Cecile Vannucci Bloomberg

For all the talk of a big-money exodus from New York, the city's residents still have more wealth - in excess of $3 trillion - than those of any other metro in the world.

Gautam Adani, whose empire includes ports, mines and green energy, is the latest whose fortune reached the $100 billion mark.

Mukesh Ambani has had a rollercoaster 2020, cutting a string of deals for his digital business, undergoing wild swings in his wealth and having his brother's finances laid bare for the world to see. Now he can add another chapter -- eclipsing the fortune of Warren Buffett.

For all the talk of a big-money exodus from New York, the city's residents still have more wealth - in excess of $3 trillion - than those of any other metro in the world.

Gautam Adani, whose empire includes ports, mines and green energy, is the latest whose fortune reached the $100 billion mark.

Mukesh Ambani has had a rollercoaster 2020, cutting a string of deals for his digital business, undergoing wild swings in his wealth and having his brother's finances laid bare for the world to see. Now he can add another chapter -- eclipsing the fortune of Warren Buffett.