983.88 USD
↘ 2.80 (0.28%)PRE MARKET (AS OF 07:55 AM EDT)
COST Stock Premarket
Costco Wholesale Corp
COSTNASDAQ • USD
Market: OPEN
Premarket trading runs 4:00 AM – 9:30 AM ET.
COST is trading at $983.88 in premarket, down $2.80 (0.28%) from its previous close of $986.68.
📅 COST is expected to report earnings around Sep 24, 2026 after the close (estimated), with an estimated EPS of $6.56. COST earnings details →
COST Premarket Chart
COST Premarket 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 premarket price?
Costco Wholesale (COST) is trading at $983.88 in premarket, down $2.80 (0.28%) from the previous close of $986.68.
Why is COST moving in premarket?
Costco Wholesale (COST) is down 0.28% from its previous close in premarket trading. Premarket moves are usually driven by company-specific news, earnings results, analyst rating or price-target changes, or broad market and sector sentiment. Check the latest COST premarket headlines and gap history below for the likely catalyst.
When does COST premarket trading start?
Premarket trading for COST on the NASDAQ runs from 4:00 AM to 9:30 AM Eastern Time, ahead of the regular session (9:30 AM – 4:00 PM ET). After-hours runs from 4:00 PM to 8:00 PM ET.
How often does COST fill its gaps?
Over the past 5 years, 100% of gap-downs have filled. Median time to fill is 11 trading days for gap-downs.
Does COST have any unfilled gaps?
No. COST has no unfilled gap events from the past 60 days; all recent gaps have been filled.
When does COST report earnings?
COST is expected to report earnings around Sep 24, 2026 after the close (estimated), with an estimated EPS of $6.56.