Mark Zuckerberg's Net Worth Jumped $13 Billion in a Week as Meta Stock Extended Its Rally

Shares of Meta Platforms (META) experienced an 8% rally between August 31 and September 4, adding $13 billion to CEO Mark Zuckerberg's net worth, which rose from $206 billion to $219 billion. The recent rebound comes as Meta addresses investor concerns surrounding its substantial artificial intelligence infrastructure expenditures, projected between $130 billion and $145 billion for 2026. Investor sentiment was buoyed by the release of Muse Spark 1.3, an advanced AI model designed for agentic and coding workflows that rivals top tier models from OpenAI and Anthropic. Additionally, Meta is expanding monetization pathways through its newly announced Meta Compute division and proprietary Iris AI chips developed alongside Broadcom. Despite heavy capex reducing free cash flow in Q2 2026, robust top-line revenue growth of 28% year-over-year to $60.8 billion and an attractive forward price-to-earnings multiple of 20 times highlight continued financial resilience and operational momentum.