Municipal Bond Guarantee Insurance (Tables)

12 Months Ended

Dec. 31, 2017

Financial Guarantee Insurance Contracts, Premium Received over Contract Period

The following table presents a schedule of BAM’s future premium revenues as of December 31, 2017:



Millions	December 31, 2017
January 1, 2018 - March 31, 2018	$	2.9
April 1, 2018 - June 30, 2018	2.9
July 1, 2018 - September 30, 2018	2.9
October 1, 2018 - December 31, 2018	2.8
	11.5

2019	11.1
2020	10.7
2021	10.2
2022	9.7
2023 and thereafter	83.6
Total gross unearned insurance premiums	$	136.8

Schedule of Insured Obligations

The following table presents a schedule of BAM’s insured obligations as of December 31, 2017 and 2016:



	December 31, 2017		December 31, 2016
Contracts outstanding	6,371		4,807
Remaining weighted average contract period (in years)	10.9		10.8
Contractual debt service outstanding (in millions):
Principal	$	42,090.6	$	33,057.3
Interest	21,057.1		16,396.6
Total debt service outstanding	$	63,147.7	$	49,453.9

Gross unearned insurance premiums	$	136.8	$	82.9

Schedule of Net Written Premiums

The following table presents a schedule of net written premiums included in White Mountains’s HG Global/BAM segment for the years ended December 31, 2017, 2016 and 2015:



Millions	December 31, 2017		December 31, 2016		December 31, 2015
Gross written premiums	$	63.2	$	38.6	$	25.9
Assumed (ceded) written premiums	—		—		—
Net written premiums	$	63.2	$	38.6	$	25.9