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Main market opens in 11 minutes

09:18
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09:30
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23:59

Trading Hours (Monday - Friday):

Pre-market
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Main market
09:30 - 16:00
Post-market
16:00 - 20:00
All times are displayed in the America/New_York timezone (EDT, UTC-04:00).
1,076.46997 USD
27.52
2.62%
Last update May 18, 3:59 PM EDT
Pre-market
Day range
1,045
1,079.82996
Previous close
1,048.94995
Open
1,050
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Costco Wholesale Corporation
1,076.47
27.52
2.62%

Historical data

Prices

Date Open High Low Close % Change Volume
May 18, 2026 1.05K 1.08K 1.05K 1.08K 2.52% 2175849
May 15, 2026 1.05K 1.06K 1.04K 1.05K -0.04% 1967000
May 14, 2026 1.03K 1.04K 1.03K 1.04K 0.61% 1606600
May 13, 2026 1.02K 1.04K 1.02K 1.03K 1.49% 1654600
May 12, 2026 1.00K 1.03K 1.00K 1.02K 1.93% 2143200
May 11, 2026 1.01K 1.01K 985.15 999.47 -0.63% 2053500
May 08, 2026 1.01K 1.02K 1.01K 1.01K -0.29% 1805200
May 07, 2026 993.50 1.01K 990.66 1.01K 1.87% 2014000
May 06, 2026 1.01K 1.01K 992.42 995.75 -1.54% 2619100
May 05, 2026 1.01K 1.02K 1.01K 1.02K 0.58% 1456300
May 04, 2026 1.01K 1.02K 1.00K 1.01K 0.57% 1479400
May 01, 2026 1.02K 1.03K 1.01K 1.01K -0.36% 1509700
Apr 30, 2026 996.45 1.02K 996.32 1.01K 1.81% 2049300
Apr 29, 2026 988.37 998.97 985.12 998.67 1.04% 1516900
Apr 28, 2026 1.01K 1.01K 986 994 -1.63% 1776000
Apr 27, 2026 1.01K 1.01K 996.63 998.01 -1.05% 1620400
Apr 24, 2026 1.01K 1.01K 1.00K 1.01K -0.08% 1695200
Apr 23, 2026 1.01K 1.02K 1.01K 1.01K 0.67% 1570700
Apr 22, 2026 1.00K 1.01K 998.29 1.00K -0.13% 1215200
Apr 21, 2026 994.37 1.01K 986.70 1.01K 1.15% 1367100
Apr 20, 2026 1.00K 1.01K 994.14 997.84 -0.60% 1475400
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Pre-market

Exchange is currently open for pre-market.
Main market opens in 11 minutes

09:18
00:00
09:30
16:00
23:59

Trading Hours (Monday - Friday):

Pre-market
04:00 - 09:30
Main market
09:30 - 16:00
Post-market
16:00 - 20:00
All times are displayed in the America/New_York timezone (EDT, UTC-04:00).