It’s been one of the most lucrative weeks in history for some of the world’s wealthiest people.

The net worth of Amazon.com Inc. founder Jeff Bezos topped the once-unfathomable amount of $200 billion. Entrepreneur, inventor, provocateur Elon Musk added the title of centibillionaire when his fortune soared past $100 billion fueled by Tesla Inc.’s ceaseless rally. And by Friday, the world’s 500 wealthiest people were $209 billion richer than a week ago.

Musk’s surging wealth expanded the rarefied club of centibillionaires to four members. Facebook Inc. co-founder Mark Zuckerberg, the world’s third-richest person, joined Bezos and Bill Gates among the ranks of those possessing 12-figure fortunes earlier this month. Together, their wealth totals $540 billion, according to the Bloomberg Billionaires Index.