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Investment Securities (Tables)
 3 Months Ended
Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]  
Pre-tax net investment income
Pre-tax net investment income for the three months ended March 31, 2014 and 2013 consisted of the following:
 
 
Three Months Ended
 
 
March 31,
Millions
 
2014
 
2013
Investment income:
 
 
 
 
Fixed maturity investments
 
$
22.4

 
$
26.0

Short-term investments
 
.6

 
.8

Common equity securities
 
5.4

 
4.7

Convertible fixed maturity investments
 
.4

 
.8

Other long-term investments
 
.3

 
.7

Total investment income
 
29.1

 
33.0

Less third-party investment expenses
 
(4.8
)
 
(4.5
)
Net investment income, pre-tax
 
$
24.3

 
$
28.5
Schedule of Realized and Unrealized Gain (Loss) on Investments [Table Text Block]
Net realized and unrealized investment gains and losses for the three months ended March 31, 2014 and 2013 consisted of the following:
 
 
Three Months Ended
 
 
March 31,
Millions
 
2014
 
2013
Net realized investment gains, pre-tax
 
$
21.7

 
$
36.5

Net unrealized investment gains, pre-tax
 
42.1

 
38.7

Net realized and unrealized investment gains, pre-tax
 
63.8

 
75.2

Income tax expense attributable to net realized and
     unrealized investment gains
 
(15.7
)
 
(13.7
)
Net realized and unrealized investment gains, after tax
 
$
48.1

 
$
61.5
Realized Gain (Loss) on Investments [Table Text Block]
Net realized investment gains (losses) for the three months ended March 31, 2014 and 2013 consisted of the following:
 
 
Three Months Ended
 
Three Months Ended
 
 
March 31, 2014
 
March 31, 2013
Millions
 
Net
realized
gains
(losses)
 
Net
foreign
exchange
gains
(losses)
 
Total net realized
gains (losses)
reflected in
earnings
 
Net
realized
gains
(losses)
 
Net
foreign
currency
gains
(losses)
 
Total net realized
gains (losses)
reflected in
earnings
Fixed maturity investments
 
$
4.4

 
$
(3.5
)
 
$
.9

 
$
22.6

 
$
(14.6
)
 
$
8.0

Short-term investments
 
—

 
—

 
—

 
—

 
.1

 
.1

Common equity securities
 
18.9

 
(.1
)
 
18.8

 
22.6

 
(.2
)
 
22.4

Convertible fixed maturity investments
 
2.4

 
—

 
2.4

 
2.7

 
—

 
2.7

Other long-term investments
 
(.3
)
 
—

 
(.3
)
 
2.9

 
—

 
2.9

Forward contracts
 
(.1
)
 
—

 
(.1
)
 
.4

 
—

 
.4

Net realized investment gains (losses),
   pre-tax
 
25.3

 
(3.6
)
 
21.7

 
51.2

 
(14.7
)
 
36.5

Income tax expense attributable to
net realized investment
(losses) gains
 
(4.6
)
 
.9

 
(3.7
)
 
(11.8
)
 
3.3

 
(8.5
)
Net realized investment gains (losses),
   after tax
 
$
20.7

 
$
(2.7
)
 
$
18.0

 
$
39.4

 
$
(11.4
)
 
$
28.0
Schedule of unrealized gain (loss) on investments
he following table summarizes net unrealized investment gains (losses) for the three months ended March 31, 2014 and 2013:
 
 
Three Months Ended
 
Three Months Ended
 
 
March 31, 2014
 
March 31, 2013
Millions
 
Net
unrealized
gains
(losses)
 
Net
foreign
exchange
gains
(losses)
 
Total net unrealized
gains (losses)
reflected in
earnings
 
Net
unrealized
gains
(losses)
 
Net
foreign
currency
gains
(losses)
 
Total net unrealized
gains (losses)
reflected in
earnings
Fixed maturity investments
 
$
19.4

 
$
12.2

 
$
31.6

 
$
(30.6
)
 
$
4.6

 
$
(26.0
)
Short-term investments
 
—

 
—

 
—

 
—

 
—

 
—

Common equity securities
 
4.0

 
.5

 
4.5

 
61.9

 
—

 
61.9

Convertible fixed maturity investments
 
.7

 
—

 
.7

 
(1.1
)
 
