Trump Jr.’s Investment Firm Leads $1 Billion Polymarket Funding Round

Donald Trump Jr.’s venture capital firm, 1789 Capital, is leading a $1 billion funding round for prediction market platform Polymarket, pushing its valuation to $21 billion. The firm is contributing approximately $300 million to the round, adding to an existing stake of around $200 million it had previously invested.

Valuation Jumps 40% in Just Months

The new funding round marks a significant increase from Polymarket’s previous valuation of about $15 billion, reflecting rapid growth in investor interest over a relatively short period. Prediction markets like Polymarket and competitor Kalshi allow users to place bets on a wide range of outcomes, from political events to entertainment predictions, and both platforms have expanded quickly over the past year.

Trump Family’s Ties to the Prediction Market Industry

Trump Jr. has built connections across the sector, having become an adviser to Kalshi in 2025, where he received company shares valued at more than $300,000. He also serves as an adviser to Polymarket, deepening the family’s involvement in the growing prediction market space.

Favorable Regulatory Environment

The investment comes as the broader regulatory climate has shifted in favor of the industry. The current head of the Commodity Futures Trading Commission, which oversees prediction markets, has publicly supported these platforms and taken legal action against states attempting to impose their own regulations. Earlier this year, President Trump expressed optimism about the growth of prediction markets under his administration.