fifteen-year cumulative stock returns at or below the general stock market, punctuated by a transition point, then cumulative returns at least three times the market over the next fifteen years. We picked fifteen years because it would transcend one-hit wonders and lucky breaks (you can’t just be lucky for fifteen years) and would exceed the average tenure of most chief executive officers (helping us to separate great companies from companies that just happened to have a single great leader). We
