Schedule III - Supplementary Insurance Information

12 Months Ended

Dec. 31, 2025

SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]

SCHEDULE III

ARCH CAPITAL GROUP LTD. AND SUBSIDIARIES

SUPPLEMENTARY INSURANCE INFORMATION

(U.S. dollars in millions)


	Deferred Acquisition Costs	Reserves for Losses and Loss Adjustment Expenses	Unearned Premiums	Net Premiums Earned	Net Investment Income (1)	Net Losses and Loss Adjustment Expenses Incurred	Amortization of Deferred Acquisition Costs	Other Operating Expenses (2)	Net Premiums Written
December 31, 2025
Insurance	$788	$17,527	$5,199	$7,771	NM	$4,764	$1,496	$1,172	$7,798
Reinsurance	872	15,523	4,545	8,122	NM	4,610	1,644	469	7,618
Mortgage	57	497	356	1,172	NM	(4)	13	185	1,060
Total	$1,717	$33,547	$10,100	$17,065	NM	$9,370	$3,153	$1,826	$16,476
December 31, 2024
Insurance	$696	$16,277	$4,857	$6,627	NM	$4,070	$1,217	$995	$6,874
Reinsurance	981	12,567	4,891	7,242	NM	4,327	1,432	270	7,746
Mortgage	57	525	470	1,231	NM	(55)	2	207	1,112
Total	$1,734	$29,369	$10,218	$15,100	NM	$8,342	$2,651	$1,472	$15,732
December 31, 2023
Insurance	$566	$12,250	$3,917	$5,446	NM	$3,122	$1,055	$819	$5,862
Reinsurance	901	9,924	4,254	5,836	NM	3,227	1,240	288	6,554
Mortgage	64	578	637	1,158	NM	(103)	17	194	1,052
Total	$1,531	$22,752	$8,808	$12,440	NM	$6,246	$2,312	$1,301	$13,468

(1) The Company does not manage its assets by segment and, accordingly, net investment income is not allocated to each underwriting segment.

(2) Certain other operating expenses relate to the Company’s corporate items. Such amounts are not reflected in the table above. See note 4, “Segment Information,” to our consolidated financial statements in Item 8 for information