HF Best Ideas
AnalysesQuarterly Letters✦Warren AI
AnalysesQuarterly Letters✦Warren AI
Diamond Hill

Diamond Hill Long Short Fund

Dec 2024 → Mar 2026

Our archive holds 4 letters from this strategy, behind 4 investment theses and positions in 4 companies. Every quote below is copied verbatim from the letter it came from.

4 letters in 3 years — follow all of Diamond Hill for every strategy.

Its investment theses

  • SentinelOneDec 2025SentinelOne is a cybersecurity company with best-in-class endpoint technology poised to keep taking share as the market grows at high single digits.
  • Booz Allen HamiltonSep 2025Booz Allen Hamilton is a leading technology consulting firm for the US government, poised for growth amid increasing demand despite recent negative headlines affecting its shares.
  • Cooper CompaniesSep 2025Cooper Companies is a medical devices company with strong growth potential in contact lenses and women's health, supported by recent investments and favorable market trends.
  • Builders FirstSourceDec 2024Builders FirstSource is a high-quality US lumber and building materials distributor that we believe has temporarily faced macroeconomic challenges

Every letter

2026

  • March 2026

2025

  • December 2025
  • September 2025

2024

  • December 2024

Other Diamond Hill strategies

  • Diamond Hill Large Cap Fund5
  • Diamond Hill Mid Cap Fund5
  • Diamond Hill International Fund4
  • Diamond Hill Select Fund4
  • Diamond Hill Small Cap Fund4
  • Diamond Hill Small Mid Cap Fund3
  • Diamond Hill Core Bond Fund2
  • Diamond Hill Large Cap Concentrated Fund2
  • Diamons Hill Small Cap Fund1
  • Diamons Hill Small Mid Cap Fund1
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