(.2
)
 
(1.3
)
Other long-term investments
 
4.9

 
.4

 
5.3

 
3.6

 
.5

 
4.1

Forward contracts
 
—

 
—

 
—

 
—

 
—

 
—

Net unrealized investment gains
   (losses), pre-tax
 
29.0

 
13.1

 
42.1

 
33.8

 
4.9

 
38.7

Income tax expense attributable to
net unrealized investment
(losses) gains
 
(9.1
)
 
(2.9
)
 
(12.0
)
 
(4.1
)
 
(1.1
)
 
(5.2
)
Net unrealized investment gains
   (losses), after tax
 
$
19.9

 
$
10.2

 
$
30.1

 
$
29.7

 
$
3.8

 
$
33.5
Net unrealized investment gains (losses) for Level 3 investments
The following table summarizes the amount of total pre-tax gains included in earnings attributable to unrealized investment gains for Level 3 investments for the three months ended March 31, 2014 and 2013:
 
 
Three Months Ended
 
 
March 31,
Millions
 
2014
 
2013
Fixed maturity investments
 
$
.2

 
$
.2

Common equity securities
 
.8

 
(.1
)
Other long-term investments
 
6.1

 
6.4

Total unrealized investment gains, pre-tax - Level 3 investments
 
$
7.1

 
$
6.5
Investment holdings, equity securities, convertible fixed maturities and other long-term investments
The cost or amortized cost, gross unrealized investment gains and losses, net foreign currency gains and losses, and carrying values of White Mountains’s fixed maturity investments as of March 31, 2014 and December 31, 2013 were as follows: 
 
 
March 31, 2014
Millions
 
Cost or
amortized
cost
 
Gross
unrealized
gains
 
Gross
unrealized
losses
 
Net foreign
currency
gains (losses)
 
Carrying
value
U.S. Government and agency obligations
 
$
539.2

 
$
.6

 
$
(.8
)
 
$
(.6
)
 
$
538.4

Debt securities issued by corporations
 
2,311.6

 
48.3

 
(7.1
)
 
(6.3
)
 
2,346.5

Municipal obligations
 
33.5

 
.2

 
(.2
)
 
—

 
33.5

Mortgage-backed and asset-backed securities
 
1,847.9

 
4.1

 
(6.3
)
 
(3.5
)
 
1,842.2

Foreign government, agency and provincial obligations
 
366.4

 
3.4

 
(1.1
)
 
(4.3
)
 
364.4

Preferred stocks
 
79.9

 
6.1

 
—

 
(.1
)
 
85.9

Total fixed maturity investments including assets
    held for sale
 
$
5,178.5

 
$
62.7

 
$
(15.5
)
 
$
(14.8
)
 
$
5,210.9

Fixed maturity investments reclassified to assets
    held for sale related to the Runoff Transaction
 
 
 
 
 
 
 
 
 
(222.2
)
Total fixed maturity investments
 
 
 
 
 
 
 
 
 
$
4,988.7

 
 
 
December 31, 2013
Millions
 
Cost or
amortized
cost
 
Gross
unrealized
gains
 
Gross
unrealized
losses
 
Net foreign
currency
gains (losses)
 
Carrying
value
U.S. Government and agency obligations
 
$
365.5

 
$
.5

 
$
(1.0
)
 
$
(2.5
)
 
$
362.5

Debt securities issued by corporations
 
2,330.7

 
44.0

 
(13.2
)
 
(14.3
)
 
2,347.2

Municipal obligations
 
18.3

 
—

 
(.4
)
 
—

 
17.9

Mortgage-backed and asset-backed securities
 
2,027.3

 
2.4

 
(9.9
)
 
(5.3
)
 
2,014.5

Foreign government, agency and provincial obligations
 
444.2

 
3.7

 
(3.2
)
 
(4.8
)
 
439.9

Preferred stocks
 
79.9

 
5.1

 
—

 
(.2
)
 
84.8

Total fixed maturity investments including assets
    held for sale
 
$
5,265.9

 
$
55.7

 
$
(27.7
)
 
$
(27.1
)
 
$
5,266.8

Fixed maturity investments reclassified to assets
    held for sale related to the Runoff Transaction
 
