JOINT FILING AGREEMENT
EXHIBIT
99.1
The undersigned hereby agree that the
Statement on Schedule 13G/A filed herewith (and any amendments thereto),
relating to the Common Stock, $0.01 par value, of Ciena Corporation, a
Delaware corporation, is being
filed jointly with the Securities and Exchange Commission pursuant to Rule
13d-1(c) under the Securities Exchange Act of 1934, as amended, on behalf of
each of the undersigned.
This Agreement may be executed in
counterparts and each of such counterparts taken together shall constitute one
and the same instrument.
Dated this 16th day of February,
2010.
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CITADEL HOLDINGS II
LP
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By:
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Citadel Holdings II
LP,
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By:
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Citadel Investment Group II,
L.L.C.,
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its Managing
Member
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its General
Partner
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By:
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Citadel Investment Group II,
L.L.C.,
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By:
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/s/ Xxxx X.
Xxxxx
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its General
Partner
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Xxxx X. Xxxxx, Authorized
Signatory
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By:
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/s/ Xxxx X.
Xxxxx
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Xxxx X. Xxxxx, Authorized
Signatory
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CITADEL DERIVATIVES TRADING
LTD.
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CITADEL EQUITY FUND
LTD.
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By:
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By:
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its Portfolio
Manager
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its Investment
Manager
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By:
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Citadel Holdings II
LP,
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By:
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Citadel Holdings II
LP,
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its Managing
Member
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its Managing
Member
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By:
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Citadel Investment Group II,
L.L.C.,
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By:
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Citadel Investment Group II,
L.L.C.,
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its General
Partner
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its General
Partner
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By:
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/s/ Xxxx X.
Xxxxx
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By:
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/s/ Xxxx X.
Xxxxx
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Xxxx X. Xxxxx, Authorized
Signatory
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Xxxx X. Xxxxx, Authorized
Signatory
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CITADEL SECURITIES
LLC
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CITADEL HOLDINGS I
LP
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By:
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Citadel Holdings I
LP,
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By:
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Citadel Investment Group II,
L.L.C.,
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its Non-Member
Manager
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its General
Partner
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By:
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Citadel Investment Group II,
L.L.C.,
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By:
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/s/ Xxxx X.
Xxxxx
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its General
Partner
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Xxxx X. Xxxxx, Authorized
Signatory
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By:
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/s/ Xxxx X.
Xxxxx
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Xxxx X. Xxxxx, Authorized
Signatory
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CITADEL INVESTMENT GROUP II,
L.L.C.
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XXXXXXX XXXXXXX
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By:
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/s/ Xxxx X.
Xxxxx
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By:
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/s/ Xxxx X.
Xxxxx
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Xxxx X. Xxxxx, Authorized
Signatory
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Xxxx X. Xxxxx,
attorney-in-fact*
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* Xxxx X. Xxxxx
is signing on behalf of Xxxxxxx Xxxxxxx as attorney-in-fact pursuant to a power
of attorney previously filed with the Securities and Exchange Commission on
February 24, 2006, and hereby incorporated by reference herein. The power of
attorney was filed as an attachment to a filing by Citadel Limited Partnership
on Schedule 13G for Morgans Hotel Group Co.
