Diamond Hill (NASDAQ: DHIL) posts $31,020M AUM total as of August 31, 2025

Rhea-AI Filing Summary

Diamond Hill Investment Group reported that its wholly owned subsidiary, Diamond Hill Capital Management, had $31,020 million in assets under management as of August 31, 2025.

The assets are spread across Diamond Hill Funds at $19,746 million, separately managed accounts at $5,675 million, collective investment trusts at $1,525 million, and other pooled vehicles at $4,074 million. By strategy, the largest allocation is to Large Cap at $16,702 million, with meaningful amounts in Short Duration Securitized Bond at $4,673 million and Core Fixed Income at $3,446 million, alongside smaller allocations to various equity and securitized credit strategies.

8-K Event Classification

Item 8.01 — Other Events

1 item

Item 8.01 Other Events Other

Voluntary disclosure of events the company deems important to shareholders but not covered by other items.

Understanding 8-K Material Events →

0000909108false00009091082025-09-032025-09-03

United States

Securities and Exchange Commission

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): 9/3/2025

DIAMOND HILL INVESTMENT GROUP, INC.

(Exact Name of Registrant as Specified in its Charter)

Ohio		000-24498		65-0190407
(State or other jurisdiction of incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)

325 John H. McConnell Blvd, Suite 200, Columbus, Ohio 43215

(Address of principal executive offices) (Zip Code)

Registrant's Telephone Number, Including Area Code: (614) 255-3333

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, no par value		DHIL		The NASDAQ Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01 Other Events

The following is a summary of assets under management as of August 31, 2025 of Diamond Hill Capital Management, Inc., a wholly owned subsidiary of Diamond Hill Investment Group, Inc. (in millions):

By Investment Vehicle
Diamond Hill Funds	$	19,746
Separately managed accounts		5,675
Collective investment trusts		1,525
Other pooled vehicles		4,074
Total	$	31,020
By Investment Strategy
Small Cap	$	250
Small-Mid Cap		1,492
Mid Cap		1,033
Large Cap		16,702
Large Cap Concentrated		170
Select		806
Long-Short		2,078
International		156
Micro Cap		42
Short Duration Securitized Bond		4,673
Securitized Credit		116
Securitized Total Return		31
Core Fixed Income		3,446
Long Duration Treasury		25
Total	$	31,020

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		DIAMOND HILL INVESTMENT GROUP, INC.
Date:	9/3/2025	By:		/s/ Thomas E. Line
				Thomas E. Line, Chief Financial Officer and Treasurer

FAQ

What level of assets under management did Diamond Hill (DHIL) report as of August 31, 2025?

Diamond Hill Capital Management, a subsidiary of Diamond Hill Investment Group, reported $31,020 million in assets under management as of August 31, 2025.

How are Diamond Hill (DHIL) assets under management allocated by investment vehicle?

As of August 31, 2025, assets under management were allocated to Diamond Hill Funds at $19,746 million, separately managed accounts at $5,675 million, collective investment trusts at $1,525 million, and other pooled vehicles at $4,074 million.

Which investment strategy is largest in Diamond Hill (DHIL) assets under management?

The largest strategy is Large Cap with $16,702 million in assets under management as of August 31, 2025.

How much does Diamond Hill (DHIL) manage in fixed income-related strategies?

As of August 31, 2025, Diamond Hill reported $4,673 million in Short Duration Securitized Bond, $3,446 million in Core Fixed Income, $116 million in Securitized Credit, $31 million in Securitized Total Return, and $25 million in Long Duration Treasury.

What smaller equity strategies does Diamond Hill (DHIL) report within its AUM?

Within total assets under management of $31,020 million, Diamond Hill lists smaller equity strategies such as Small Cap at $250 million, Small-Mid Cap at $1,492 million, Mid Cap at $1,033 million, Large Cap Concentrated at $170 million, Select at $806 million, Long-Short at $2,078 million, International at $156 million, and Micro Cap at $42 million.

Which subsidiary of Diamond Hill (DHIL) manages the reported assets?

The reported $31,020 million in assets under management are managed by Diamond Hill Capital Management, Inc., a wholly owned subsidiary of Diamond Hill Investment Group, Inc.