Daily trading records
Costco Wholesale Stock Price on August 31, 2026
Direct answer
Costco Wholesale closed at $943.89 on August 31, 2026.
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Review Costco Wholesale's price trend and period performance.
The chart connects verified session closes from June 4, 2026 through August 31, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
-2.83%
From the August 24, 2026 close of $971.40 to $943.89 on August 31, 2026.
20-session performance
-1.07%
From the August 3, 2026 close of $954.08 to $943.89 on August 31, 2026.
60-session performance
-2.93%
From the June 4, 2026 close of $972.35 to $943.89 on August 31, 2026.
Verified data
- Open
- $945.19
- High
- $949.30
- Low
- $940.71
- Close
- $943.89
- Volume
- 2,393,041
- Prior-close change
- -$1.58 (-0.17%)
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Read the frequently asked questions.
What was Costco Wholesale's closing price on August 31, 2026?
Costco Wholesale closed at $943.89 on August 31, 2026.
What were Costco Wholesale's open, high and low on August 31, 2026?
The open was $945.19, the high was $949.30 and the low was $940.71.
How much did Costco Wholesale change from the prior close on August 31, 2026?
The change from the prior close was -$1.58 (-0.17%).
What was Costco Wholesale's volume on August 31, 2026?
Trading volume was 2,393,041 shares.
What is the source for Costco Wholesale's daily prices?
Daily aggregate prices are provided by Polygon.