 

 
 

 
 

 
 

 
(236.3
)
Total fixed maturity investments
 
 

 
 

 
 

 
 

 
$
5,030.5


The cost or amortized cost, gross unrealized investment gains and losses, net foreign currency gains and losses, and carrying values of White Mountains’s common equity securities, convertible fixed maturities and other long-term investments as of March 31, 2014 and December 31, 2013 were as follows:
 
 
March 31, 2014
Millions
 
Cost or
amortized
cost
 
Gross
unrealized
gains
 
Gross
unrealized
losses
 
Net foreign
currency
gains (losses)
 
Carrying
value
Common equity securities
 
$
905.6

 
$
273.9

 
$
(4.5
)
 
$
(.4
)
 
$
1,174.6

Convertible fixed maturity investments
 
$
64.3

 
$
10.6

 
$
(1.0
)
 
$
(.1
)
 
$
73.8

Other long-term investments
 
$
246.4

 
$
83.4

 
$
(25.5
)
 
$
(2.0
)
 
$
302.3

 
 
December 31, 2013
Millions
 
Cost or
amortized
cost
 
Gross
unrealized
gains
 
Gross
unrealized
losses
 
Net foreign
currency
gains (losses)
 
Carrying
value
Common equity securities
 
$
890.2

 
$
271.0

 
$
(3.6
)
 
$
(.8
)
 
$
1,156.8

Convertible fixed maturity investments
 
$
71.7

 
$
9.9

 
$
(.9
)
 
$
(.2
)
 
$
80.5

Other long-term investments
 
$
238.3

 
$
79.6

 
$
(26.6
)
 
$
(2.4
)
 
$
288.9
Other long-term investments
The following table summarizes investments in hedge funds and private equity interests by investment objective and sector at March 31, 2014 and December 31, 2013:
 
 
March 31, 2014
 
December 31, 2013
Millions
 
Fair Value
 
Unfunded
Commitments
 
Fair Value
 
Unfunded
Commitments
Hedge funds
 
 

 
 

 
 

 
 

Long/short equity
 
$
67.6

 
$
—

 
$
62.6

 
$
—

Long/short credit & distressed
 
23.3

 
—

 
22.8

 
—

Long/short equity REIT
 
18.8

 
—

 
18.3

 
—

Long/short equity activist
 
16.3

 
—

 
16.8

 
—

Long bank loan
 
.2

 
—

 
.2

 
—

Long diversified strategies
 
—

 
—

 
.1

 
—

Total hedge funds
 
126.2

 
—

 
120.8

 
—

 
 
 
 
 
 
 
 
 
Private equity funds
 
 

 
 

 
 

 
 

Energy infrastructure & services
 
46.8

 
12.7

 
45.9

 
13.1

Multi-sector
 
24.1

 
6.4

 
23.8

 
6.5

Manufacturing/Industrial
 
11.5

 
15.2

 
11.2

 
15.5

Aerospace/Defense/Government
 
10.6

 
15.5

 
5.8

 
19.2

Private equity secondaries
 
9.2

 
3.1

 
9.5

 
3.1

Healthcare
 
7.8

 
2.8

 
5.6

 
2.8

Real estate
 
7.1

 
3.3

 
8.2

 
3.3

Insurance
 
2.4

 
41.3

 
2.3

 
41.3

Venture capital
 
1.6

 
.3

 
1.6

 
.3

International multi-sector, Asia
 
—

 
2.7

 
—

 
2.7

International multi-sector, Europe
 
3.8

 
2.8

 
3.9

 
2.8

Total private equity funds
 
124.9

 
106.1

 
118.2

 
110.6

 
 
 
 
 
 
 
 
 
Total hedge and private equity funds included in
   other long-term investments(1)
 
$
251.1

 
$
106.1

 
$
239.0

 
$
110.6


(1)  Excludes carrying value of $25.0 and $26.6 at March 31, 2014 and December 31, 2013 associated with hedge funds and private equity funds accounted for using the equity method.
Fair value of hedge funds subject to restrictions on redemption frequency and advance notice period requirements for investments in active hedge funds
The following summarizes the March 31, 2014 fair value of hedge funds subject to restrictions on redemption frequency and advance notice period requirements for investments in active hedge funds:
 
