SCHEDULE VI SUPPLEMENTAL INFORMATION FOR PROPERTY AND CASUALTY INSURANCE UNDERWRITERS

12 Months Ended

Dec. 31, 2017

WHITE MOUNTAINS INSURANCE GROUP, LTD.

SUPPLEMENTAL INFORMATION FOR PROPERTY AND CASUALTY INSURANCE UNDERWRITERS ⁽²⁾



Column A	Column B		Column C		Column D		Column E		Column F		Column G		Column H					Column I		Column J		Column K
Millions	Deferred acquisition costs		Reserves for Unpaid Claims and Claims Adjustment Expenses		Discount, if any, deducted in Column C		Unearned Premiums		Earned Premiums		Net investment income		Claims and Claims Adjustment Expenses Incurred Related to					Amortization of deferred policy acquisition costs		Paid Claims and Claims Adjustment Expenses		Premiums written
Affiliation with registrant	Deferred acquisition costs		Reserves for Unpaid Claims and Claims Adjustment Expenses		Discount, if any, deducted in Column C		Unearned Premiums		Earned Premiums		Net investment income		Current Year		Prior Year			Amortization of deferred policy acquisition costs		Paid Claims and Claims Adjustment Expenses		Premiums written
Other operations ⁽¹⁾:
2017	$	—	$	—	$	—	$	—	$	1.0	$	—	$	1.1	$	—		$	0.1	$	—	$	0.9
2016	—		—		—		—		7.5		.2		8.6		(0.6		)	2.2		8.8		6.5
2015	—		—		—		—		8.7		.2		10.4		(2.2		)	3.4		10.4		10.1


⁽¹⁾	The Other operations amounts shown relate to SSIE. White Mountains completed the sale of SSIE on March 7, 2017. See Note 19 — “Held for Sale and Discontinued Operations”.


⁽²⁾	Schedule excludes amounts related to OneBeacon and Sirius Group for all periods presented. See Note 19 — “Held for Sale and Discontinued Operations”.

Schedules of the Registrant should be read in conjunction with the Consolidated Financial Statements and Notes.