SELECTED QUARTERLY FINANCIAL DATA (Unaudited)

12 Months Ended

Dec. 31, 2011

SELECTED QUARTERLY FINANCIAL DATA (Unaudited)

SELECTED QUARTERLY FINANCIAL DATA (Unaudited)

Selected quarterly financial data for 2011 and 2010 is shown in the following table. The quarterly financial data includes, in the opinion of management, all recurring adjustments necessary for a fair presentation of the results of operations for the interim periods. As a result of the Esurance Sale and AutoOne Sale, the results of operations for Esurance and AutoOne have been classified as discontinued operations and are now presented, net of related income taxes, as such in the statement of comprehensive income. Prior year amounts have been reclassified to conform to the current period’s presentation (see Note 20).

	2011 Three Months Ended												2010 Three Months Ended
Millions, except per share amounts	Dec. 31			Sept. 30			June 30			Mar. 31			Dec. 31			Sept. 30			June 30			Mar. 31
Revenues	$	593.6		$	501.3		$	553.6		$	529.6		$	552.8		$	551.0		$	670.8		$	792.1
Expenses	535.6			500.1			517.5			563.3			457.2			475.8			664.9			815.7
Pre-tax income (loss)	58.0			1.2			36.1			(33.7		)	95.6			75.2			5.9			(23.6		)
Tax benefit (expense)	124.6			.6			(10.0		)	7.7			(6.6		)	(11.7		)	1.4			—
Income (loss) from continuing operations	182.6			1.8			26.1			(26.0		)	89.0			63.5			7.3			(23.6		)
Income (loss) from discontinued operations, net of tax	674.2			(30.1		)	(1.5		)	2.5			(7.8		)	3.6			.6			(3.0		)
Noncontrolling interest in consolidated subsidiaries	(20.3		)	11.0			(20.8		)	(11.4		)	(16.6		)	(24.3		)	(10.7		)	(1.4		)
Equity in (loss) earnings of unconsolidated affiliates	(36.3		)	1.5			7.9			6.7			8.3			7.9			5.3			(11.6		)
Income (loss) attributable to White Mountains’ common shareholders	$	800.2		$	(15.8	)	$	11.7		$	(28.2	)	$	72.9		$	50.7		$	2.5		$	(39.6	)
Income (loss) attributable to White Mountains’ common shareholders:
Basic
Continuing operations	$	16.54		$	1.81		$	1.66		$	(3.82	)	$	9.77		$	5.58		$	.21		$	(4.14	)
Discontinued operations	88.50			(3.81		)	(.18		)	.31			(.94		)	.43			.07			(.34		)
Total consolidated operations	105.04			(2.00		)	1.48			(3.51		)	8.83			6.01			.28			(4.48		)
Diluted
Continuing operations	$	16.54		$	1.81		$	1.66		$	(3.82	)	$	9.77		$	5.58		$	.21		$	(4.14	)
Discontinued operations	88.50			(3.81		)	(.18		)	.31			(.94		)	.43			.07			(.34		)
Total consolidated operations	105.04			(2.00		)	1.48			(3.51		)	8.83			6.01			.28			(4.48		)
Adjusted book value per share	$	542.11		$	436.18		$	447.69		$	446.70		$	440.59		$	428.79		$	405.94		$	410.59