12. Related Party Transactions

The Company’s revenues are derived primarily from investment advisory agreements with related parties. Under these agreements, the Company has licensed to related parties the use of certain of its own indexes for the U.S. and Canadian WisdomTree ETFs and WisdomTree UCITS ETFs. The Board of Trustees and Board of Directors of the related parties are primarily responsible for overseeing the management and affairs of the U.S. and Canadian WisdomTree ETFs, Boost ETPs and WisdomTree UCITS ETFs for the benefit of their shareholders and have contracted with the Company to provide for general management and administration services. The Company is also responsible for certain expenses of the related parties, including the cost of transfer agency, custody, fund administration and accounting, legal, audit, and other non-distribution services, excluding extraordinary expenses, taxes and certain other expenses, which is included in fund management and administration on the Company’s Consolidated Statements of Operations. In exchange, the Company receives fees based on a percentage of the ETF average daily net assets. The advisory agreements may be terminated by the related parties upon notice. Certain officers of the Company also provide general management oversight of the related parties; however, these officers have no material decision making responsibilities and primarily implement the decisions of the Board of Trustees and Board of Directors of the related parties.

The following table summarizes accounts receivable from related parties which are included as a component of Accounts receivable on the Company’s Consolidated Balance Sheets:


	December 31,
	2017		2016
Receivable from WTT	$	19,433	$	16,506
Receivable from BI and WTI		979		645
Receivable from WTCS		97		158
Receivable from WTAMC		87		40

Total	$	20,596	$	17,349

The following table summarizes revenues from advisory services provided to related parties:


	Year Ended December 31,
	2017		2016		2015
Advisory services provided to WTT	$	215,513	$	209,199	$	293,788
Advisory services provided to BI and WTI		10,288		7,251		4,156
Advisory services provided to WTCS		1,508		1,867		—
Advisory services provided to WTAMC		466		148		—

Total	$	227,775	$	218,465	$	297,944

The Company also has investments in certain WisdomTree ETFs of approximately $1,691 and $1,300 at December 31, 2017 and December 31, 2016, respectively. For the years ended December 31, 2017 and 2016, the Company recorded a gain from these investments of approximately $26 and loss of $12, respectively, within other income in the Consolidated Statements of Operations.