Yestino - The Signal · Why Ciena Lumentumhttps://yestino.com/entities/why-ciena-lumentum-c9cf2eEvery event involving Why Ciena LumentumenWhy Ciena, Lumentum and other optical stocks were among the market’s biggest losers on Mondayhttps://yestino.com/events/why-ciena-lumentum-and-other-optical-stocks-were-among-the-m-0b2bf4https://yestino.com/events/why-ciena-lumentum-and-other-optical-stocks-were-among-the-m-0b2bf4Mon, 12 Oct 2026 20:46:00 GMTThe sharp moves could partly be a reaction to recent cautious commentary on AI spending. Sources: MarketWatch