POWER OF ATTORNEY

The  undersigned,  Brian G. Cartwright, does hereby make, constitute and appoint
Steven Vigliotti, Angelo Bulone, Angelique DeSanto, Peter Tucker, Robert Wollin,
and  Eric  Days,  and each of them, true and lawful attorneys-in-fact and agents
with  full  power of substitution and resubstitution, in any and all capacities,
to execute for and on behalf of the undersigned the reports and filings required
under  Section  16  of  the  Securities  Exchange  Act  of 1934, as amended (the
"Exchange   Act"),  and  the  rules  promulgated  thereunder  (the  "Section  16
Reports"),  in connection with transactions by, and beneficial ownership of, the
undersigned  in  securities  issued  by  Investment  Technology Group, Inc. (the
"Company"),  and  the  Form 144 required under Rule 144 of the Securities Act of
1933,  as  amended  (the  "Securities Act"), in connection with any sales by the
undersigned  of  securities  issued  by the Company, and any other documents and
instruments   incidental   to   any   of   the  foregoing,  granting  unto  said
attorneys-in-fact  and  agents, and each of them, full power and authority to do
and perform each and every act and thing that said attorneys-in-fact and agents,
and  each  of them, deem advisable or necessary, including filing the Section 16
Reports,  the Forms 144, and amendments thereto with the Securities and Exchange
Commission,  and  the  undersigned does hereby fully ratify and confirm all that
said  attorneys-in-fact  and  agents,  or  any  of  them, or their or his or her
substitute or substitutes, shall do or cause to be done by virtue hereof.

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 Exchange Act or Rule 144 of the Securities Act.

This  Power  of  Attorney  shall  remain  in  full  force  and  effect until the
undersigned  is  no  longer  required  to  file  the Forms 144 or the Section 16
Reports  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.

IN  WITNESS  WHEREOF,  the undersigned has subscribed his name, this 14th day of
January, 2016.

/s/ Brian G. Cartwright
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Brian G. Cartwright