Nebius Group (NBIS) Stock Drops After Hours on Dec. 15, 2025: Today’s News, Analyst Forecasts, and What to Watch Before Tuesday’s Open
Nebius Group N.V. (NASDAQ: NBIS) ended Monday, December 15, 2025, sharply lower and then slipped a bit more in after-hours trading—an important setup for investors heading into Tuesday’s open. NBIS closed at $81.14, down 7.47%, and was last shown around $80.15 in after-hours trading at 6:38 p.m. ET, down another 1.22% from the regular-session close. Benzinga The day’s action was volatile: NBIS traded roughly $80.06 to $88.24 during the session, with about 17 million shares changing hands. Benzinga+1 Below is what mattered most after the bell today and what to know before the stock market opens Tuesday, Dec. 16—including the