3.	Investments

(a) Unrealized Gains and Losses

The amortized cost or cost and the fair value of AFS securities as of March 31, 2013 and December 31, 2012 are summarized as follows (in millions):


	Amortized Cost or Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
As of March 31, 2013
Equity securities:
Common stock*	$	1,852.6	$	208.6	$	(56.3	)	$	2,004.9
Preferred stock		—		—		—			—

Total equity securities		1,852.6		208.6		(56.3	)		2,004.9

Debt securities:
U.S. Government obligations		515.7		6.6		(0.2	)		522.1
Municipal bonds		6,163.9		167.0		(9.1	)		6,321.8
Foreign government obligations		805.3		16.3		(0.5	)		821.1
U.S. corporate bonds		2,785.0		59.5		(2.0	)		2,842.5
Foreign corporate bonds		1,894.2		56.6		(0.7	)		1,950.1
Mortgage and asset-backed securities:
RMBS		1,574.3		45.7		(8.8	)		1,611.2
CMBS		609.0		19.8		(1.2	)		627.6
Other asset-backed securities		408.4		5.8		(0.1	)		414.1

Total debt securities		14,755.8		377.3		(22.6	)		15,110.5
Short-term investments		757.1		—		—			757.1

Total	$	17,365.5	$	585.9	$	(78.9	)	$	17,872.5


	Amortized Cost or Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
As of December 31, 2012
Equity securities:
Common stock*	$	1,436.5	$	90.3	$	(102.8	)	$	1,424.0
Preferred stock		—		—		—			—

Total equity securities		1,436.5		90.3		(102.8	)		1,424.0

Debt securities:
U.S. Government obligations		514.9		8.1		(0.1	)		522.9
Municipal bonds		6,122.6		185.9		(4.4	)		6,304.1
Foreign government obligations		800.9		15.6		(0.5	)		816.0
U.S. corporate bonds		3,448.1		69.7		(2.1	)		3,515.7
Foreign corporate bonds		2,137.7		61.1		(0.3	)		2,198.5
Mortgage and asset-backed securities:
RMBS		1,617.4		50.8		(5.7	)		1,662.5
CMBS		486.6		26.1		(2.6	)		510.1
Other asset-backed securities		465.1		4.6		—			469.7

Total debt securities		15,593.3		421.9		(15.7	)		15,999.5
Short-term investments		366.0		—		—			366.0

Total	$	17,395.8	$	512.2	$	(118.5	)	$	17,789.5

*	Of the $2,004.9 million and $1,424.0 million of fair value as of March 31, 2013 and December 31, 2012, respectively, $775.0 million and $542.2 million, respectively, related to certain energy sector businesses.

(b) Contractual Maturity

The amortized cost and estimated fair value of debt securities as of March 31, 2013 by contractual maturity are shown below (in millions). Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.


	Amortized Cost or Cost		Fair Value
Short-term investments due in one year or less	$	757.1	$	757.1


Mortgage and asset-backed securities*		2,591.7		2,652.9
Debt securities with maturity dates:
One year or less		619.2		621.5
Over one through five years		4,223.2		4,297.3
Over five through ten years		3,661.3		3,784.0
Over ten years		3,660.4		3,754.8

Total debt securities		14,755.8		15,110.5


Equity securities		1,852.6		2,004.9

Total	$	17,365.5	$	17,872.5

*	Mortgage and asset-backed securities by their nature do not generally have single maturity dates.

(c) Net Investment Income

Net investment income for the three months ended March 31, 2013 and 2012 was as follows (in millions):


	Three Months Ended March 31,
	2013			2012
Interest income	$	83.5		$	41.1
Dividend income		15.1			1.9
Investment expenses		(5.0	)		(2.8	)
Equity income (losses) of Homesite		21.4			14.6
Equity income (losses) of ORX		0.7			(1.8	)
Equity income of Pillar Investments*		1.6			—
Other investment income		1.5			0.2

Total	$	118.8		$	53.2

*	See Note 3(g) for discussion of the Pillar Investments.