 
Notice Period
Millions
Redemption frequency
 
30-59 days
notice
 
60-89 days
notice
 
90-119 days
notice
 
120+ days
notice
 
Total
Monthly
 
$
4.9

 
$
—

 
$
—

 
$
5.5

 
$
10.4

Quarterly
 
29.4

 
30.4

 
11.9

 
8.8

 
80.5

Semi-annual
 
—

 
25.8

 
—

 
—

 
25.8

Annual
 
—

 
—

 
9.3

 
.2

 
9.5

Total
 
$
34.3

 
$
56.2

 
$
21.2

 
$
14.5

 
$
126.2
Fair Value of private equity funds subject to lock-up periods
At March 31, 2014, investments in private equity funds were subject to lock-up periods as follows:
Millions
 
1-3 years
 
3 – 5 years
 
5 – 10 years
 
>10 years
 
Total
Private Equity Funds — expected lock-up period remaining
 
$6.5
 
$29.5
 
$75.7
 
$13.2
 
$124.9
Fair value measurements by level, investment securities
The following tables summarize White Mountains’s fair value measurements for investments at March 31, 2014 and December 31, 2013, by level:
 
 
March 31, 2014
Millions
 
Fair value
 
Level 1
 
Level 2
 
Level 3
Fixed maturity investments:
 
 

 
 

 
 

 
 

U.S. Government and agency obligations
 
$
538.4

 
$
471.7

 
$
66.7

 
$
—

 
 
 
 
 
 
 
 
 
Debt securities issued by corporations:
 
 

 
 
 
 
 
 
Consumer
 
741.0

 
—

 
741.0

 
—

Financials
 
446.0

 
—

 
446.0

 
—

Communications
 
267.5

 
—

 
267.5

 
—

Industrial
 
251.5

 
—

 
251.5

 
—

Energy
 
194.2

 
—

 
194.2

 
—

Utilities
 
132.7

 
—

 
132.7

 
—

Basic Materials
 
140.1

 
—

 
140.1

 
—

Technology
 
91.5

 
—

 
91.5

 
—

Other
 
82.0

 
—

 
82.0

 
—

Total debt securities issued by corporations:
 
2,346.5

 
—

 
2,346.5

 
—

 
 
 
 
 
 
 
 
 
Mortgage-backed and asset-backed securities
 
1,842.2

 
—

 
1,800.6

 
41.6

Foreign government, agency and provincial obligations
 
364.4

 
42.8

 
321.6

 
—

Preferred stocks
 
85.9

 
—

 
14.6

 
71.3

Municipal obligations
 
33.5

 
—

 
33.5

 
—

Total fixed maturity investments (1)
 
5,210.9

 
514.5

 
4,583.5

 
112.9

 
 
 
 
 
 
 
 
 
Short-term investments
 
674.0

 
666.6

 
7.4

 
—

 
 
 
 
 
 
 
 
 
Common equity securities:
 
 

 
 

 
 

 
 

Financials
 
359.8

 
312.9

 
—

 
46.9

Consumer
 
313.8

 
313.8

 
—

 
—

Industrial
 
106.5

 
106.5

 
—

 
—

Energy
 
81.1

 
81.1

 
—

 
—

Communications
 
56.5

 
56.5

 
—

 
—

Basic materials
 
56.0

 
56.0

 
—

 
—

Technology
 
44.9

 
44.9

 
—

 
—

Utilities
 
36.7

 
36.7

 
—

 
—

Other
 
119.3

 
42.7

 
76.3

 
.3

Total common equity securities
 
1,174.6

 
1,051.1

 
76.3

 
47.2

 
 
 
 
 
 
 
 
 
Convertible fixed maturity investments
 
73.8

 
—

 
67.7

 
6.1

Other long-term investments (2) 
 
277.4

 
—

 
—

 
277.4

Total investments
 
$
7,410.7

 
$
2,232.2

 
$
4,734.9

 
$
443.6

(1) Carrying value includes $222.2 that is classified as assets held for sale relating to discontinued operations.
(2) Excludes carrying value of $25.0 associated with other long-term investment limited partnerships accounted for using the equity method and $(0.1) related to forward contracts.

