Key Takeaways LMT's shares fell 6% as labor shortages and program losses weigh on results. New hypersonics and simulation investments bolster LMT's long-term growth prospects.Major contract wins lifted Lockheed Martin's backlog to $179.1 billion.Lockheed Martin’s (LMT) shares have lost 6% over the past six months, underperforming the Zacks Aerospace-Defense industry’s growth of 3.3%. The company is under pressure from shortage of skilled labor while also absorbing major losses across multiple fixed-price an ...