Among the stock activity stories for Friday, Oct. 30, from AP Financial News:
CHICAGO (AP) -- Shares of Denny's Corp. sank a day after the restaurant chain posted worst-than-expected sales.
NEW YORK (AP) -- Shares of Citigroup Inc. fell after a CLSA analyst issued a note forecasting the bank would write down as much as $10 billion in its fourth quarter.
NEW YORK (AP) -- Shares of Varian Semiconductor Equipment Associates Inc. retreated, though the company posted solid fiscal fourth-quarter results and a better-than-expected outlook.
NEW YORK (AP) -- Shares of Zale Corp. fell after the company said it is being investigated by the Securities and Exchange Commission.
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