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Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers

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

Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers

Published September 16, 2026 · Category: Finance

Overview

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

Source

Originally published at www.marketwatch.com.

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Disclaimer: This article is for informational purposes only and does not constitute investment advice. Data may be delayed up to 15 minutes. Past performance is not indicative of future results. Consult a licensed financial advisor before making investment decisions.