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COSTCO WHOLESALE CORP /NEW

/ COSTNMS

What is COST stock?

COST is the U.S. stock ticker for COSTCO WHOLESALE CORP /NEW.

As of 2026-10-26: price $1,002.85; market cap $444.39B; latest earnings 2026-09-24; 12 recent 13F changes.

$1,002.85-0.05%

Yahoo Finance ↗·Updated 10/26/2026, 03:27 PM UTC

Current price
$1,002.85

Yahoo Finance

Market cap
$444.39B

SEC EDGAR shares outstanding × Yahoo Finance price

Latest earnings date
Sep 24, 2026

Nasdaq

Data status
Current

Price change after earnings

After 1 day

+2.93%

$896.48 → $922.77

Sep 24, 2026 → Sep 25, 2026

After 7 days

+2.06%

$896.48 → $914.94

Sep 24, 2026 → Oct 01, 2026

After 30 days

+11.87%

$896.48 → $1,002.85

Sep 24, 2026 → Oct 26, 2026

Before-market or after-market timing is unavailable.

Reported date confirmed

Recent insider transactions

Updated: 10/15/2026, 09:35 AM UTC

13F institutional changes

Share counts are derived from reported value divided by the filing price and are rounded for display.

Key people timeline

Unavailable

Data sources and methodology

Prices use Yahoo Finance, earnings dates use Nasdaq, and company reference data prefers Polygon.io. When Polygon market cap is unavailable, the page derives it from the latest SEC shares outstanding multiplied by the Yahoo price. Insider and institutional records link to SEC EDGAR, and missing values are never invented.

Updated: 10/26/2026, 03:27 PM UTC

Collection, calculation and correction policy
Yahoo Finance
10/26/2026, 03:27 PM UTC
SEC EDGAR shares outstanding × Yahoo Finance price
10/07/2026, 12:00 AM UTC
Nasdaq earnings history
09/24/2026, 12:00 AM UTC
SEC Form 4
10/15/2026, 09:35 AM UTC
SEC 13F
08/07/2026, 05:05 PM UTC
Statements / public records
Unavailable