As of March 31, 2013, non-income producing invested assets were insignificant.

(d) Realized Gains and Losses

The proceeds from sales of AFS securities were $3.0 billion and $0.7 billion for the three months ended March 31, 2013 and 2012, respectively.

Realized capital gains and losses in the three months ended March 31, 2013 and 2012 arose primarily from the sales of equity securities. Realized capital gains for the three months ended March 31, 2012 include $63.1 million of capital gains from the sales of shares of common stock of Exxon Mobil Corporation in January 2012. The amount of gross realized capital gains and gross realized capital losses of AFS securities for the three months ended March 31, 2013 and 2012 were as follows (in millions):


	Three Months Ended March 31,
	2013			2012
Gross realized capital gains	$	61.7		$	72.9
Gross realized capital losses		(10.8	)		(4.9	)

Net realized capital gains	$	50.9		$	68.0

Gross realized loss amounts exclude OTTI losses, as discussed below.

(e) OTTI losses

Alleghany holds its equity and debt securities as AFS, and as such, these securities are recorded at fair value. Alleghany continually monitors the difference between cost and the estimated fair value of its investments, which involves uncertainty as to whether declines in value are temporary in nature. The analysis of any individual security’s decline in value is performed in its functional currency. If the decline of a particular investment is deemed temporary, Alleghany records the decline as an unrealized loss in stockholders’ equity. If the decline is deemed to be other than temporary, Alleghany writes its cost- or amortized cost-basis down to the fair value of the investment and records an OTTI loss on its statement of earnings. In addition, any portion of such decline that relates to debt securities that is believed to arise from factors other than credit is recorded as a component of other comprehensive income, rather than charged against earnings.

Management’s assessment of equity securities initially involves an evaluation of all securities that are in an unrealized loss position, regardless of the duration or severity of the loss, as of the applicable balance sheet date. Such initial review consists primarily of assessing whether: (i) there has been a negative credit or news event with respect to the issuer that could indicate the existence of an OTTI; and (ii) Alleghany has the ability and intent to hold an equity security for a period of time sufficient to allow for an anticipated recovery (generally considered to be less than one year from the balance sheet date).

To the extent that an equity security in an unrealized loss position is not impaired based on the initial review described above, Alleghany then further evaluates such equity security and deems it to be other-than-temporarily impaired if it has been in an unrealized loss position for 12 months or more or if its unrealized loss position is greater than 50 percent of its cost, absent compelling evidence to the contrary.

Alleghany then evaluates those equity securities where the unrealized loss is 20 percent or more of cost as of the balance sheet date or which have been in an unrealized loss position continuously for six months or more preceding the balance sheet date. This evaluation takes into account quantitative and qualitative factors in determining whether such securities are other-than-temporarily impaired including: (i) market valuation metrics associated with the equity security (e.g., dividend yield and price-to-earnings ratio); (ii) current views on the equity security, as expressed by either Alleghany’s internal stock analysts and/or by third party stock analysts or rating agencies; and (iii) discrete credit or news events associated with a specific company, such as negative news releases and rating agency downgrades with respect to the issuer of the investment.

Debt securities in an unrealized loss position are evaluated for OTTI if they meet any of the following criteria: (i) they are trading at a 20 percent discount to amortized cost for an extended period of time (nine consecutive months or longer); (ii) there has been a negative credit or news event with respect to the issuer that could indicate the existence of an OTTI; or (iii) Alleghany intends to sell or it is more likely than not that Alleghany will sell the debt security before recovery of its amortized cost basis.

