CarMax (KMX) Shares Rise After Starboard Value Reveals $350M Stake

Shares of CarMax, Inc. (KMX) jumped sharply in premarket trading on Wednesday after activist investor Starboard Value disclosed a $350 million stake in the used-car giant and nominated two directors to its board. The move signals growing pressure on CarMax management to accelerate its digital transformation, reduce costs, and adopt more dynamic pricing strategies.

The news comes after a brutal 12-month stretch for the stock, which had fallen roughly 43% before the announcement, and sent shares surging approximately 6.79% in premarket trading to $45.00 as of 8:34 AM EDT on March 11, 2026.

Activist Investor Calls for Cost Cuts and Digital Improvements

Starboard Value, one of Wall Street’s most active activist investors, has nominated two candidates to CarMax’s nine-member board: Starboard’s own founder and CEO Jeffrey Smith, and Bill Cobb, the chief executive of home warranties company Frontdoor. The nominations were first reported by Bloomberg and later confirmed by a source familiar with the matter to Reuters. Starboard delivered a letter directly to CarMax CEO Keith Barr outlining its vision for the company’s turnaround.

In the letter, Starboard argued that CarMax’s omnichannel model, combining online sales with roughly 250 physical dealership locations, has significant untapped potential. The activist fund called on management to deliver a better digital user experience, move faster on cost reductions, and implement more dynamic pricing to better respond to fluctuations in the used-car market. Starboard believes these changes would make the hybrid model both more profitable and more competitive against rivals like Carvana and AutoNation.

Central to Starboard’s thesis is a claim that CarMax has approximately $300 million in potential savings sitting within its administrative and operations budget. The fund has a track record in the automotive space, having previously invested in Cars.com and Ritchie Bros. Auctioneers, and views CarMax’s scale, over one million vehicles sold annually and more than $26 billion in annual revenue, as a strong foundation that is currently being underutilized.

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KMX Stock Brief: Premarket Surge and Market Performance

KMX shares closed at $42.14 on Tuesday, March 10, down 0.85% on the day, before rocketing to $45.00 in premarket trading on Wednesday morning, a gain of $2.86, or approximately 6.79%, as of 8:34 AM EDT. The stock had been under significant pressure over the past year, falling 43% compared to the S&P 500’s gain of roughly 21% over the same period, and is down nearly 68% over the past five years. The company’s market capitalization stands at approximately $6.2 billion intraday, a fraction of its scale relative to revenues.

Despite the stock’s struggles, CarMax beat earnings expectations in its most recent quarter, posting Q3 FY26 EPS of $0.43 against a consensus estimate of $0.31. Revenue came in at $5.79 billion, down 6.9% year-over-year but still ahead of analyst forecasts. Headwinds have included elevated interest rates dampening buyer demand, wholesale vehicle prices declining approximately 15% from their 2024 peaks, and rising inventory levels that have pressured margins across the used-car industry.

Analyst sentiment on KMX remains cautious despite the premarket pop. The average 12-month price target sits at $39.23, below the current trading price. Key metrics include a trailing P/E of 13.82, a price-to-book ratio near 1.0, and a debt-to-equity ratio of approximately 297%. The next earnings date is slated for April 14, 2026, which will be closely watched for signs that Starboard’s involvement is beginning to catalyze operational changes.

Disclaimer: The author does not hold or have a position in any securities discussed in the article. All stock prices were quoted at the time of writing.