If you are wondering whether Johnson & Johnson at around US$226.71 is still a strong long term holding or starting to look stretched, the answer starts with understanding what you are really paying for today. The stock is up 2.4% over the past week, down 3.2% over the past month, and sits on a 9.3% year to date return, with a 54.0% one year return, 56.0% over three years, and 52.7% over five years. This gives you a wide range of recent price behaviour to put under the microscope. Recent...