Arista Networks' stock price surged 5.05% during intraday trading on Thursday, extending a recent positive trajectory for the networking equipment provider.

The sharp rise was fueled by a powerful sector-wide rally, primarily ignited by peer Cisco Systems' stellar earnings report. Cisco's significant surge created a pronounced positive linkage effect across the communication equipment sector, lifting shares of related companies including Arista Networks.

Investors also continued to digest Arista's own robust first-quarter financial results, where the company reported revenue growth of 35.1% year-over-year and adjusted earnings per share that exceeded market expectations. Furthermore, the company raised its full-year revenue guidance and significantly increased its target for AI-related business revenue, signaling strong confidence in future demand, particularly within artificial intelligence infrastructure.