v3.26.3
AVAILABLE-FOR-SALE SECURITIES (Tables)
 3 Months Ended
Sep. 30, 2026
Investments, Debt and Equity Securities [Abstract]  
Schedule of Amortized Cost, Carrying Amount and Fair Value of Available-for-sale Securities
The amortized cost and fair value of available-for-sale securities were:
September 30, 2026
(Dollars in thousands)Amortized
Cost		Unrealized
Gains		Unrealized
Losses		Fair
Value
United States Treasury securities$710,060 $1,965 $— $712,025 
Mortgage-backed securities (MBS):
Agency1
$66,597 $25 $(2,156)$64,466 
Non-agency2
3,240 965 (111)4,094 
Total mortgage-backed securities69,837 990 (2,267)68,560 
Total available-for-sale securities
$779,897 $2,955 $(2,267)$780,585 
June 30, 2026
(Dollars in thousands)Amortized
Cost		Unrealized
Gains		Unrealized
Losses		Fair
Value
United States Treasury securities$732,118 $304 $— $732,422 
Mortgage-backed securities (MBS):
Agency1
$68,344 $215 $(1,587)$66,972 
Non-agency2
3,330 974 (31)4,273 
Total mortgage-backed securities71,674 1,189 (1,618)71,245 
Total available-for-sale securities
$803,792 $1,493 $(1,618)$803,667 
1 Includes securities guaranteed by Ginnie Mae, a U.S. government agency, and the government sponsored enterprises Fannie Mae and Freddie Mac.
2 Private sponsors of securities collateralized primarily by first-lien mortgage loans on commercial properties or by pools of 1-4 family residential first mortgages. Primarily super senior securities secured by prime, Alt-A or pay-option adjustable rate mortgages.
The following table sets forth the expected maturity distribution of our mortgage-backed securities, which is based on assumed prepayment rates, and the maturity distribution of our non-MBS, which is based on the contractual maturity:
As of September 30, 2026
(Dollars in thousands)Total AmountDue Within One YearDue after One but within Five YearsDue after Five but within Ten YearsDue After Ten Years
United States Treasury securities$710,060 $— $478,982 $231,078 $— 
MBS:
Agency$66,597 $18,712 $39,580 $7,066 $1,239 
Non-Agency3,240 430 1,352 1,073 385 
Total MBS$69,837 $19,142 $40,932 $8,139 $1,624 
Available-for-sale—Amortized cost
$779,897 $19,142 $519,914 $239,217 $1,624 
Available-for-sale—Fair value$780,585 $18,717 $519,865 $240,110 $1,893 
Schedule of Securities in a Continuous Unrealized Loss Position
Securities with unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, were:
September 30, 2026
Available-for-sale securities in loss position for
Less Than
12 Months		More Than
12 Months		Total
(Dollars in thousands)Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses
United States Treasury securities$— $— $— $— $— $— 
MBS:
Agency
$34,350 $(340)$13,746 $(1,816)$48,096 $(2,156)
Non-agency2,600 (80)170 (31)2,770 (111)
Total MBS36,950 (420)13,916 (1,847)50,866 (2,267)
Total available-for-sale securities
$36,950 $(420)$13,916 $(1,847)$50,866 $(2,267)
June 30, 2026
Available-for-sale securities in loss position for
Less Than
12 Months		More Than
12 Months		Total
(Dollars in thousands)Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses		Fair
Value		Gross
Unrealized
Losses
United States Treasury securities$— $— $— $— $— $— 
MBS:
Agency
$12,504 $(86)$14,722 $(1,501)$27,226 $(1,587)
Non-agency9 — 2,134 (31)2,143 (31)
Total MBS12,513 (86)16,856 (1,532)29,369 (1,618)
Total available-for-sale securities
$12,513 $(86)$16,856 $(1,532)$29,369 $(1,618)