Bernard Arnault, the chief executive of luxury brand Louis Vuitton's parent company LVMH, and his family briefly took the title as the world's richest, but were back at No. 2 with a personal wealth of $185.3bn, according to Forbes.
Tesla shares, which have lost more than 47% in value since Musk made his offer to buy Twitter earlier this year, were down 2.7%.
We have summarized this news so that you can read it quickly. If you are interested in the news, you can read the full text here. Read more: