The closing price for Costco Wholesale (COST) on December 31 was $859.92. It was down 0.3% for the day (down 0.4% from previous close). The latest price is $936.39.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 31 2025 21:00 | $859.92 | $859.92 | $859.92 | $859.92 | — |
December 31 2025 20:30 | $860.24 | $860.68 | $858.92 | $859.73 | 436,029 |
December 31 2025 19:30 | $862.09 | $862.33 | $860.11 | $860.31 | 97,212 |
December 31 2025 18:30 | $860.65 | $862.66 | $860.37 | $862.07 | 75,911 |
December 31 2025 17:30 | $860.31 | $861.01 | $860.10 | $860.67 | 71,247 |
December 31 2025 16:30 | $860.95 | $861.65 | $859.83 | $860.37 | 86,821 |
December 31 2025 15:30 | $861.58 | $861.59 | $859.70 | $860.99 | 90,473 |
December 31 2025 14:30 | $862.15 | $865.56 | $860.11 | $861.58 | 154,852 |
Daily pricing data for Costco Wholesale dates back to 11/27/1985, and may be incomplete.