 
 
December 31, 2013
Millions
 
Fair value
 
Level 1
 
Level 2
 
Level 3
Fixed maturity investments:
 
 

 
 

 
 

 
 

U.S. Government and agency obligations
 
$
362.5

 
$
295.8

 
$
66.7

 
$
—

 
 
 
 
 
 
 
 
 
Debt securities issued by corporations:
 
 

 
 

 
 

 
 

Consumer
 
754.4

 
—

 
754.4

 
—

Industrial
 
434.4

 
—

 
434.4

 
—

Communications
 
281.1

 
—

 
281.1

 
—

Financials
 
265.0

 
—

 
265.0

 
—

Basic materials
 
173.6

 
—

 
173.6

 
—

Energy
 
159.7

 
—

 
159.7

 
—

Utilities
 
149.1

 
—

 
149.1

 
—

Technology
 
91.2

 
—

 
91.2

 
—

Other
 
38.7

 
—

 
38.7

 
—

Total debt securities issued by corporations:
 
2,347.2

 
—

 
2,347.2

 
—

 
 
 
 
 
 
 
 
 
Mortgage-backed and asset-backed securities
 
2,014.5

 
—

 
1,992.5

 
22.0

Foreign government, agency and provincial obligations
 
439.9

 
44.5

 
395.4

 
—

Preferred stocks
 
84.8

 
—

 
13.8

 
71.0

Municipal obligations
 
17.9

 
—

 
17.9

 
—

Total fixed maturity investments (1)
 
5,266.8

 
340.3

 
4,833.5

 
93.0

 
 
 
 
 
 
 
 
 
Short-term investments
 
635.9

 
621.5

 
14.4

 
—

 
 
 
 
 
 
 
 
 
Common equity securities:
 
 

 
 

 
 

 
 

Financials
 
360.4

 
314.3

 
—

 
46.1

Consumer
 
308.2

 
308.2

 
—

 
—

Industrial
 
105.4

 
105.4

 
—

 
—

Energy
 
78.6

 
78.6

 
—

 
—

Utilities
 
60.6

 
60.6

 
—

 
—

Communications
 
57.1

 
57.1

 
—

 
—

Basic materials
 
53.4

 
53.4

 
—

 
—

Technology
 
34.3

 
34.3

 
—

 
—

Other
 
98.8

 
24.5

 
74.3

 
—

Total common equity securities
 
1,156.8

 
1,036.4

 
74.3

 
46.1

 
 
 
 
 
 
 
 
 
Convertible fixed maturity investments
 
80.5

 
—

 
74.4

 
6.1

Other long-term investments (2)
 
262.4

 
—

 
—

 
262.4

Total investments
 
$
7,402.4

 
$
1,998.2

 
$
4,996.6

 
$
407.6

(1) Carrying value includes $236.3 that is classified as assets held for sale relating to discontinued operations.
(2) Excludes carrying value of $26.6 associated with other long-term investment limited partnerships accounted for using the equity method and $(0.1) related to currency forward contracts.
Debt securities issued by corporations, credit ratings
The following table summarizes the ratings of the corporate debt securities held in White Mountains’s investment portfolio as of March 31, 2014 and December 31, 2013:
 
 
Fair Value at
Millions
 
March 31, 2014
 
December 31, 2013
AAA
 
$
—

 
$
—

AA
 
221.3

 
228.8

A
 
1,028.9

 
1,039.5

BBB
 
1,089.9

 
1,075.5

BB
 
—

 
—

Other
 
6.4

 
3.4

Debt securities issued by corporations(1)
 
$
2,346.5

 
$
2,347.2

(1) Credit ratings are assigned based on the following hierarchy: 1) Standard and Poor's Financial Services LLC ("Standard & Poor’s") and 2) Moody’s Investor Service ("Moody's").
Mortgage-backed, asset-backed securities
The following table summarizes mortgage and asset-backed securities as of March 31, 2014 and December 31, 2013:
 
 
March 31, 2014
 
December 31, 2013
Millions
 
Fair Value
 
Level 2
 
Level 3
 
Fair Value
 
Level 2
 
Level 3
Mortgage-backed securities:
 
 

 
 

 
 

 
 

 
 

 
 

Agency:
 
 

 
 

 
 

 
 

 
 

