Like a cruise missile veering off course, shares of aerospace and defense giant Lockheed Martin (LMT -2.15%) have fizzled rather than soared in 2025. Muted profit guidance and market concerns toward the Trump administration's defense spending policies have emerged as recent headwinds for the stock, which is currently down about 25% from its 52-week high.Yet, investors might be making a mistake losing a lock on this industry leader, supported by solid fundamentals and plenty of firepower to right its course. ...