Elon Musk’s fortune slumped by $16.1 billion after Tesla Inc.’s weak third-quarter earnings weighed on shares.

Musk, who is the richest person on the planet with a fortune of $209.6 billion, owns 13% of Tesla and derives the majority of his wealth from the auto company. Tesla’s shares fell by 9.3% after it missed both earnings and sales expectations for the quarter.

Tesla shares dropped more than 15 percent over the last week, with CEO Elon Musk griping over everything from rising interest rates to the company’s own Cybertruck during a third-quarter earnings call.

Things got so grim, in fact, that Tesla investor and financial analyst Kevin Paffrath took aim at the mercurial CEO in a recent interview, calling the call “terrible” and accusing Musk of “turning into a little baby’

Elon Musk has been accused of acting like “a little baby” and being “almost in tears” during an earnings call in which the billionaire struck a pessimistic tone about the economy.

“For a leader to cry about the economy rather than funneling that and coming up with a plan is pathetic,” Mr Paffrath, who owns Tesla stock, told

He added, ‘We need to know the light is at the end of the tunnel rather than hearing a complaining CEO who’s not actually providing that path’

Tesla reported weaker-than-expected third-quarter results, with both earnings per share and revenue of $23.35bn falling short of analysts’ estimates.