NEW YORK (TheStreet) -- Rent-A-Center shares are up 14% to $29.38 in trading on Tuesday.The increase follows the release of the rent to own retailer's positive first quarter earnings report. Must Read: Warren Buffett's 10 Favorite StocksSELL NOW: If you own any of the 900 stocks that TheStreet Quant Ratings has identified as a 'Sell'...you could potentially lose EVERYTHING in the next 6-12 months.