Exhibit 24
POWER OF ATTORNEY 
        Know all by these presents, that the undersigned hereby constitutes and appoints each of 
Peter M. Ziemba, Sarah English and Amit Muni, signing singly, the undersigned's true and lawful 
attorney-in-fact to: 
(1)  execute for and on behalf of the undersigned, in the undersigned's capacity as an officer 
and/or director of WisdomTree Investments, Inc. (the "Company"), Forms 3, 4 and 5 and 
amendments thereto in accordance with Section 16(a) of the Securities Exchange Act of 1934 and 
the rules thereunder;
(2)  do and perform any and all acts for and on behalf of the undersigned which may be necessary 
or desirable to complete and execute any such Form 3, 4 or 5 and amendments thereto and timely 
file such  form with the United States Securities and Exchange Commission and any stock 
exchange or similar authority; and
(3)  take any other action of any type whatsoever in connection with the foregoing which, in the 
opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required 
by, the undersigned, it being understood that the documents executed by such attorney-in-fact on 
behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall 
contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's 
discretion.
        The undersigned hereby grants to each such attorney-in-fact full power and authority to do 
and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in 
the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as 
the undersigned might or could do if personally present, with full power of substitution or 
revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-
fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of 
Attorney and the rights and powers herein granted. The undersigned acknowledges that the 
foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not 
assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with 
Section 16 of the Securities Exchange Act of 1934. 
        This Power of Attorney shall remain in full force and effect until the undersigned is no 
longer required to file Forms 3, 4 and 5 with respect to the undersigned's holdings of and 
transactions in securities issued by the Company, unless earlier revoked by the undersigned in a 
signed writing delivered to the foregoing attorneys-in-fact.  This Power of Attorney may be filed 
with the United States Securities and Exchange Commission as a confirming statement of the 
authority granted herein.
        IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be 
executed as of July 22, 2011. 
RRE VENTURES III-A, L.P.
By: RRE VENTURES GP III, LLC, General Partner
By:  Andrew Zalasin, General Partner 
Signature