Just a few days after he called out Boeing Co (NYSE:BA) for what he saw as an overpriced Air Force One jumbo jet, he put the white-hot spotlight on Lockheed Martin Corporation (NYSE:LMT) - via Twitter - for cost-overruns with its F-35 fighter jets.
In after-hours trading following Trump's tweet, Lockheed shares fell 2 percent and Boeing's rose 0.7 percent.
The U.S. military has said the F-35 serves a wide range of roles, different than those of the F/A-18.
With a current development and acquisition price tag of United States dollars 379 billion for a total of 2,443 F-35 aircraft - a lot of them destined for the Air Force - the Lockheed Martin-built plane is the most expensive in history, and costs are set to go higher still.
"Even though President-elect Trump has asked Boeing to price up a comparable airplane, there really isn't one", Ferguson continued.
Still, Trump's dissatisfaction with the program, which has been dogged by problems while costs have reached an estimated $379bn, is a clear risk for Lockheed.
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The two jets have faced off to win contracts for overseas governments, with the F-35 prevailing in a lot of them. Last year, it generated 20% of the company's total consolidated net sales of $46.1 billion. After the meeting, Lockheed Martin CEO Marillyn Hewson said she "appreciated the opportunity to discuss the importance of the F-35 program and the progress we've made in bringing the costs down".
The Pentagon did not immediately respond to a request for comment.
"We have committed to working with the president-elect and his administration to provide the best capability, deliverability and affordability across all Boeing products and services to meet our national security needs", Boeing said in a statement. The comment hurt the stock of Boeing, but after a meeting between the CEO and Trump, the deal was reinstated, though Boeing claimed to be producing the plane at a cheaper price.
Trump's jockeying for leverage via his Twitter account is likely to be a hurdle for all United States defense contractors, Roman Schweizer, aerospace and defense analyst at Cowen & Co, wrote in a client note on Thursday.
On Wednesday, Trump met the chief executives of Lockheed and Boeing at his resort in Palm Beach, Florida. The program is also running about four years behind schedule.