Deep Tide TechFlow news, Nov. 6: According to the Forbes Real-Time Billionaires List, as of the close of U.S. markets on Nov. 5 local time, Elon Musk’s personal fortune was approximately $789.5 billion, down $79.3 billion in a single day.

The Bloomberg Billionaires Index puts his personal fortune at approximately $785 billion, down $79.7 billion in a single day.

Tesla shares fell 10.77% that day, while SpaceX shares fell 9.05%.