Elon Musk’s net worth rose by $53.0 billion in 2026 to reach $672 billion, driven largely by the $1.25 trillion merger valuation of SpaceX and xAI alongside his Tesla holdings. This growth bucks the broader trend of a combined $45.6 billion decline among the world’s other top billionaires this year.

Based on current market capitalizations that exclude debt, Musk’s $672 billion wealth surpasses the combined $531 billion value of Rivian ($20B), Ford ($55B), GM ($74B) and Toyota ($382B). That leaves a $141 billion buffer beyond the automotive group’s aggregate worth, underscoring the scale gap between Musk’s assets and major carmakers.