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CarMax Inc.

/ KMXNYQ

What is KMX stock?

KMX is the U.S. stock ticker for CarMax Inc..

As of 2026-10-26: price $52.62; market cap $7.32B; latest earnings 2026-09-29; 12 recent 13F changes.

$52.62+2.08%

Yahoo Finance ↗·Updated 10/26/2026, 09:28 PM UTC

Current price
$52.62

Yahoo Finance

Market cap
$7.32B

Polygon.io

Latest earnings date
Sep 29, 2026

Nasdaq

Data status
Current

Source: Yahoo Finance ↗Polygon.io ↗Nasdaq earnings history ↗Updated: 10/26/2026, 09:28 PM UTC

Price change after earnings

After 1 day

-6.96%

$59.23 → $55.11

Sep 29, 2026 → Sep 30, 2026

After 7 days

-6.65%

$59.23 → $55.29

Sep 29, 2026 → Oct 06, 2026

Before-market or after-market timing is unavailable.

Reported date confirmed

Recent insider transactions

Updated: 07/07/2026, 06:26 PM UTC

13F institutional changes

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

Key people timeline

  1. Keith Barr

    I came to CarMax because I saw a strong foundation, an award-winning, people-first culture, and significant potential to unlock growth. Three months in, I am more convinced than ever that this is a business with everything it needs to thrive

    CarMax Inc. (KMX)

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, 09:28 PM UTC

Collection, calculation and correction policy
Yahoo Finance
10/26/2026, 09:28 PM UTC
Polygon.io
10/26/2026, 08:30 PM UTC
Nasdaq earnings history
09/29/2026, 12:00 AM UTC
SEC Form 4
07/07/2026, 06:26 PM UTC
SEC 13F
08/07/2026, 05:05 PM UTC
Statements / public records
07/28/2026, 09:13 AM UTC