How Trump's Tweets Seem to Be Affecting Stocks and CEOs

The power of a president-elect's tweet is not to be underestimated.

Trump also appears to have embraced the power of the tweet as his latest negotiation tactic.

It also led to a phone conversation between Trump and the company’s CEO Dennis Muilenburg.

“Muilenburg congratulated Mr. Trump on his election win and committed to working with the new administration to control costs as they establish requirements for the new Air Force One to keep the program as affordable as possible and deliver the best value to American taxpayers,” Boeing said in a statement released this morning.

On Tuesday, shares of Sprint jumped after Trump announced that Japan's SoftBank had committed to investing $50 billion in the United States, which could lead to 50,000 new jobs in the country. SoftBank has a majority ownership in Sprint.

Mark Zandi, the chief economist for Moody's Analytics, told ABC News that it should be expected that the markets would respond to Trump's tweets because "investors think words matter."

"I think when the president-elect names names, when he points out specific companies, it's not at all surprising that their stock prices respond to that," Zandi said.

Investors have pushed stocks to record highs after Trump's surprise victory, but Zandi said investors should brace for turbulence.

"I can't recall another president singling out companies for public comment -- certainly not on a regular basis -- but he seems to be willing to do that on an almost daily basis," he noted. "If his words have consequences and he acts on it, then investors are going to respond and I’d buckle in. There's going to be a lot of volatility in markets."

"There was a cost as we thought about keeping the Indiana plant open. At the same time... I was born at night but not last night. I also know that about 10 percent of our revenue comes from the U.S. government," Hayes told CNBC.