Ciena tops fiscal Q3 earnings estimates and raises October-quarter sales outlook as shares fall

Ciena's fiscal Q3 results beat expectations on earnings and slightly on revenue, and management's October-quarter sales guidance topped consensus, signaling continued AI data-center-driven demand for networking gear. However, the stock still fell, implying elevated expectations and potential near-term de-risking by investors despite solid fundamentals. The release can influence sentiment across optical and data-center infrastructure suppliers.