Cisco stock ends week little changed as Cisco flags critical email-security fix, AI Summit next
New York, January 17, 2026, 12:04 EST — The market is now closed. Cisco Systems Inc shares slipped 0.08% to $75.19 on Friday, as the market geared up for a lengthy U.S. holiday weekend. Investors focused on a recent security update and several upcoming company events. The stock’s shift was small, yet the context remains heavy. Cisco provides networking and…