It’s the end of an era. The turn of the year marks the day Warren Buffett officially hands over the reins of CEO of Berkshire Hathaway (NYSE: BRK.A) to his successor, Greg Abel. The Oracle of Omaha had led the company for 60 years, delivering a market value per share growth of 19.9% per year versus the S&P 500’s annual total return of 10.4% per year. This difference may not look significant at first glance.But stretch it over six decades and Buffett’s track record blows the index’s returns out of the water. ...