WisdomTree (WT) 10-K 2017 FY Annual report

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of WisdomTree Investments, Inc. (the “Company”) on Form10-K for the period ended December 31, 2017 as filed with the Securities and Exchange Commission (the “SEC”) on the date hereof (the “Report”), we, Jonathan L. Steinberg, Chief Executive Officer of the Company, and Amit Muni, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to our knowledge, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

This certification is being furnished and not filed, and shall not be incorporated into any documents for any purpose, under the Securities Exchange Act of 1934, as amended. A signed original of this written statement require by Section 906 has been provided to the Company and will be retained by the Company and furnished to the SEC or its staff upon request.

By:	/s/ Jonathan Steinberg
	Jonathan Steinberg
	Chief Executive Officer (Principal Executive Officer)

By:	/s/ Amit Muni
	Amit Muni
	Chief Financial Officer (Principal Financial Officer)

March 1, 2018