China Tech Selloff Deepens as Optical Chip Pricing Pressure Emerges
TREE NEWS reports: Chinese equities opened higher on October 8 but reversed sharply through the morning session, with growth-heavy benchmarks bearing the brunt of the selling. The ChiNext Index, home to many Shenzhen-listed technology and healthcare names, swung from a gain of more than 1% to a loss exceeding 2%. The STAR 50 Index, tracking Shanghai’s hard-tech board, fell more than 3%. Hong Kong’s Hang Seng Tech Index dropped nearly 2%.
The trigger was concentrated in AI hardware. Optical module and optical chip makers collapsed after reports that pricing for 1.6T-compatible optical chips is coming under pressure, with further cuts expected. Yuanjie Semiconductor and Dongshan Precision both hit their 10% daily limits, while Changguang Huaxin and Shijia Photons fell more than 17% and 10% respectively. Tianfu Communication dropped nearly 9%.
Memory chips also weakened. Changxin Technology, a flagship storage name, fell almost 7% — its largest single-day decline since listing — as industry data showed DRAM spot trading was quiet with flat prices, feeding doubts about the durability of the memory upcycle. GigaDevice, Longsys and Biwin Storage all followed lower.
Capital Rotation, Not Broad Risk-Off
Critically, this was not a uniform risk-off session. Money rotated rather than exited. Banks, coal, oil and gas, and power utilities advanced, with Bank of China, ICBC and Bank of Hangzhou hitting record highs. Shipping stocks surged — COSCO Shipping Energy hit the daily limit — after Clarksons data showed Q3 VLCC average earnings of roughly $278,000 per day, with some routes exceeding $1.6 million per day in early October.
Commodity futures told the same story. Fuel oil jumped over 16%, low-sulfur fuel oil rose 9%, and methanol, paraxylene, pure benzene, LPG and styrene all hit limit-up. Brent crude’s holiday gains and Middle East shipping disruptions provided the catalyst. Precious metals bucked the trend, with palladium down 6.05%.
Bond futures slipped modestly across the curve, with the 30-year contract down 0.10%. Total morning turnover in Shanghai and Shenzhen reached 1.11 trillion yuan, roughly 200 billion yuan more than the prior session — evidence of active repositioning rather than capitulation.
Why This Matters for Investors
The selloff is a valuation and pricing-power story, not a demand collapse. AI infrastructure spending remains robust — high-end copper-clad laminate makers like Shengyi Technology and Shengyi Technology’s peers rallied on continued CCL price hikes and tight supply. The distinction matters: investors are punishing names where pricing power is eroding (optical chips, commodity DRAM) while rewarding those where supply remains constrained (high-speed PCB materials, shipping, energy).
- Watch optical chip pricing. If 1.6T chip price cuts materialize, margins across the CPO supply chain face compression even as volumes grow.
- Memory cycle doubts are building. Flat DRAM spot prices challenge the bull case for storage names that rallied hard on AI demand expectations.
- Dividend and cyclical assets are back in favor. Record highs in large banks and limit-up moves in energy and shipping suggest domestic capital is rotating toward cash-flow visibility amid tech volatility.
- Hong Kong tech remains the weak link. AI model developers Zhipu and MINIMAX fell 6% and 10%, and internet majors Alibaba, Baidu and Tencent all declined, showing sentiment toward China’s platform economy is still fragile.
The broader message: China’s equity market is bifurcating between an AI-hardware trade now facing its first real pricing test and a value/cyclical trade benefiting from geopolitics and commodity strength. Positioning for that divergence, rather than betting on a single index direction, is likely the dominant strategy into Q3 earnings.
