13F Insight
DOSSIER · 13F-HR · Q1 2026

DIAMOND HILL CAPITAL MANAGEMENT INC

$16.0B in tracked AUM across 187 positions as of Q1 2026.

DH
CIK 0001217541 · last filed Mar 31, 2026
Total AUM
$16.0B
as of Q1 2026
Holdings
187
—
positions
Whale Score
66
66
tracked
Activity
—
no data
changes this Q
AI Analysis · Q1 2026

DIAMOND HILL CAPITAL MANAGEMENT INC filed Q1 2026 13F-HR with $16.0B in disclosed U.S. equity holdings The portfolio is led by Financial Services exposure, with top positions including AIG (4.0%), BRK/B (3.8%), ABT (3.5%). Quarter-over-quarter activity shows 5 new entries and 5 exits, with a net reductive posture across 55 changed positions. Notable reduction: AIG (20.7% reduction) (American International Group,).

DIAMOND HILL CAPITAL MANAGEMENT INC reports $16.0B in U.S. equity holdings for Q1 2026, anchored by a Financial Services-centric allocation. The top five positions by value span AIG + BRK/B + ABT + G0403H108 + CL, collectively representing a meaningful concentration within the disclosed book.

Core Holdings

  • AIG (American International Group,) — $0.6B (4.0%)
  • BRK/B (Berkshire Hathaway, Inc. (Cl B) — $0.6B (3.8%)
  • ABT (Abbott Laboratories) — $0.6B (3.5%)
  • G0403H108 (Aon PLC (Cl A)) — $0.5B (3.0%)
  • CL (Colgate-Palmolive Co.) — $0.5B (2.9%)

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
AIG
American International Group,
$645M8.6M4.0%02
BRK/B
Berkshire Hathaway, Inc. (Cl B
$610M1.3M3.8%03
ABT
Abbott Laboratories
$552M5.4M3.5%04
G0403H108
Aon PLC (Cl A)
$480M1.5M3.0%05
CL
Colgate-Palmolive Co.
$461M5.4M2.9%06
FANG
Diamondback Energy, Inc.
$397M2.0M2.5%07
TXN
Texas Instruments, Inc.
$397M2.0M2.5%08
COP
ConocoPhillips
$385M2.9M2.4%09
MSFT
Microsoft Corp.
$379M1.0M2.4%10
COF
Capital One Financial Corp.
$368M2.0M2.3%

Filing history

2026Q1Mar 31
$16.0B▼ 18.1%
187 positionsView →2025Q4Dec 31
$19.5B▼ 7.3%
190 positionsView →2025Q3Sep 30
$21.1B▼ 3.2%
186 positionsView →2025Q2Jun 30
$21.8B▼ 0.3%
180 positionsLocked2025Q1Mar 31
$21.8B▼ 3.7%
174 positionsLocked2024Q4Dec 31
$22.6B▼ 8.4%
177 positionsLocked2024Q3Sep 30
$24.7B▲ 5.7%
176 positionsLocked2024Q2Jun 30
$23.4B▼ 4.6%
171 positionsLocked2024Q1Mar 31
$24.5B▲ 7.7%
163 positionsLocked2023Q4Dec 31
$22.8B▲ 10.1%
164 positionsLocked2023Q3Sep 30
$20.7B▼ 7.0%
166 positionsLocked2023Q2Jun 30
$22.2B▲ 4.1%
165 positionsLocked
Showing 12 of 85