck ETF’s 50-day moving average now sits at €97.27, well above the closing price, while the 200-day MA remains at €68.06. The 14-day relative strength index reads 41.9 — not yet oversold — and the annualized 30-day volatility has surged to nearly 60%, underscoring the sector’s extreme nervousness.

Yet the long-term numbers still tell a staggering story. The ETF is up 72.99% year-to-date and 119.09% over the past twelve months. The rally that carried the fund from its March low to the June peak lifted the SOX by 105% in just three months. The current correction, analysts argue, reflects not a broken thesis but overheated expectations meeting a new competitive reality. The next major test comes on July 22 when Alphabet reports earnings, followed by Microsoft, Amazon and Meta. Their capital-spending guidance — particularly on AI infrastructure — will determine whether the sell-off deepens or transforms into a buying opportunity. For the VanEck Semiconductor ETF, the story in the weeks ahead will be written less by chip designers and more by their biggest customers.