Two additional points. First, Berkshire stock has benefited from everyone's believing that Mr. Buffett is the world's greatest investor (whether he is or not). Thus, his stock has a much higher P/E ratio than comparable companies and the rise of this P/E ratio has enhanced the stock returns mentioned above. Point two, I believe a major securities firm did an analysis of Buffett's investment returns a few years ago and found that he hadn't outperformed the index in 10-20 years.