 
 

GNMA
 
$
464.8

 
$
464.8

 
$
—

 
$
512.3

 
$
512.3

 
$
—

FNMA
 
167.3

 
167.3

 
—

 
81.2

 
81.2

 
—

FHLMC
 
85.6

 
85.6

 
—

 
91.3

 
91.3

 
—

Total Agency(1)
 
717.7

 
717.7

 
—

 
684.8

 
684.8

 
—

Non-agency:
 
 

 
 

 
 

 
 

 
 

 
 

Residential
 
132.3

 
132.3

 
—

 
125.7

 
125.7

 
—

Commercial
 
329.7

 
310.1

 
19.6

 
282.3

 
282.3

 
—

Total Non-agency
 
462.0

 
442.4

 
19.6

 
408.0

 
408.0

 
—

 
 
 
 
 
 
 
 
 
 
 
 
 
Total mortgage-backed securities
 
1,179.7

 
1,160.1

 
19.6

 
1,092.8

 
1,092.8

 
—

Other asset-backed securities:
 
 

 
 
 
 
 
 

 
 
 
 
Credit card receivables
 
229.7

 
207.7

 
22.0

 
311.4

 
289.4

 
22.0

Vehicle receivables
 
231.5

 
231.5

 
—

 
365.0

 
365.0

 
—

Other
 
201.3

 
201.3

 
—

 
245.3

 
245.3

 
—

Total other asset-backed securities
 
662.5

 
640.5

 
22.0

 
921.7

 
899.7

 
22.0

Total mortgage and asset-backed securities
 
$
1,842.2

 
$
1,800.6

 
$
41.6

 
$
2,014.5

 
$
1,992.5

 
$
22.0

(1)  Represents publicly traded mortgage-backed securities which carry the full faith and credit guaranty of the U.S. government (i.e., GNMA) or are guaranteed by a government sponsored entity (i.e., FNMA, FHLMC).
Schedule of security issuance years of investments in non-agency RMBS and non-agency CMBS securities
The security issuance years of White Mountains’s investments in non-agency RMBS and non-agency CMBS securities as of March 31, 2014 are as follows:
 
 
 
 
 
 
Security Issuance Year
 
 
 
 
Millions
 
Fair Value
 
2004
 
2005
 
2006
 
2007
 
2008
2009
 
2010
 
2011
 
2012
 
2013
 
2014
Non-agency RMBS
 
$
132.3

 
$
11.3

 
$
20.2

 
$
11.0

 
$
—

 
$
19.6

$
—

 
$
26.4

 
$
—

 
$
—

 
$
32.8

 
$
11.0

Non-agency CMBS
 
329.7

 
—

 
—

 
8.5

 
5.0

 
26.4

—

 
13.0

 
27.0

 
131.8

 
94.3

 
23.7

Total
 
$
462.0

 
$
11.3

 
$
20.2

 
$
19.5

 
$
5.0

 
$
46.0

$
—

 
$
39.4

 
$
27.0

 
$
131.8

 
$
127.1

 
$
34.7
Non-agency residential mortgage securities, collateral quality and tranche levels
The classification of the underlying collateral quality and the tranche levels of White Mountains’s non-agency RMBS securities are as follows as of March 31, 2014:
Millions
 
Fair Value
 
Super Senior (1)
 
Senior (2)
 
Subordinate (3)
Prime
 
$
105.9

 
$
32.4

 
$
73.5

 
$
—

Non-prime
 
19.2

 
—

 
19.2

 
—

Sub-prime
 
7.2

 
7.2

 
—

 
—

Total
 
$
132.3

 
$
39.6

 
$
92.7

 
$
—

(1)  At issuance, Super Senior, or in the case of resecuritization, the underlying securities, were rated "AAA" by Standard & Poor’s, "Aaa" by Moody’s or "AAA" by Fitch and were senior to other "AAA" or "Aaa" bonds.
(2) At issuance, Senior, or in the case of resecuritization, the underlying securities, were rated "AAA" by Standard & Poor’s, "Aaa" by Moody’s or "AAA" by Fitch and were senior to non-"AAA" or non-"Aaa" bonds.
(3) At issuance, Subordinate were not rated "AAA" by Standard & Poor’s, "Aaa" by Moody’s or "AAA" by Fitch and were junior to "AAA" or "Aaa" bonds. 
Non-agency commercial mortgage securities, type of interest rate and tranche levels
 The amount of fixed and floating rate securities and their tranche levels of White Mountains’s non-agency CMBS securities are as follows as of March 31, 2014:
Millions
 
