Stocks to watch Monday: SemGroup, Ball, B&G By: MarketWatch October 31, 2011 at 05:44 AM EDT Acquisitions figure prominently in the early corporate headlines Monday. Read More >> Related Stocks: Allstate Corp Anadarko Petroleum Armstrong World Industries Inc B&G Foods Holdings Ball Corp CNA Financial Corp Cooper Tire & Rubber Company Ecolab FMC Corp Macy's Mercury General Corp Plains All American Pipeline LP RBC Bearings Inc Semgroup Corp Triumph Group Unilever NV Unilever Plc ADR