Costco Wholesale Corporation (COST) added 0.49% on Friday, October 2, 2026, closing at $914.99 as the warehouse retailer's shares continued a cautious recovery from a softer month.
Over the past seven days, COST gained 2.04%, reflecting renewed buying interest in the stock after a period of selling pressure. The 30-day picture remains in negative territory, however, with shares down 2.64% over that span.
Costco's market capitalization stood at $403.52 billion as of the close, keeping it among the largest retailers by market value. The stock's near-term trajectory has been mixed, with short-term momentum pointing upward while the broader monthly trend has yet to fully recover.
No single catalyst was cited in the available data for Friday's move, which was modest in scale. The day's action added to a week that produced a 2.04% gain for shareholders of the Issaquah-based membership retailer.



