According to the Bloomberg Billionaires Index, Mark Zuckerberg's net worth rose $8.37 billion in one day to $263 billion, while Nikolay Storonsky's rose $9.30 billion, a 45% jump described as his biggest one-day gain on record, to $29.7 billion. Zuckerberg's gain followed Meta's launch of two AI models, Muse Wonder and Muse Wonder Full, and Meta closed Monday at $742.96, up 3.38% on the day. Storonsky's gain relates to a $115 billion valuation of Revolut, his private company, which had been reported since July through a secondary share sale; the article suggests the index likely updated its estimate after the market closed on Monday. The piece stresses that all net worth figures are third-party estimates, and that for private companies a large one-day jump often reflects a change in how the index values the company rather than a change in market prices.
Summary written by Upside AI from the original article. Read the source for full details.
Read the original on Yahoo Finance ↗
Related tickers and likely impact
META
▲ Likely positiveMeta Platforms
Relevance: low
| Market | US stocks |
|---|---|
| Sector | Communication Services |
| Industry | Interactive Media & Services |
| Market cap | $1.8T |
| Close on 10/12/2026 | 742.96 |
| Change that session | +3.38% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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