CEO Tenure, Stock Gains Often Go Hand-in-Hand

"Even as the average chief executive's tenure shrinks, a cadre of CEOs is beating the odds for corner-office stays. Nearly all run companies that have outperformed the stock market for years. Excluding founders, 28 CEOs of companies in the Standard & Poor's 500 stock index have held office more than 15 years, according to an analysis by recruiters Spencer Stuart for The Wall Street Journal. The typical S&P 500 CEO has held the title about 6.6 years."