JOINT FILING AGREEMENT
Exhibit
3
In
accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934,
as
amended, each of the undersigned Reporting Persons hereby agrees to the joint
filing, along with all other such Reporting Persons, on behalf of each of them
of a statement on Schedule 13D (including amendments thereto) with respect
to
Common Stock, $0.01 par value of Investment Technology, Inc. (ITG), and that
this Agreement be included as an Exhibit to such joint filing. This
Agreement may be executed in any number of counterparts, all of which taken
together shall constitute one and the same instrument.
IN
WITNESS WHEREOF, each of the undersigned hereby executes this Agreement as
of
this 11th day of June, 2007.
By: X.
X. Xxxx & Co., L.L.C., as
managing
member
By:
/s/ Xxxxxx Xxxxxx
Xxxxxx
Xxxxxx
Managing
Director
D.
E. Shaw Synoptic Portfolios 2, L.L.C.
By: X.
X. Xxxx & Co., L.L.C., as
managing
member
By:
/s/ Xxxxxx Xxxxxx
Xxxxxx
Xxxxxx
Managing
Director
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X.
X. Xxxx & Co., L.L.C.
By:
/s/ Xxxxxx Xxxxxx
Xxxxxx
Xxxxxx
Managing
Director
X.
X. Xxxx & Co., L.P.
By:
/s/ Xxxxxx Xxxxxx
Xxxxxx
Xxxxxx
Managing
Director
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Xxxxx
X. Xxxx
By:
/s/ Xxxxxx Xxxxxx
Xxxxxx
Xxxxxx
Attorney-in-Fact
for Xxxxx X. Xxxx
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