Diamond Hill

Diamond Hill Select Fund

Large-cap

Dec 2024 → Sep 2026

Our archive holds 6 letters from this strategy, behind 7 investment theses and positions in 26 companies. Every quote below is copied verbatim from the letter it came from.

6 letters in 3 years · follow all of Diamond Hill for every strategy.

What it bought and sold

  • New positionWaystar HoldingSep 2026
    We initiated a position in Waystar Holding, a leading health care technology company that helps providers manage billing, insurance claims and payments.
  • AddedCenteneSep 2026
    Managed care provider Centene was added to the portfolio as we believe margins have a credible path to recovery over the next several years as Medicare reimbursement rates catch up with underlying cost trends across its covered population.
  • New positionMartin MariettaSep 2026
    We initiated a position in building materials supplier Martin Marietta following weakness in construction sentiment across residential, nonresidential and infrastructure markets, as well as concerns surrounding a sizable acquisition that increased leverage.
  • New positionTransoceanSep 2026
    We initiated a position in Transocean, a leading offshore drilling contractor, as constrained industry supply and rising demand create a favorable backdrop for offshore drilling.
  • New positionEquifaxSep 2026
    We initiated a position in Equifax, a leading credit bureau and provider of data analytics, given the company’s proprietary, difficult-to-replicate data assets, particularly its employment and income database, The Work Number.
  • AddedMicrosoftSep 2026
    We initiated a position in software and technology provider Microsoft given the strength and customer value proposition of its existing products and services, along with its compelling opportunity to create value through investments in AI.
  • AddedAmazonSep 2026
    • Amazon, a leading e-commerce and cloud computing company, was added to the portfolio given accelerating revenue growth and strong margins in Amazon Web Services, alongside consistent growth and improving profitability in its commerce business.
  • AddedTransUnionSep 2026
    Credit reporting, risk analytics and identity solutions provider TransUnion was added to the portfolio when shares declined amid AI disruption concerns.
  • AddedHumanaSep 2026
    • Humana, one of the largest Medicare Advantage managed care companies, was added to the portfolio as we believe margins have a clear path to recovery following several years of higher- than-expected medical costs.
  • New positionMolina HealthcareJun 2026
    We initiated a position in managed care provider Molina Healthcare during the quarter.
  • ExitedWix.comJun 2026
    Given the fundamental headwinds the company is facing, we exited our position to deploy capital to more attractive opportunities.
  • ExitedStarbucksJun 2026
    Shares of regional bank KeyCorp and coffee chain Starbucks were sold to allocate funds to more attractive opportunities.
  • ExitedKeyCorpJun 2026
    Shares of regional bank KeyCorp and coffee chain Starbucks were sold to allocate funds to more attractive opportunities.

Also held

Its investment theses

Every letter