Fair Value Measurements

ASC 820, Fair Value Measurements and Disclosures, establishes a three-level hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). If the inputs used to measure the assets or liabilities fall within different levels of the hierarchy, the classification is based on the lowest level input that is significant to the fair value measurement of the asset or liability.

Classification of assets and liabilities within the hierarchy considers the markets in which the assets and liabilities are traded and the reliability and transparency of the assumptions used to determine fair value. The hierarchy requires the use of observable market data when available. The levels of the hierarchy are defined as follows:

Level 1 - Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities traded in active markets.

Level 2 - Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and market-corroborated inputs.

Level 3 - Inputs to the valuation methodology are unobservable for the asset or liability and are significant to the fair value measurement.

In accordance with ASC 820, the Company determines fair value based on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In determining fair value, the Company uses various methods, including the market, income and cost approaches. The Company uses valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. The following section describes the valuation methodologies used by the Company to measure assets and liabilities at fair value, including an indication of the level within the fair value hierarchy in which each asset or liability is generally classified.

Investments available-for-sale and equity securities. Equity securities and available-for-sale investments are recorded at fair value on a recurring basis. Available-for-sale investments include fixed maturities and short-term investments. Short-term investments include certificates of deposit, commercial paper, discount notes and treasury bills with original maturities of one year or less. Fair value for investments available-for-sale and equity securities are determined by the Company after considering various sources of information, including information provided by a third party pricing service. The pricing service provides prices for substantially all of the Company's fixed maturities and equity securities. In determining fair value, the Company generally does not adjust the prices obtained from the pricing service. The Company obtains an understanding of the pricing service's valuation methodologies and related inputs, which include, but are not limited to, reported trades, benchmark yields, issuer spreads, bids, offers, duration, credit ratings, estimated cash flows and prepayment speeds. The Company validates prices provided by the pricing service by reviewing prices from other pricing sources and analyzing pricing data in certain instances.

The Company has evaluated the various types of securities in its investment portfolio to determine an appropriate fair value hierarchy level based upon trading activity and the observability of market inputs. Level 1 investments include those traded on an active exchange, such as the New York Stock Exchange. Level 2 investments include U.S. Treasury securities, U.S. government-sponsored enterprises, municipal bonds, foreign government bonds, commercial mortgage-backed securities, residential mortgage-backed securities, asset-backed securities and corporate debt securities. Level 3 investments include the Company's investments in certain insurance-linked securities funds managed by MCIM that are not traded on an active exchange, as further described and defined in note 16 (the Markel CATCo Funds), and are valued using unobservable inputs.

Fair value for investments available-for-sale and equity securities is measured based upon quoted prices in active markets, if available. Due to variations in trading volumes and the lack of quoted market prices, fixed maturities are classified as Level 2 investments. The fair value of fixed maturities is normally derived through recent reported trades for identical or similar securities, making adjustments through the reporting date based upon available market observable data described above. If there are no recent reported trades, the fair value of fixed maturities may be derived through the use of matrix pricing or model processes, where future cash flow expectations are developed based upon collateral performance and discounted at an estimated market rate. Significant inputs used to determine the fair value of obligations of states, municipalities and political subdivisions, corporate bonds and obligations of foreign governments include reported trades, benchmark yields, issuer spreads, bids, offers, credit information and estimated cash flows. Significant inputs used to determine the fair value of commercial mortgage-backed securities, residential mortgage-backed securities and asset-backed securities include the type of underlying assets, benchmark yields, prepayment speeds, collateral information, tranche type and volatility, estimated cash flows, credit information, default rates, recovery rates, issuer spreads and the year of issue.

Due to the significance of unobservable inputs required in measuring the fair value of the Company's investments in the Markel CATCo Funds, these investments are classified as Level 3 within the fair value hierarchy. The fair value of the securities are derived using their reported net asset value (NAV) as the primary input, as well as other observable and unobservable inputs as deemed necessary by management. Management has obtained an understanding of the inputs, assumptions, process, and controls used to determine NAV, which is calculated by an independent third party. Unobservable inputs to the NAV calculations include assumptions around premium earnings patterns and loss reserve estimates for the underlying securitized reinsurance contracts in which the Markel CATCo Funds invest. Significant unobservable inputs used in the valuation of these investments include an adjustment to include the fair value of the equity that was issued by one of the Markel CATCo Funds in exchange for notes receivable, rather than cash, which is excluded from NAV. The determination of fair value of the securities also considers external market data, including the trading price relative to its NAV of CATCo Reinsurance Opportunities Fund Ltd. (CROF), a comparable security traded on a market operated by the London Stock Exchange and on the Bermuda Stock Exchange further described in note 16. Generally, the Company's investments in the Markel CATCo Funds are redeemable annually as of January 1^st of each calendar year. However, in years with significant loss events on the underlying securitized reinsurance contracts, as was the case in 2018 and 2017, certain investments may be restricted from redemption for up to three years.

The Company's valuation policies and procedures for Level 3 investments are determined by management. Fair value measurements are analyzed quarterly to ensure the change in fair value from prior periods is reasonable relative to management's understanding of the underlying investments, recent market trends and external market data.

