Ciena (CIEN) falls 5.17% premarket after Q3 earnings beat, raised guidance offset by valuation, supply chain concerns
ByAinvest Wire
Monday, Sep 14, 2026 4:27 am ET1min read
CIEN--
Ciena (CIEN) shares fell 5.17% in premarket trading after the company reported a Q3 FY2026 earnings beat and raised full-year revenue guidance. Despite the positive financial results, the stock declined due to concerns over high valuation metrics and persistent supply-chain constraints expected to impact operations through 2027-2028.
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