Lockheed Martin (LMT 0.86%) stock dropped after the defense company's recent results, but is that creating a buying opportunity? After all, the company is involved in multiyear programs with highly reliable customers in an environment of heightened geopolitical tensions. Let's look at the results so you can make an informed decision about the matter. Disappointing earnings The earnings report was not good. I want to highlight three specific points, the first being seen in the table below. While sales growth ...