Lockheed Martin Corp (NYSE:LMT) has been a solid player in the aerospace and defense sector. But in the last two years, its stock hasn’t really gone anywhere, hovering around $465. That raises a big question: Is it still a good buy?Are you looking for signals & alerts from pro-traders? Sign-up to Invezz Signals™ for FREE. Takes 2 mins.With a market value topping $110 billion, there’s no doubt that Lockheed Martin is a defense giant. They make all sorts of important military stuff, from cutting-edge aircraft ...