Why Earnings Synergies With Chubb Could Boost ACE By 50% By: Benzinga via Benzinga July 31, 2015 at 09:34 AM EDT In a report published Friday, Bernstein analyst Josh Stirling upgraded the ratings on ACE Limited (NYSE: ACE) and Chubb Corp (NYSE: CB) ... Read More >> Related Stocks: Chubb Corp Chubb Limited