Alphabet (GOOG) Stock After Hours Today (Dec. 18, 2025): What Happened After the Bell—and What to Watch Before Friday’s Market Open
Alphabet Inc.’s Class C shares (NASDAQ: GOOG) finished Thursday, December 18, 2025, on a stronger note during regular trading—then eased slightly in after-hours action as investors weighed fresh regulatory headlines, AI-related developments, and a volatility-heavy calendar into Friday’s session. Below is what investors should know after the bell today and before the U.S. stock market opens tomorrow (Friday, Dec. 19, 2025). GOOG after-hours snapshot: where Alphabet’s Class C stock stands tonight Alphabet’s Class C (GOOG) shares closed up 1.91% at $303.75 in Thursday’s regular session, snapping a five-day losing streak. The move came alongside a broad risk-on day for U.S.