Musk's wealth shrinks nearly $80 billion in a single day.

TechFlow reported on Nov. 6 that, according to Forbes' real-time billionaire list, as of the US market close on Nov. 5 local time, Musk's personal wealth was approximately $789.5 billion, down $79.3 billion for the day.

The Bloomberg Billionaires Index showed his personal wealth at approximately $785 billion, down $79.7 billion for the day.

Tesla stock closed down 10.77%, while SpaceX stock fell 9.05%.