Cisco (CSCO) Stock After Hours Today (Dec. 19, 2025): What Investors Need to Know Before the Next Market Open
Cisco Systems, Inc. (NASDAQ: CSCO) ended Friday’s session higher and held steady in after-hours trading, but the bigger story for investors heading into the next trading session is the rapidly developing cybersecurity headline risk around a critical, actively exploited vulnerability tied to Cisco’s Secure Email products. Below is a detailed, end-of-day breakdown of what moved Cisco stock today, what’s hitting the tape after the bell, and what to watch before U.S. markets reopen for the next session. Cisco stock price check: the after-hours snapshot Cisco shares closed at $78.42 on Friday, Dec. 19, up about 1.9% on the day. In