Mr. Musk’s involvement in politics and his financial support for the president’s campaign were once seen by investors as a benefit to Tesla, fueling a steep rise in company shares after the election last year. That association has now turned into a liability. Tesla shares are down 40 percent from their peak in December.

Elon Musk's net worth has taken a $15.3 billion hit after the Tesla CEO announced he was to form a new political party. The news sent ripples through financial markets and spooked investors concerned about Musk's political ambitions and possible implications for Tesla's brand and business operations.

July 7–8, 2025: The first trading day since Musk’s weekend announcement, Tesla shares tumbled, and Musk’s personal fortune dropped by as much as $15 billion, according to the Bloomberg Billionaires Index. As of July 9, it stands at $349 billion with Tesla shares broadly unchanged.

Tesla stock price fell Monday after Musk said he's formed the America Party, the latest development in the billionaire's feud with President Trump.

One analyst called on Tesla's board of directors to act and set "ground rules" for Musk's political involvements.

Tesla shares fell sharply in early trading Monday after CEO Elon Musk said he will launch a new political party.

Elon Musk says he has formed a new political party called the America Party. But it remains unclear what formal steps, if any, he has taken to establish it.

Elon Musk said he would form a new political party called the "America Party." Tesla shares fell around 7% in premarket trading on Monday after Musk's announcement. Tesla shareholders have wanted Musk to stay away from politics,

Elon Musk announced his intention to launch a third party, reigniting his feud with Donald Trump and sending Tesla shares spiraling. Max Chafkin and Mark McKinnon discuss on The Eleventh Hour.