Stocks to watch Wednesday: Toll Brothers, Calpine By: MarketWatch August 24, 2011 at 06:32 AM EDT Stock buybacks for Calpine and Ecolab are among the corporate headlines for investors to consider Wednesday. Read More >> Related Stocks: American Eagle Outfitters Applied Materials Avago Technologies Ecolab Express Inc GUESS Heico Corp Surmodics Inc Toll Brothers Inc