Costco Wholesale Corporation (COST) closed at $902.37 on September 10, 2026, declining 0.85% in the latest 24-hour session. The move extended a broader pullback that has weighed on the stock in recent weeks.
Over the past seven days, COST has shed 2.81%, and the 30-day decline now stands at 5.28%. The consecutive losses across all three time frames point to sustained selling pressure on the warehouse retail giant.
Despite the slide, Costco retains a market capitalization of $406.11 billion, reflecting its continued standing as one of the largest retailers by market value. The stock's near-term performance will remain a focal point for market observers tracking the broader retail sector.
No single catalyst was identified in the available data to account for the multi-period decline. The figures reflect closing market activity as of September 10, 2026.