Fair Value
 
Super Senior (1)
 
Senior (2)
 
Subordinate (3)
Fixed rate CMBS
 
$
225.1

 
$
123.5

 
$
76.0

 
$
25.6

Floating rate CMBS
 
104.6

 
5.0

 
26.4

 
73.2

Total
 
$
329.7

 
$
128.5

 
$
102.4

 
$
98.8

(1)  At issuance, Super Senior, or in the case of resecuritization, the underlying securities, were rated "AAA" by Standard & Poor’s, "Aaa" by Moody’s or "AAA" by Fitch and were senior to other "AAA" or "Aaa" bonds.
(2) At issuance, Senior, or in the case of resecuritization, the underlying securities, were rated "AAA" by Standard & Poor’s, "Aaa" by Moody’s or "AAA" by Fitch and were senior to non-"AAA" or non-"Aaa" bonds.
(3) At issuance, Subordinate were not rated "AAA" by Standard & Poor’s, "Aaa" by Moody’s or "AAA" by Fitch and were junior to "AAA" or "Aaa" bonds. 
Rollforward of fair value investments by level
The following tables summarize the changes in White Mountains’s fair value measurements by level for the three months ended March 31, 2014 and 2013:
 
 
 
Level 3 Investments
 
 
 
Millions
Level 1 Investments
Level 2 
Investments
Fixed
Maturities
Common
equity
securities
Convertible
fixed
maturities
Other long-term
investments
 
Total
 
Balance at January 1, 2014
$
1,376.7

$
4,982.2

$
93.0

$
46.1

$
6.1

$
262.4

 
$
6,766.5

(1)(2)(3) 
Total realized and unrealized
   gains (losses)
22.2

34.7

.4

.8

—

6.3

 
64.4

(4) 
Foreign currency losses
   through OCI
(2.9
)
(10.5
)
(.1
)
—

—

(.3
)
 
(13.8
)
  
Amortization/Accretion
(.2
)
(11.1
)
—

—

—

—

 
(11.3
)
 
Purchases
352.6

840.4

19.6

.3

—

12.7

 
1,225.6

 
Sales
(180.1
)
(1,115.5
)
—

—

—

(3.7
)
 
(1,299.3
)
 
Net change in investments
   related to (sales) purchases
   of consolidated affiliates
(2.7
)
7.3

—

—

—

—

 
4.6

 
Transfers in
—

—

—

—

—

—

 
—

  
Transfers out
—

—

—

—

—

—

 
—

  
Balance at
   March 31, 2014
$
1,565.6

$
4,727.5

$
112.9

$
47.2

$
6.1

$
277.4

 
$
6,736.7

(1)(2)(3)(4) 
(1)  Excludes carrying value of $26.6 and $25.0 at January 1, 2014 and March 31, 2014 associated with other long-term investments accounted for using the equity method and $(0.1) and $(0.1) at January 1, 2014 and March 31, 2014 related to forward contracts.
(2)  Carrying value includes $236.3 and $222.2 at January 1, 2014 and March 31, 2014 that is classified as assets held for sale relating to discontinued operations.
(3)  Excludes carrying value of $635.9 and $674.0 at January 1, 2014 and March 31, 2014 associated with short-term investments.
(4) Excludes $0.7 realized and unrealized gains associated with the Prospector Funds consolidation of investment-related liabilities and $1.2 realized and unrealized losses associated with other long-term investments accounted for using the equity method.

