Every investor would naturally like to see the stocks that make up their portfolio show a consistent upward curve, but that, as everyone learns eventually, is just not the way it works. Peaks and troughs are part of the investing game, and even the stock market kings go through periods of serous pullbacks for one reason or another, be it macro developments or some news item that spooked investors. And every so often, despite sound fundamentals, the pendulum swings too far into negative terrain,