Donald Trump Jr.’s 1789 Capital is reportedly investing $300 million in Polymarket as part of a $1 billion financing round, increasing the company’s valuation to $21 billion.

1789 Capital’s position in Polymarket has significantly grown since the company’s $15 billion valuation, indicating a successful investment in the prediction market industry.

Donald Trump Jr. is not only a major investor in Polymarket but also serves as an advisor to the company and other prominent firms in the event contracts sector.

Capital Raising for Polymarket

Polymarket, a leading non-technology unicorn, is rapidly raising funds in 2026 to compete with rivals and attract more professional traders to its platform.

Anchored by a $600 million investment from Intercontinental Exchange (NYSE: ICE) and another $400 million from a group led by hedge fund D.E. Shaw, the $1 billion financing round signals continued interest from investors in prediction market opportunities.

Polymarket’s strategic initiatives include launching a U.S. prediction market, introducing new trading options, and seeking regulatory approval for margin trading to attract institutional investments.

Trump Jr.’s Investment Timing

If reports are accurate, 1789 Capital’s $300 million investment in Polymarket comes amidst controversy surrounding Donald Trump Jr.’s involvement in regulatory discussions related to prediction markets.

Following a New York Times article alleging his comments at a Republican Attorneys General Association conference, the association clarified that his remarks were taken out of context, focusing on regulatory landscape discussions rather than influencing legal battles.