Diamond Hill Capital Management

Diamond Hill Capital Management

Period

Q1 2026

Portfolio Date

Mar 31, 2026

Stocks Held

187

Market Value

$16.0B

Portfolio Analysis

AIPreview
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I. Institutional Overview

Diamond Hill Capital Management represents a sophisticated archetype of the institutional value investor, managing a substantial portfolio with a total market value of approximately $15.99 billion as of the end of the first quarter of 2026. This scale places the firm in a critical bracket of the asset management industry—large enough to command significant...

The current snapshot reveals a portfolio comprising 187 individual holdings, a number that suggests a balanced approach to risk management. This is not a hyper-concentrated "bet-the-farm" hedge fund, nor is it a sprawling index-like collection of thousands of stocks. Instead, Diamond Hill appears to follow a "disciplined diversification" philosophy. By...

The institutional "psychological portrait" that emerges from this data is one of prudent transition and value-oriented opportunism. Diamond Hill has historically been associated with a fundamental, bottom-up investment style, often seeking companies with durable competitive advantages and attractive valuations. In the current period, we see a firm that is...

Based on the latest available 13F filing.

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Holdings Value Trend

Q2 2024

Q3 2024

Q4 2024

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Top 5 Holdings

1

$AIG

American International Group, Inc.

4.0%

% of Portfolio

2

$BRK.B

Berkshire Hathaway Inc.

3.8%

% of Portfolio

3

$ABT

Abbott Laboratories

3.5%

% of Portfolio

4

$AON

Aon plc

3.0%

% of Portfolio

5

$CL

Colgate-Palmolive Company

2.9%

% of Portfolio

Historical Positions

SymbolQ1 2026Q4 2025Q3 2025Q2 2025
AIG4.0%4.7%4.5%4.6%
BRK.B3.8%3.9%4.2%3.5%
ABT3.5%3.3%3.6%3.7%
AON3.0%2.9%2.6%2.6%
CL2.9%2.9%3.1%2.3%
FANG2.5%---
TXN2.5%2.9%2.9%3.4%
COP2.4%-2.3%2.2%
MSFT2.4%---
COF2.3%3.1%2.9%2.9%

Post-Filing Contributors

Price change since reported price, ranked by portfolio contribution

TXN+53.81%
SBAC+18.33%
AMZN+15.96%
NUE+54.29%
GOOGL+40.01%

Post-Filing Detractors

Price change since reported price, ranked by portfolio contribution

ZTS-30.84%
ABT-12.68%
WIX-51.07%
COP-12.61%
COO-5.58%

Sector Analysis

Energy6.9%
Others0.4%
Materials3.3%
Financials22.4%
Healthcare14.8%
Technology13.9%
Industrials16.0%
Real Estate5.3%

Trading Summary

1

$KMB

1.4%

2

$CARR

1.0%

3

$WAY

0.2%

4

$BRBR

0.2%

5

$IT

0.2%

6

$LAMR

0.1%

7

$RTO

0.1%

8

$AVTR

0.1%

9

$MGM

0.1%

10

$LYTS

0.0%

11

$KN

0.0%

12

$KOPN

0.0%

All Holdings

1

$AIG

4.0%

2

$BRK.B

3.8%

3

$ABT

3.5%

4

$AON

3.0%

5

$CL

2.9%

6

$FANG

2.5%

7

$TXN

2.5%

8

$COP

2.4%

9

$MSFT

2.4%

10

$COF

2.3%

11

$WM

2.3%

12

$ZTS

2.2%

13

$CRM

2.1%

14

$SBAC

2.1%

15

$DIS

1.9%

16

$EXR

1.7%

17

$EQH

1.7%

18

$ADBE

1.6%

19

$BAC

1.6%

20

$UNP

1.6%

21

$SYY

1.6%

22

$COO

1.5%

23

$RRX

1.5%

24

$KMB

1.4%

25

$AMZN

1.4%

26

$LH

1.3%

27

$LHX

1.2%

28

$V

1.2%

29

$EQT

1.1%

30

$GIS

1.1%

31

$TMO

1.1%

32

$WIX

1.1%

33

$MDT

1.1%

34

$PFE

1.1%

35

$MLM

1.1%

36

$ACN

1.1%

37

$MET

1.0%

38

$DE

1.0%

39

$CARR

1.0%

40

$FERG

1.0%

41

$SOLV

1.0%

42

$NUE

1.0%

43

$SBUX

0.9%

44

$BLDR

0.9%

45

$FDX

0.9%

46

$DOV

0.9%

47

$NVR

0.9%

48

$SSNC

0.8%

49

$KEY

0.8%

50

$GM

0.7%