Investments

At March 31, 2018 and December 31, 2017, the Company's investments were as follows:



	March 31, 2018		December 31, 2017
($ in thousands)
Marketable securities	$	62,039	$	66,424
Equity method investments	12,420		11,098
Nonqualified retirement plan assets	6,669		6,706
Investments in collateralized loan obligations	43,295		23,339
Other investments	925		925
Total investments	$	125,348	$	108,492

Marketable Securities

Marketable securities consist primarily of investments in the Company's sponsored mutual funds, excluding the investments in consolidated investment products discussed in Note 15. The composition of the Company’s marketable securities is summarized as follows:

March 31, 2018



	Cost		Unrealized Loss			Unrealized Gain		Fair Value
($ in thousands)
Marketable securities:
Sponsored funds	$	41,463	$	(928	)	$	1,380	$	41,915
Equity securities	13,621		(11		)	2,939		16,549
Sponsored closed-end funds	3,770		(382		)	187		3,575
Total marketable securities	$	58,854	$	(1,321	)	$	4,506	$	62,039

December 31, 2017



	Cost		Unrealized Loss			Unrealized Gain		Fair Value
($ in thousands)
Marketable securities:
Sponsored funds	$	47,084	$	(1,294	)	$	1,059	$	46,849
Equity securities	13,141		(2		)	2,671		15,810
Sponsored closed-end funds	3,761		(302		)	306		3,765
Total marketable securities	$	63,986	$	(1,598	)	$	4,036	$	66,424

For the three months ended March 31, 2018, the Company recognized a net realized loss of $0.4 million on marketable securities. For the three months ended March 31, 2017, the Company recognized a net realized gain of $0.6 million on marketable securities.