The following three defense stocks are to be combined into a stock index in January 2010 (perhaps a portfolio manager believes these stocks are an appropriate benchmark for his or her performance): Suppose that Douglas McDonnell shareholders approve a 3-for-1 stock split on January 1, 2011. Price Shares (millions) 1/1/10 1/1/11 1/1/12 Douglas McDonnell 355 $ 86 $ 91