Coherent Sinks 11%, Applied Optoelectronics Falls 10%, Lumentum Drops 9% as Traders Question AI Spending Spree

Stocks Yahoo Finance By Yahoo Finance 28 Jul 2026 16:15 1 min read
Coherent Sinks 11%, Applied Optoelectronics Falls 10%, Lumentum Drops 9% as Traders Question AI Spending Spree

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