If Alleghany intends to sell, or it is more likely than not that Alleghany will sell, a debt security before recovery of its amortized cost basis, the total amount of the unrealized loss position is recognized as an OTTI loss in earnings. To the extent that a debt security that is in an unrealized loss position is not impaired based on the preceding, Alleghany will consider a debt security to be impaired when it believes it to be probable that Alleghany will not be able to collect the entire amortized cost basis. For debt securities in an unrealized loss position as of the end of each quarter, Alleghany develops a best estimate of the present value of expected cash flows. If the results of the cash flow analysis indicate Alleghany will not recover the full amount of its amortized cost basis in the security, Alleghany records an OTTI loss in earnings equal to the difference between the present value of expected cash flows and the amortized cost basis of the security. If applicable, the difference between the total unrealized loss position on the security and the OTTI loss recognized in earnings is the non-credit related portion and is recorded as a component of other comprehensive income.

In developing the cash flow analyses for debt securities, Alleghany considers various factors for the different categories of debt securities. For municipal bonds, Alleghany takes into account the taxing power of the issuer, source of revenue, credit risk and credit enhancements and pre-refunding. For mortgage and asset-backed securities, Alleghany discounts its best estimate of future cash flows at an effective rate equal to the original effective yield of the security or, in the case of floating rate securities, at the current coupon. Alleghany’s models include assumptions about prepayment speeds, default and delinquency rates, and underlying collateral (if any), as well as credit ratings, credit enhancements and other observable market data. For corporate bonds, Alleghany reviews business prospects, credit ratings and available information from asset managers and rating agencies for individual securities.

OTTI losses for the first quarter of 2013 reflect $32.3 million of unrealized losses that were deemed to be other than temporary and, as such, were required to be charged against earnings. Upon the ultimate disposition of securities for which OTTI losses have been recorded, a portion of the loss may be recoverable depending on market conditions at the time of disposition. Of the $32.3 million, $31.9 million related to the equity securities of a single issuer in the chemical sector, and $0.4 million related to debt securities. The determination that unrealized losses on such securities were other than temporary was primarily based on the duration of the decline in fair value of such securities relative to their cost as of the balance sheet date.

OTTI losses for the three months ended March 31, 2012 reflect $1.8 million of unrealized losses that were deemed to be other than temporary and, as such, were required to be charged against earnings. Of the $1.8 million, $0.9 million related to an equity security in the energy sector and $0.9 million related to debt securities. The determination that unrealized losses on such securities were other than temporary was primarily based on the duration of the decline in fair value of such securities relative to their cost as of the balance sheet date.

After adjusting the cost basis of securities for the recognition of OTTI losses, the remaining gross unrealized investment losses for debt and equity securities as of March 31, 2013 were deemed to be temporary, based on, among other things: (i) the duration of time and the relative magnitude to which fair values of these investments has been below cost was not indicative of an OTTI loss (for example, no equity security was in a continuous unrealized loss position for 12 months or more as of March 31, 2013); (ii) the absence of compelling evidence that would cause Alleghany to call into question the financial condition or near-term prospects of the issuer of the investment; and (iii) Alleghany’s ability and intent to hold the investment for a period of time sufficient to allow for any anticipated recovery.

Alleghany may ultimately record a realized loss after having originally concluded that the decline in value was temporary. Risks and uncertainties are inherent in the methodology Alleghany uses to assess other-than-temporary declines in value. Risks and uncertainties could include, but are not limited to, incorrect assumptions about financial condition, liquidity or future prospects, inadequacy of any underlying collateral, and unfavorable changes in economic conditions or social trends, interest rates or credit ratings.

