DIAMOND HILL INVESTMENT GROUP INC 8-K

What Happened
Diamond Hill Investment Group, Inc. (DHIL) filed an 8‑K on Feb 3, 2026 reporting assets managed by its subsidiary Diamond Hill Capital Management, Inc. totaled $28,738 million (about $28.7 billion). The filing provides a detailed breakdown of AUM by investment vehicle and by investment strategy.

Key Details

• Total AUM: $28,738 million (~$28.7B).
• By investment vehicle: Proprietary funds $18,246M; separately managed accounts $4,924M; collective investment trusts $1,759M; other pooled vehicles $3,809M.
• By strategy (selected): Large Cap $13,447M; Short Duration Securitized Bond $5,224M; Core Fixed Income $3,774M; Long‑Short $2,293M.
• Smaller allocations: Micro Cap $51M; Long Duration Treasury $26M; several other strategies range from tens to thousands of millions.

Why It Matters
AUM size and composition drive DHIL’s revenue potential because management fees and performance fees are tied to assets under management. The filing shows concentration in proprietary funds and a large exposure to Large Cap equities and securitized bond strategies, which informs investors about where the firm’s fee base and investment risk are concentrated. This 8‑K provides transparency on scale and product mix but does not report performance or changes versus prior periods.