Gautam Adani became the richest Asian billionaire in history (in sheer dollar terms) earlier this month–and he’s kept on climbing.

Adani has now passed Warren Buffett to become the 5th richest person in the world.

59 year old Adani has a net worth of  $123.7 billion, as of Friday’s market close, edging out the $121.7  billion fortune of Buffett, who is 91.

Adani is the founder and chairman of Adani Group, a port and energy conglomerate with six publicly traded companies in India.

Shares of each of those businesses are up by between 19% and 195% this  year, as Adani has led aggressive expansion into renewable energy,  media, airports and more.

Earlier this month, Abu Dhabi’s International Holding Co., run by the brother of the United Arab Emirates’ crown prince, invested $2 billion in three of Adani’s green energy-focused firms.

On Friday, Adani agreed to buy Ocean Sparkle, India’s largest marine services company, in a $220 million deal.