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Donald Trump Jr.’s Firm Pours Another $300M Into Polymarket

By jili tutorial · September 1, 2026

Donald Trump Jr.’s Firm Pours Another $300M Into Polymarket

Donald Trump Jr.’s venture capital firm, 1789 Capital, is reportedly one of the key investors in a new $1 billion funding round for Polymarket. The firm is said to be putting up $300 million as part of the deal.

1789 Capital has held a stake in the prediction market operator for about a year. It is now described as a major participant in the latest round, which values Polymarket at roughly $21 billion — a sharp jump from the $15 billion valuation the company received just four months ago.

A Bet That’s Paying Off

Although 1789 Capital’s original stake in Polymarket was relatively small, reports suggest it has grown in value many times over following the platform’s rapid appreciation. The same pattern has reportedly played out with another prediction-market investment in the firm’s portfolio.

Trump Jr. is also an advisor to Polymarket and to another well-known company operating in the event-contracts space.

Polymarket’s Fast-Moving Fundraising Push

Polymarket is already one of the largest non-technology unicorns. In 2026, it has been raising capital at a brisk pace in an effort to keep pace with rivals and bring more professional traders onto its platform.

The latest funding round includes $600 million from Intercontinental Exchange (NYSE: ICE), the owner of the New York Stock Exchange, and $400 million from a group of investors led by hedge fund D.E. Shaw. That strong institutional participation shows that appetite for prediction markets remains robust among professional investors.

Expanding Beyond Prediction Markets

Polymarket’s new capital-raising effort comes just months after it relaunched its U.S. prediction market. The company is also working to shake off the perception that prediction markets are simply a new-age alternative to sports betting.

As part of that push, Polymarket has been courting more sophisticated institutional investors. It has launched new offerings tied to private markets and GPU compute trades, and it has asked regulators to approve margin trading on its platform.

Why the Timing Raises Eyebrows

If reports are accurate that 1789 Capital is preparing to invest $300 million in Polymarket, the timing is likely to draw attention.

The move comes just days after The New York Times reported, citing four unnamed sources, that Trump Jr. urged Republican attorneys general to stay out of state-level legal fights against prediction markets. He reportedly made the remarks at the Republican Attorneys General Association (RAGA) conference in New Orleans.

The association told CNBC that the sources cited by The New York Times took Trump Jr.’s comments out of context, adding that he only briefly discussed the regulatory landscape facing prediction markets.

The latest investment reinforces Trump Jr.’s deepening ties to Polymarket — and signals that the company’s rapid rise is far from over.