Reports say that from Thursday, August 20 to Friday, August 21, Nigerian billionaire, Aliko Dangote, made a profit of $79.2m (N15.6bn).
He was one of six billionaires who saw their fortunes increase in 24 hours to Friday.
The other three Africans on the Index are South Africans: Nicky Oppenheimer formerly of the De Beers diamond company (net worth $6.7bn) suffered a $27.9m loss between Thursday and Friday; luxury goods magnate Johann Rupert (net worth $7bn) saw his money shrink by $87m, and retailing baron Christo Wiese (net worth $7bn), lost $220m over the same period.
The weekly drop for the Bloomberg Billionaires Index, a group that includes Warren Buffett, Bill Gates and Mark Zuckerberg, was the biggest since tracking of the expanded list began in September 2014.
The Bloomberg Billionaires Index takes measure of the world’s wealthiest people based on market and economic changes and Bloomberg News reporting. Each net-worth figure is updated every business day at 5:30 p.m. in New York and listed in US dollars.