"They've been under incredible stress for five months, give them a break," Errol Musk said while attending a forum by Putin's ultranationalist ally in Moscow.

Could Musk be fired? Will he get his pay package approved? Will Tesla be punished? Shareholders are in for a bumpy ride as the Trump bromance ends.

Tesla shares recouped some losses that had been triggered by a spat between CEO Elon Musk and U.S. President Donald Trump, even though a truce appeared uncertain on Friday as a White House official said the president was not keen on talking to his former ally.