Investors.com will undergo scheduled maintenance from 10:00 PM ET to 2:00 AM ET and some features may be unavailable. We apologize for any inconvenience.
Ciena (CIEN) stock fell on Thursday after the optical gear maker's fiscal third-quarter earnings topped estimates while revenue edged by views amid big share gains in 2026. While the company's October-quarter revenue guidance came in slightly above views, management's outlook for adjusted gross margins pressured Ciena stock. For the quarter ending July 31, Ciena earnings boomed 215% to $2.11…
