Meta Platforms (NASDAQ:META) stock has retreated this year, making it the worst-performing member of the Magnificent Seven.

The stock has fallen to $566, down nearly 30% from its 2025 high.

As a result, Mark Zuckerberg's net worth has declined by approximately $31 billion.

Mark Zuckerberg's Net Worth Has Plunged This Year In a year in which many billionaires are adding billions of dollars to their net worth, Zuckerberg has become one of the worst performers.

Bloomberg data shows that his wealth has dropped by $31 billion, bringing his net worth to $202 billion.