902.29 USD
↘ 2.48 (0.27%)AFTER HOURS (AS OF Fri 08:01 PM EDT)
COST Stock After Hours
Costco Wholesale Corp
COSTNASDAQ • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
COST last traded at $902.29 after hours, down $2.48 (0.27%) from its regular-session close of $904.77.
📅 COST is scheduled to report earnings on Sep 24, 2026 after the close (confirmed), with an estimated EPS of $6.56. COST earnings details →
COST After Hours Chart
COST After Hours News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, COST has had 1 qualifying gap-down event (5%+ at the open) and no qualifying gap-ups. Gap-downs averaged -6.2%, 100% have fully filled, median time to fill 11 trading days. Most recent: a -6.2% gap down on May 18, 2022, which filled in 11 trading days. Average 20-trading-day return after a COST gap down: -1.79%.
Gap Downs1 events
Fill Rate
100.0%
Avg Gap
6.2%
Avg 50% Fill
11d
Avg Fill
11d
Avg Gap Fill by Timeframes
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 0% | 0% | 100% | 100% |
| fills 50% | 0% | 0% | 100% | 100% |
| fills 75% | 0% | 0% | 100% | 100% |
| fills 100% | 0% | 0% | 100% | 100% |
Complete Gap History — 1 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2022-05-18 | $490.47 | -6.21% | Filled | 11d | 11d | 13% | 13% | 100% | 100% |
Frequently Asked Questions
What is COST's after-hours price?
Costco Wholesale (COST) is trading at $902.29 after hours, down $2.48 (0.27%) from its regular-session close of $904.77.
Why is COST moving after hours?
COST is down 0.27% in after-hours trading. Moves in this session almost always follow something released after the 4:00 PM ET close — an earnings report, guidance, a filing, or news — and trade on far thinner volume than the regular session, so the size of the move can overstate what the market will settle on at the next open.
When does COST after-hours trading start and end?
After-hours trading in COST on the NASDAQ runs from 4:00 PM to 8:00 PM ET on trading days, immediately after the regular session closes. Not every broker offers the full window, and liquidity thins sharply after about 6:30 PM ET.
Will COST's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and COST's gap history is the best guide to what happens next: 100% of gap-downs have filled over the past 5 years. Fill rates this high mean a large after-hours move is more often faded than extended.
When does COST report earnings?
COST is scheduled to report earnings on Sep 24, 2026 after the close (confirmed), with an estimated EPS of $6.56. Earnings are the most common cause of a large after-hours move, since most companies report after the close.