text: Vornado Buys 4.3 Pct. Stake, Shares Soar (Reuters) Reuters - Shares of Sears, Roebuck and Co. were\up about 20 percent on Friday after real estate company Vornado\Realty Trust said it raised its stake in the retailer, a step\that could mean Sears plans to convert some of its real estate\assets into cash.