Ciena News - August 18, 2026
🔴 Ciena is trading 10.21% down today as fading U.S.-Iran peace prospects lifted oil prices
Ciena is trading at $399.75 (-10.21%) as fading U.S.-Iran peace prospects lifted oil prices and pushed bond yields toward multi-year highs, pressuring...
🔴 Ciena is trading 6.17% down today as higher yields pressure technology valuations
Ciena is trading at $417.71, down -6.17%, after broad risk-off selling pressured technology stocks on August 18, 2026. - No fresh company-specific...
🔴 Ciena is trading 4.11% down in pre-market amid broad risk-off trading
Ciena is trading 4.11% down at $426.89 in pre-market amid broad risk-off trading. - No fresh company-specific announcement was identified for August 18,...