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AI Boom Propels China Optical Maker to Top Weighting on CSI 300

Bloomberg Tech · Jun 4, 2026, 8:34 AM · Also reported by 2 other sources

A Chinese optical transceiver maker has overtaken a battery giant as the top-weighted firm in China’s equities benchmark, the latest sign of how a broadening AI rally is reshaping the world’s second-largest stock market.

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AI Boom Propels China Optical Maker to Top Weighting on CSI 300

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