Bill Gates is now officially the world's richest man. Again.
According to Bloomberg the Microsoft founder recently dethroned the Mexican telecoms billionaire Carlos Slim as the wealthiest man on the planet.
Gates first lost the title to Slim back in 2007.
But Gates still owns 436 million shares in Microsoft, and a recent surge in its stock price - it's now at a five-year high, and up 27 percent this year alone - earned him billions of dollars on paper.
Gates is now worth about $72.1 billion - more than half a billion dollars ahead of Slim.
Slim's wealth has dipped after efforts in the Mexican congress designed to break down the near-monopoly held by his company, America Movil SAB.
Gates would be even richer if it were not for his philanthropic efforts through the Bill & Melinda Gates Foundation and other organisations. According to the Daily Telegraph, Gates has already given away $28 billion, with more than $8 billion going to global health efforts.
And they're not stopping there - Gates has said he eventually wants to give away more than 95% of his family's money to good causes.