Cisco Stock Today, November 20, 2025: AI Joint Venture, Quantum Alliance and Security Push Keep CSCO Near 20‑Year High
Cisco shares closed at $78.39 on Nov. 19, up 1.32%, and traded around $78.98 pre-market Thursday, just below their 52-week high of $79.50. The stock remains elevated after a strong earnings report and guidance hike, with Wall Street watching new AI and quantum computing partnerships and a major security update. Market cap stands above $300 billion, with a trailing P/E in the high 20s.