Costco Wholesale Corporation (COST) closed at $947.88 on October 9, 2026, a gain of 0.62% over the prior 24-hour period. The warehouse retail giant carried a market capitalization of $417.54 billion as of the close.
The single-day move extended a broader upward trend for the stock. Over the past seven days, COST added 3.59%, and over the trailing 30-day period the shares rose 4.15%, reflecting consistent buying interest across near- and medium-term timeframes.
The steady performance places Costco among the more resilient names in the consumer staples and retail space, with each of the tracked time horizons showing positive returns. The 30-day gain of 4.15% represents the largest magnitude move among the periods measured.
No material company-specific announcements were cited in conjunction with the day's price movement. The data reflects closing figures as reported on October 9, 2026.
