JOINT FILING AGREEMENT
EXHIBIT 99.1
The undersigned hereby agree that the Statement on Schedule 13G filed herewith (and any amendments thereto), relating to the Common Stock 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 19th day of March, 2013.
| CITADEL ADVISORS LLC | CITADEL ADVISORS HOLDINGS LP | ||||
| By: | Citadel Advisors Holdings LP, | By: | Citadel Investment Group II, L.L.C., | ||
| its Managing Member | its General Partner | ||||
| By: | Citadel Investment Group II, L.L.C., | By: | /s/ Xxxx Xxxxxxxx | ||
| its General Partner | Xxxx Xxxxxxxx, Authorized Signatory | ||||
| By: | /s/ Xxxx Xxxxxxxx | ||||
| Xxxx Xxxxxxxx, Authorized Signatory | |||||
| CITADEL INVESTMENT GROUP II, L.L.C. | XXXXXXX XXXXXXX | ||||
| By: | /s/ Xxxx Xxxxxxxx | By: | /s/ Xxxx Xxxxxxxx | ||
| Xxxx Xxxxxxxx, Authorized Signatory | Xxxx Xxxxxxxx, attorney-in-fact* | ||||
| * | Xxxx Xxxxxxxx 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 January 18, 2013, and hereby incorporated by reference herein. The power of attorney was filed as an attachment to a filing by Citadel Advisors LLC on Schedule 13G for TiVo Inc. |
