**Stocks to Watch Thursday: Tesla, Apple, Lockheed Martin**
U.S. stock futures are trading higher Thursday morning as investors focus on several key companies. Lockheed Martin is expected to report quarterly earnings of $5.74 per share on revenue of $19.85 billion before the market opens. Its shares declined slightly by 0.2% to $596.16 in after-hours trading. Tesla reported stronger-than-expected …