Ciena Climbs 5% as Post-Earnings Selloff Reverses; Arista Networks Rises 5%, Cisco Jumps 4%

Ciena, Arista Networks, and Cisco all saw significant stock increases of 4-5% on Friday, driven by a targeted sector rotation into networking equipment rather than individual company news. Ciena's surge reversed its post-earnings selloff, and its weekly gain of 10.7% positions it as a key indicator for the group's continued momentum. The coordinated rise suggests a broader demand for infrastructure, with future performance dependent on whether these gains hold and attract fresh buyers.