Berkshire rises on buyback, leads financials By: MarketWatch September 26, 2011 at 10:01 AM EDT An unexpected buyback announcement for financially oriented conglomerate Berkshire contributes to a positive tone for the sector early Monday. Read More >> Related Stocks: American Express Bank of America Berkshire Hathaway Berkshire Hathaway Deutsche Bank Ag FINANCIAL SEL JPMorgan Chase & Co TravelersCompanies