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  •  Dow Up0.15% Nasdaq Up0.36%
    Upgrades & Downgrades History
    DateResearch FirmActionFromTo
    15-Jul-14H.C. WainwrightInitiatedBuy
    29-Apr-14RBC Capital MktsUpgradeUnderperformSector Perform
    5-Sep-08Roth CapitalInitiatedBuy
    18-Apr-08Piper JaffrayInitiatedBuy
    6-Mar-08Canaccord AdamsInitiatedBuy
    19-Dec-07Cowen & CoInitiatedOutperform

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