On June 12th, the successful listing of SpaceX propelled Elon Musk, through his shareholdings, to become the world's first trillionaire. Traders on prediction markets now believe Mark Zuckerberg is the most likely candidate to become the next trillionaire, although this remains a low-probability event.

On the prediction market platform Kalshi, speculators have assigned a 32% probability to the Meta Platforms, Inc. CEO becoming the world's second trillionaire. According to Forbes estimates, Zuckerberg's current net worth is slightly under $200 billion, a figure Kalshi uses to determine the final settlement of the contract as "yes" or "no." This implies his net worth would need to quadruple to attain that title.

The contract related to this question on Kalshi expires in 2033, meaning it will automatically close if the listed individual has not become the second trillionaire by that time. Currently, trading volume for this event contract on Kalshi is low, with transaction value just over $7,500.

Traders on the platform have given the second-highest probability, at 21%, to NVIDIA CEO Jensen Huang reaching a 13-figure (i.e., trillion-dollar) net worth. According to Forbes, his current net worth is slightly above $180 billion.

Beyond these two individuals, no one else is considered to have a probability exceeding 10%. Dell Technologies Inc. CEO Michael Dell ranks third with a 6% probability. Despite his current net worth of $240 billion being higher than that of Zuckerberg or Huang, his probability still trails behind theirs.

Although the probabilities assigned by prediction market traders are low, if previous research holds true, there could be more than one trillionaire emerging in the future. A report released by Oxfam in January 2025 estimated that five trillionaires could appear globally within the next decade.