Who will succeed Warren Buffett as chief executive officer of Berkshire Hathaway Inc.?
It's one of the most guarded secrets in the business world.
That didn't stop JPMorgan Chase & Co.'s new Berkshire analyst from placing odds on one man.
"The most likely successor in our view, who Warren Buffett regularly praises, is Greg Abel," JPMorgan's Sarah DeWitt said in a note released Thursday, initiating coverage of the company.
Don't count Buffett out yet, though.