TechLumentum and Coherent were the day’s biggest S&P 500 gainers
MarketWatch cites an expert who says investors are looking further down the AI data-center supply chain for signs of demand amid concerns about a spending slowdown.
TLDR
MarketWatch shared a report on September 16, 2026, naming optical stocks Lumentum and Coherent as the day’s biggest S&P 500 gainers. An expert cited by the outlet says investors are looking further down the AI data-center supply chain for signs of demand amid concerns about a spending slowdown.
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Lumentum and Coherent were the day’s biggest S&P 500 gainers
MarketWatch cites an expert who says investors are looking further down the AI data-center supply chain for signs of demand amid concerns about a spending slowdown.
TLDR
MarketWatch shared a report on September 16, 2026, naming optical stocks Lumentum and Coherent as the day’s biggest S&P 500 gainers. An expert cited by the outlet says investors are looking further down the AI data-center supply chain for signs of demand amid concerns about a spending slowdown.