The biggest U.S. gasoline price surge in years is running out of steam just in time for the start of the summer driving season.Energyread more
Stocks rose on Friday, but notched weekly losses as investors worried the U.S.-China trade war is hurting economic growth.US Marketsread more
The combination of mounting recession fears, bets on a more cautious Fed and a regular uptick in market volatility could spell more losses.Marketsread more
The therapy, Zolgensma, is a one-time treatment for spinal muscular atrophy — a muscle-wasting disease and leading genetic cause of infant mortality, affecting 1 in every...Biotech and Pharmaceuticalsread more
SpaceX has raised just over $1 billion in financing since the beginning of the year.Investing in Spaceread more
An analyst for Ark Invest, which has a major investment in Tesla, says recent drastic price-target cuts by others on Wall Street are missing the big picture.Investingread more
A federal judge in California has blocked President Donald Trump from building sections of his long-sought border wall with money secured under his declaration of a national...Politicsread more
Former Foreign Minister Boris Johnson is seen as the bookmaker's favorite to succeed outgoing Prime Minister Theresa May.Europe Politicsread more
The race is underway to find a vaccine that can control African swine fever, a highly contagious and deadly viral infection ravaging China's hog population. There is currently...Agricultureread more
Apple bought Tueo Health, which was developing tech to help parents monitor asthma symptoms in children, using a mobile app and commercial breathing sensors.Technologyread more
Call him "P.T. Musk," Cramer said on "Squawk Box. "
"I just keep finding it's a three-ring circus with the guy. It's kind of annoying but he's exciting," added Cramer. "He's P.T. Barnum. P.T. Barnum packed the seats."
Barnum's exploits in the mid-to-late 1800s, as the master promoter of what became the Ringling Bros. and Barnum & Bailey Circus, were fictionalized in the 2017 blockbuster "The Greatest Showman," starring Hugh Jackman. Barnum was also remembered for hoaxes and pranks.
Tesla did not immediately respond to CNBC's request for comment about the comparison.
Cramer's remarks came as Musk's most recent proclamations are being put under the microscope.
On Monday, in Palo Alto, California, Musk told an audience at an autonomous-driving showcase that some 1 million of the automaker's robotaxis, with no human drivers, would hit U.S. markets next year. Musk said he was confident in his prediction. However, his forecasts have missed the mark in the past.
Cramer said Musk and Tesla's claims, in particular that its new data chips can potentially perform seven times better than a competing product from Nvidia, put the CEO's "credibility" into question. Nvidia later said in a statement that Tesla misstated details about its chips.
Cramer, host of "Mad Money, " has been critical of Musk ever since the CEO's take-private tweet on Aug. 7 stunned the financial community and Washington regulators. Musk eventually abandoned the idea on Aug. 24. At the time, Cramer said Musk's "stunts" were ill-advised, and recommend the board put Musk on medical leave. Cramer later contended that Musk should be removed as CEO of the company.
Last week, Musk and the Securities and Exchange Commission asked for a one-week delay to resolve their latest dispute, stemming from last year's settlement over that take-private tweet.