Senior long-term debt and other debt. Senior long-term debt and other debt is carried at amortized cost with the estimated fair value disclosed on the consolidated balance sheets. Senior long-term debt and other debt is classified as Level 2 within the fair value hierarchy due to variations in trading volumes and the lack of quoted market prices. Fair value for senior long-term debt and other debt is generally derived through recent reported trades for identical securities, making adjustments through the reporting date, if necessary, based upon available market observable data including U.S. Treasury securities and implied credit spreads. Significant inputs used to determine the fair value of senior long-term debt and other debt include reported trades, benchmark yields, issuer spreads, bids and offers.

The following tables present the balances of assets measured at fair value on a recurring basis by level within the fair value hierarchy.



	December 31, 2018
(dollars in thousands)	Level 1		Level 2		Level 3		Total
Assets:
Investments:
Fixed maturities, available-for-sale:
U.S. Treasury securities	$	—	$	246,642	$	—	$	246,642
U.S. government-sponsored enterprises	—		359,322		—		359,322
Obligations of states, municipalities and political subdivisions	—		4,352,930		—		4,352,930
Foreign governments	—		1,559,604		—		1,559,604
Commercial mortgage-backed securities	—		1,650,199		—		1,650,199
Residential mortgage-backed securities	—		880,172		—		880,172
Asset-backed securities	—		19,408		—		19,408
Corporate bonds	—		974,911		—		974,911
Total fixed maturities, available-for-sale	—		10,043,188		—		10,043,188
Equity securities:
Insurance, banks and other financial institutions	1,876,811		—		53,728		1,930,539
Industrial, consumer and all other	3,790,406		—		—		3,790,406
Total equity securities	5,667,217		—		53,728		5,720,945
Short-term investments, available-for-sale	981,616		96,080		—		1,077,696
Total investments	$	6,648,833	$	10,139,268	$	53,728	$	16,841,829



	December 31, 2017
(dollars in thousands)	Level 1		Level 2		Level 3		Total
Assets:
Investments available-for-sale:
Fixed maturities:
U.S. Treasury securities	$	—	$	160,613	$	—	$	160,613
U.S. government-sponsored enterprises	—		363,520		—		363,520
Obligations of states, municipalities and political subdivisions	—		4,566,562		—		4,566,562
Foreign governments	—		1,489,228		—		1,489,228
Commercial mortgage-backed securities	—		1,234,326		—		1,234,326
Residential mortgage-backed securities	—		856,168		—		856,168
Asset-backed securities	—		34,728		—		34,728
Corporate bonds	—		1,235,525		—		1,235,525
Total fixed maturities	—		9,940,670		—		9,940,670
Equity securities: ⁽¹⁾
Insurance, banks and other financial institutions	1,934,224		—		168,809		2,103,033
Industrial, consumer and all other	3,864,814		—		—		3,864,814
Total equity securities	5,799,038		—		168,809		5,967,847
Short-term investments	2,065,749		95,225		—		2,160,974
Total investments available-for-sale ⁽¹⁾	$	7,864,787	$	10,035,895	$	168,809	$	18,069,491


⁽¹⁾	Effective January 1, 2018, the Company adopted ASU No. 2016-01 and equity securities are no longer classified as available-for-sale. Prior periods have not been restated to conform to the current presentation. See note 1.

The following table summarizes changes in Level 3 investments measured at fair value on a recurring basis.



(dollars in thousands)	2018			2017
Equity securities, beginning of period	$	168,809		$	191,203
Purchases	28,900			56,250
Sales	(35,335		)	(26,674		)
Net investment losses on Level 3 investments ⁽¹⁾	(108,646		)	(51,970		)
Transfers into Level 3	—			—
Transfers out of Level 3	—			—
Equity securities, end of period	$	53,728		$	168,809


⁽¹⁾	Included in change in fair value of equity securities in the consolidated statements of income (loss) and comprehensive income (loss) for the years ended December 31, 2018 and 2017.

Net investment losses related to the Company's investments in the Markel CATCo Funds primarily resulted from decreases in the NAV of these funds in both 2018 and 2017.

The Company also holds an investment in CROF which is a Level 1 investment included in equity securities on the Company's consolidated balance sheets. CROF is managed by MCIM and invests substantially all of its assets in one of the unconsolidated Markel CATCo Funds. Net investment losses in 2018 also included a loss of $16.0 million related to the Company's investment in CROF. In 2017, the Company’s investment in CROF was considered an available-for-sale security, with changes in fair value included in other comprehensive income. Other comprehensive income for 2017 included a loss of $5.8 million attributable to the Company’s investment in CROF. At December 31, 2018 and 2017, the fair value of the Company's investment in CROF was $4.5 million and $20.5 million, respectively.

There were no transfers into or out of Level 1 and Level 2 during 2018 or 2017.

Except as disclosed in note 2, the Company did not have any assets or liabilities measured at fair value on a non-recurring basis during the years ended December 31, 2018 and 2017.