In the current session, the stock is trading at $338.63, after a 0.38% increase. Over the past month, General Dynamics Inc. (NYSE:GD) stock increased by 0.06%, and in the past year, by 28.41%. With performance like this, long-term shareholders are optimistic but others are more likely to look into the price-to-earnings ratio to see if the stock might be overvalued.A Look at General Dynamics P/E Relative to Its CompetitorsThe P/E ratio measures the current share price to the company's EPS. It is used by long ...