Cisco (CSCO) Stock After Hours on December 10, 2025: Record High, AI Momentum and What to Watch Before the December 11 Open
Cisco Systems, Inc. (NASDAQ: CSCO) just did something it hasn’t managed since the days of dial‑up modems and frosted tips. On December 10, 2025, Cisco closed at a new all‑time high of $80.25, up 0.93% on the day, finally surpassing its dot‑com bubble peak from March 2000. Bloomberg+3Morningstar+3Barron’s+3 In after-hours trading, the stock edged even higher, changing hands in the high‑$80s around $80.7, roughly another 0.5–0.6% above the close. Public+1 Year to date, Cisco is now up roughly 36% in 2025, on track for its best year since 2009, and has re‑entered the market’s AI‑infrastructure spotlight in a big way.