Jensen Huang

No one on this list made their fortune faster than Jensen Huang. NVIDIA's grip on the chips that train AI models pushed its market cap past $3 trillion in 2024, and Huang's 3.5% stake rode along with it, from around $20 billion to more than $110 billion in under three years. That's not gradual wealth-building, the way Buffett's or Gates's fortunes were made; it's what happens when the market decides overnight that your factory makes the one thing everyone suddenly needs.