Coinbase (COIN) Stock After Hours Today (Dec. 17, 2025): COIN Slips at the Close as “System Update 2025” Takes Center Stage — What to Know Before the Dec. 18 Market Open
Coinbase Global, Inc. (NASDAQ: COIN) ended Wednesday’s session lower, with traders weighing a fragile crypto backdrop against a busy news cycle that includes a fresh bullish analyst initiation and heightened focus on Coinbase’s long-teased “System Update 2025” product showcase. COIN