Costco Stock (COST) on December 5, 2025: Sales Strength, Slowing U.S. Momentum, Board Shake-Up and 2026–2030 Forecasts
Costco shares traded around $904 Friday afternoon, down 2.2% for 2025 after a 3% drop Thursday and lagging the S&P 500. November net sales rose 8.1% to $23.64 billion, but U.S. comparable sales growth slowed to 5.8% from 6.7% in October. Digital sales climbed about 16–17%. Investors remain wary of slowing U.S. momentum and Costco’s high valuation.