How's your summer going? Probably not as good as Mark Zuckerberg's.

The Facebook CEO and cofounder's wealth has spiked in recent months as the company's stock price continues to reach new highs. On Thursday, he reached another milestone: With a fortune worth $33.3 billion, he's now worth more than Google cofounders Larry Page and Sergey Brin, according to Blooomberg's Billionaires Index. Page is worth $33.2 billion. Brin's fortune is estimated at $32.9 billion.

At No. 16 on the list, Zuckerberg is also wealthier than No. 20, Amazon CEO and founder Jeff Bezos.

Where can Zuck go from there? According to Business Insider, if Facebook stock shoots up to $200, then he will become the richest man in the world, unseating Bill Gates or Carlos Slim.

At this writing, the stock was trading at around $75.