 
 
 
Level 3 Investments
 
 
 
Millions
Level 1 Investments
Level 2
Investments
Fixed
Maturities
Common
equity
securities
Convertible
fixed
maturities
Other long-term
investments
 
Total
 
Balance at January 1, 2013
$
1,355.1

$
5,206.1

$
92.9

$
37.3

$
—

$
259.3

 
$
6,950.7

(1)(2)(3) 
Total realized and
   unrealized gains (losses)
80.1

(10.8
)
.1

(.1
)
—

5.8

 
75.1

(3) 
Foreign currency losses
   through OCI
(.4
)
(4.8
)
—

—

—

(.4
)
 
(5.6
)
 
Amortization/Accretion
(.4
)
(14.0
)
—

—

—

—

 
(14.4
)
 
Purchases
318.6

1,445.8

8.0

—

—

18.9

 
1,791.3

 
Sales
(382.3
)
(1,828.3
)
—

—

—

(23.1
)
 
(2,233.7
)
 
Net change in investments
related to purchases (sales)
of consolidated affiliates
14.5

2.7

—

—

—

—

 
17.2

 
Transfers in
1.2

—

—

—

—

—

 
1.2

 
Transfers out
—

(.8
)
—

(.4
)
—

—

 
(1.2
)
 
Balance at
   March 31, 2013
1,386.4

4,795.9

101.0

36.8

—

260.5

 
6,580.6

(1)(2)(3) 
(1) Excludes carrying value of $35.0 and $34.9 at January 1, 2013 and March 31, 2013 associated with other long-term investment limited partnerships accounted for using the equity method and $(0.1) and $(0.2) at January 1, 2013 and March 31, 2013 related to forward contracts.
(2)  Carrying value includes $338.1 and 296.9 at January 1, 2013 and March 31, 2013 that is classified as assets held for sale relating to discontinued operations.
(3) Excludes carrying value of $630.6 and $654.4 at January 1, 2013 and March 31, 2013 and realized and unrealized loss for the period of $0.1 associated with short-term investments.
Schedule of significant unobservable inputs used in estimating the fair value of investment securities
The following summarizes significant unobservable inputs used in estimating the fair value of investment securities classified within Level 3 other than hedge funds and private equity funds. The fair value of investments in hedge funds and private equity funds, which are classified within Level 3, are estimated using the net asset value of the funds.
($ in Millions)
 
March 31, 2014
Description
 
Fair Value
 
Rating (2)
 
Valuation Technique(s)
 
Unobservable Input
Non-agency commercial mortgage backed securities(1)
 
$13.3
 
AAA
 
Discounted cash flow
 
Discount Spread over Swap
 
0.8%
 
 
 
 
 
 
 
 
 
Prepayment rate
 
0.0%
CPY
 
 
 
 
 
 
 
 
Default rate
 
0.0%
CDR
Asset-backed securities(1)
 
$22.0
 
AA+
 
Broker pricing
 
Broker quote
 

 
Non-agency commercial mortgage backed securities(1)
 
$6.3
 
BBB-
 
Broker pricing
 
Broker quote
 

 
Preferred stock(1)
 
$71.3
 
NR
 
Discounted cash flow
 
Discount yield
 
6.9%
 
Private equity security(1)
 
$36.4
 
NR
 
Multiple of GAAP book value
 
Book value multiple
 
1.0
 
Private equity security(1)
 
$10.5
 
NR
 
Share price of recent transaction
 
Average share price
 
$1.10
 
Convertible preferred securities
 
$6.1
 
NR
 
Share price of recent transaction
 
Recent market transaction
 
$6.1
 
(1) As of March 31, 2014, consists of one security.
(2) Credit ratings are assigned based on the following hierarchy: 1) Standard and Poor's and 2) Moody’s.

($ in Millions)
 
December 31, 2013
Description
 
Fair Value
 
Rating (2)
 
Valuation Technique(s)
 
Unobservable Input
Asset-backed securities(1)
 
$22.0
 
AA+
 
Broker pricing
 
Broker quote
 
 
 
Preferred stock(1)
 
$71.0
 
NR
 
Discounted cash flow
 
Discount yield
 
7.4%
 
Private equity security(1)
 
$35.6
 
NR
 
Multiple of GAAP book value
 
Book value multiple
 
1.0
 
Private equity security(1)
 
$10.5
 
NR
 
Share price of recent transaction
 
Average share price
 
$1.10
 
Convertible preferred securities
 
$6.1
 
NR
 
Share price of recent transaction
 
Recent market transaction
 
$6.1
 
(1) As of December 31, 2013, consists of one security.
(2) Credit ratings are assigned based on the following hierarchy: 1) Standard and Poor's and 2) Moody’s.