Lockheed Martin (LMT.US) Q2 performance falls short of expectations, lowers full-year profit guidance.

According to the Securities Times app, Lockheed Martin (LMT.US) announced lower-than-expected second-quarter earnings on Tuesday and lowered its full-year profit guidance. This is because the world's largest defense contractor incurred a $1.6 billion loss in an aviation project and the Sikorsky helicopter division.