(f) Aging of Gross Unrealized Losses

As of March 31, 2013 and December 31, 2012, gross unrealized investment losses and related fair values for debt securities and equity securities, grouped by length of time in a continuous unrealized loss position, were as follows (in millions):


	Less Than 12 Months				12 Months or More				Total
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
As of March 31, 2013
Equity securities:
Common stock	$	602.5	$	56.3	$	—	$	—	$	602.5	$	56.3
Preferred stock		—		—		—		—		—		—

Total equity securities		602.5		56.3		—		—		602.5		56.3

Debt securities:
U.S. Government obligations		65.4		0.2		—		—		65.4		0.2
Municipal bonds		807.7		6.3		136.8		2.8		944.5		9.1
Foreign government obligations		62.6		0.5		—		—		62.6		0.5
U.S. corporate bonds		228.5		2.0		5.4		—		233.9		2.0
Foreign corporate bonds		85.4		0.7		4.7		—		90.1		0.7
Mortgage and asset-backed securities:
RMBS		620.8		7.5		8.8		1.3		629.6		8.8
CMBS		133.1		0.9		4.4		0.3		137.5		1.2
Other asset-backed securities		48.0		0.1		0.5		—		48.5		0.1

Total debt securities		2,051.5		18.2		160.6		4.4		2,212.1		22.6

Total temporarily impaired securities	$	2,654.0	$	74.5	$	160.6	$	4.4	$	2,814.6	$	78.9


	Less Than 12 Months				12 Months or More				Total
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
As of December 31, 2012
Equity securities:
Common stock	$	796.1	$	102.8	$	—	$	—	$	796.1	$	102.8
Preferred stock		—		—		—		—		—		—

Total equity securities		796.1		102.8		—		—		796.1		102.8

Debt securities:
U.S. Government obligations		7.1		0.1		—		—		7.1		0.1
Municipal bonds		1,006.6		4.4		0.5		—		1,007.1		4.4
Foreign government obligations		102.3		0.5		—		—		102.3		0.5
U.S. corporate bonds		404.4		2.1		—		—		404.4		2.1
Foreign corporate bonds		111.4		0.3		—		—		111.4		0.3
Mortgage and asset-backed securities:
RMBS		291.4		5.7		0.6		—		292.0		5.7
CMBS		50.2		1.3		7.8		1.3		58.0		2.6
Other asset-backed securities		2.2		—		0.9		—		3.1		—

Total debt securities		1,975.6		14.4		9.8		1.3		1,985.4		15.7

Total temporarily impaired securities	$	2,771.7	$	117.2	$	9.8	$	1.3	$	2,781.5	$	118.5

As of March 31, 2013, Alleghany held a total of 384 debt and equity securities that were in an unrealized loss position, of which 28 securities, all debt securities, were in an unrealized loss position continuously for 12 months or more. Such unrealized losses associated with debt securities consisted primarily of municipal bonds and RMBS.

As of March 31, 2013, substantially all of Alleghany’s debt securities were rated investment grade, with approximately 1.8 percent of debt securities having issuer credit ratings that were below investment grade or not rated.

(g) Investments in Variable Interest Entities

In December 2012, TransRe obtained an ownership interest in Pillar Capital Holdings Limited (“Pillar Holdings”), a Bermuda-based insurance asset manager focused on collateralized reinsurance and catastrophe insurance-linked securities. Additionally, TransRe invested $175.0 million and AIHL invested $25.0 million in limited partnership funds (the “Funds”), which are managed by Pillar Holdings. In the first quarter of 2013, TransRe invested an additional $25.0 million in the Funds. The objective of the Funds is to create portfolios with attractive risk-reward characteristics and low correlation with other asset classes, using the extensive reinsurance and capital market experience of the principals of Pillar Holdings. Alleghany has concluded that both Pillar Holdings and the Funds (collectively, the “Pillar Investments”) represent variable interest entities and that Alleghany is not the primary beneficiary, as it does not have the ability to direct the activities that most significantly impact each entity’s economic performance. Therefore, the Pillar Investments are not consolidated and are accounted for under the equity method of accounting. Alleghany’s potential maximum loss is limited to its aggregate investment of $225.0 million. As of March 31, 2013, Alleghany’s carrying value in the Pillar Investments, as determined under the equity method of accounting, was $226.6 million, which is reported in other invested assets on its consolidated balance sheets.