Donald Trump Jr. has built a unique investment structure that makes him a beneficiary regardless of who wins the battle of prediction market giants—Kalshi or Polymarket. His venture fund, 1789 Capital, invested $300 million in Polymarket, while he holds a paid advisory position and a stake in competitor Kalshi. This is not just diversification—it is a strategic hedge that virtually eliminates financial losses.
Financial Breakdown: Who Is Worth What
The scale of the stakes is impressive. 1789 Capital participated in Polymarket's $1 billion funding round, after which the platform was valued at $21 billion. Trump Jr. acquired his stake in Kalshi back in 2025, when the company was valued at a modest $300,000. Since then, Kalshi's market capitalization has soared to $22 billion, making this investment likely one of the most profitable positions in his portfolio.
Conflict of Interest or a Genius Move?
In January 2025, Trump Jr. took on the role of a paid strategic advisor at Kalshi. Just seven months later, he joined the advisory board of Polymarket, and 1789 Capital made its first investment in the project. Thus, the U.S. president's son found himself on both sides of the barricades in the fight for the same users and the same set of rules.
The ethical question here is inevitable. Advising two direct competitors simultaneously is a classic case of conflict of interest. Kalshi responds that Trump Jr. is exclusively focused on marketing strategy and does not consult on regulatory matters. However, his role in lobbying for the industry's interests suggests otherwise.
Political Influence as an Asset
According to the data available to me, Trump Jr. personally persuaded Republican attorneys general to stop pressuring betting platforms. He spoke at a closed meeting in New Orleans in March, arguing that the campaign against such platforms was initiated by traditional gambling companies to protect their business. Notably, the CFTC this year filed lawsuits against nine states to prevent them from regulating betting markets at their own level. Eight of those states are led by Democratic attorneys general. The situation became most acute in Arizona, where criminal charges were filed against Kalshi in March for illegal gambling services.
President Trump himself in May called betting markets a new financial product and stated the need to maintain CFTC oversight over them. His son's interests in leading platforms have become part of the dispute over market regulation.
My expert take: this situation is a vivid example of how political capital and financial markets intertwine in the era of deregulation. Trump Jr. is not just an investor—he is an active participant in shaping the regulatory environment in which his assets operate. As the regulatory war continues, his position remains win-win: any outcome of the legal battles will strengthen either one or the other platform in his portfolio.