Warren Buffett’s investing success depends on these two traits: Portfolio manager

Warren Buffett’s investing success depends on these two traits: Portfolio manager

Billionaire investing legend Warren Buffett will hold court for hours at the Berkshire Hathaway (BRK-A, BRK-B) shareholder meeting streamed live on Yahoo Finance on Saturday, answering dozens of questions from attendees watching virtually around the world. 

Some of those questions will likely boil down to the same query: How do I invest as well as you do? 

In a new interview, Robert Hagstrom “” portfolio manager and author of many books on Buffett, including "Warren Buffett: Inside the Ultimate Money Mind" “” says Buffett's investing success owes to his possession of two inextricably linked attributes: philosophy and method.