President Donald Trump took credit for the stock market's record run and complained the media never reports on its rise despite CNBC and other business news outlets having done so perpetually since he won the election.
Stocks had already rallied significantly since Trump's election, as optimism about his proposed policies and improving economic data emboldened market bulls.
Reports of the stock market's rise have been constant, especially during market hours, since Nov. 8. Trump first complained about the lack of coverage on Thursday morning.
"We're doing really well. The fake news media doesn't like talking about the economy. I never see anything about the stock market" setting new records every day, he said.
Trump complained again at a news conference that day, where he formally announced Alexander Acosta as his Labor Secretary nominee.
Trump pointed to new "confidence and optimism" for the stock market's latest record run in a tweet Thursday. The Dow Jones industrial average, S&P 500 and Nasdaq composite all closed at all-time highs for five days straight, entering Thursday's session.
Tweet: Stock market hits new high with longest winning streak in decades. Great level of confidence and optimism - even before tax plan rollout!
Though it has repeatedly recorded highs, the stock market has moved in small increments, never exceeding a one percent gain in either direction during any single trading session over six weeks.
Critics have pointed out that investors could be getting ahead of themselves, since Trump may not be able to get all the reforms he wants from Congress — even though it's controlled by the GOP.
"The market is being very anticipatory of tax reform and the regulatory reform that the president has talked about," Bill Daley, head of U.S. operations at Swiss hedge fund Argentiere Capital, told CNBC's "Squawk Box" on Thursday. "The devil is always in the details. And the time which they'll get that done is probably a lot longer than the market realizes right now."
Dow, S&P and Nasdaq since Nov. 8
—CNBC's Matthew Belvedere contributed to this report.