Polymarket secures $300M investment boost from Donald Trump Jr.’s fund

1789 Capital, the venture capital firm where Donald Trump Jr. serves as a partner, has made a major equity investment in Polymarket at a valuation of approximately $300 million. Trump Jr. also joined Polymarket’s advisory board as part of the deal, tying one of the most politically connected names in America to one of crypto’s most politically relevant platforms. The investment, announced on August 26, 2025, has since proven to be spectacularly well-timed. Polymarket’s valuation surged to an estimated $15 billion by spring 2026, representing a nearly 50x increase from the price 1789 Capital paid to get in. The numbers behind the deal 1789 Capital’s main fund reported returns of roughly 200% as of June 30, 2026. For context, the average return for peer venture firms during the same period sat at around 21%. The firm’s assets under management ballooned from a few hundred million dollars before the 2024 election to over $3 billion. A critical inflection point arrived on November 25, 2025, when the Commodity Futures Trading Commission granted Polymarket regulatory clearance to operate as a fully regulated platform in the US. Before that approval, Polymarket had existed in a regulatory ...