Costco Stock COST After Hours on Dec. 23, 2025: Latest News, Forecasts, and What to Watch Before the Market Opens Wednesday
Costco Wholesale Corporation stock finished Tuesday’s regular session modestly higher and was largely unchanged in after-hours trading—a calm tape for a retailer that’s become one of Wall Street’s most debated “quality at any price” names going into year-end. As of the latest after-hours update, Costco (NASDAQ: COST) last traded at about $854.79, up roughly 0.5% from Monday’s close, with no meaningful move after the closing bell. That quiet after-hours action matters because Wednesday, Dec. 24, 2025 (Christmas Eve) is a shortened U.S. trading session, and thinner liquidity can exaggerate price swings—especially for mega-cap favorites and widely held consumer-staples compounders like