Chinese optical chip stocks extend rout amid fears of potential US curbs

South China Morning Post - Oct 9, 2026

Renewed fears of potential US trade curbs on next-generation optical transceivers for data centres have sent shares of Chinese suppliers tumbling, deepening a sell-off across artificial intelligence supply chain stocks. Shares of Chinese optical chipmakers extended their losses for a second straight session on Friday despite reassurances from major suppliers, while China’s benchmark CSI 300 Index slid 1.3 per cent by the midday break to its lowest level since August last year. Upstream laser...

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