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Why optical stocks Lumentum and Coherent were the day’s biggest gainers

Why optical stocks Lumentum and Coherent were the day’s biggest gainers
MarketWatch Wednesday 16 September 2026, 20:47 UTC By Britney Nguyen 1 min read
Key Points

Investors are looking further down the AI data-center supply chain for signs of demand amid concerns of a spending slowdown, one expert says.

Investors are looking further down the AI data-center supply chain for signs of demand amid concerns of a spending slowdown, one expert says.
Lumentum (ORG) AI (ORG)
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