[1789 Capital Plans to Invest an Additional $300 Million in Polymarket, Valuation May Rise to $21 Billion] According to sources cited by The Wall Street Journal, 1789 Capital, where Donald Trump Jr. serves as a partner, plans to invest an additional $300 million in the prediction market platform Polymarket. This investment is part of a $1 billion funding round led by 1789 Capital. If completed, Polymarket's valuation will reach approximately $21 billion. 1789 Capital has previously invested a total of $200 million in Polymarket, and upon completion of this round, it will become one of its largest investors. Polymarket's current largest investor is Intercontinental Exchange (ICE), which previously disclosed holding $1.6 billion worth of Polymarket shares, accounting for approximately 22% of the company's issued shares.