Exhibit 99.1

Joint Filing Agreement

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, par value $0.01 per share, of Capitol Federal Financial, Inc., a Maryland corporation. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

HoldCo Opportunities Fund V, L.P.
 
By:

/s/ Michael Zaitzeff

 
  Michael Zaitzeff, Authorized Signatory
Date: 05/05/2026

 

VM GP X LLC
 
By:

/s/ Michael Zaitzeff

 
  Michael Zaitzeff, Authorized Signatory
Date: 05/05/2026

 

HoldCo Asset Management, LP
 
By:

/s/ Michael Zaitzeff

 
  Michael Zaitzeff, Authorized Signatory
Date: 05/05/2026

 

VM GP II LLC
 
By:

/s/ Michael Zaitzeff

 
  Michael Zaitzeff, Authorized Signatory
Date: 05/05/2026

 

Zaitzeff Michael
 
By:

/s/ Michael Zaitzeff

 
  Michael Zaitzeff
Date: 05/05/2026

 

Vikaran Ghei
 
By:

/s/ Vikaran Ghei

 
  Vikaran Ghei
Date: 05/05/2026