Donald Trump Jr.'s investment firm 1789 Capital has reportedly generated returns of roughly 200%, driven partly by an early bet on prediction market platform Polymarket.

The firm's main fund posted the gains as of June 30, according to a New York Times report published Wednesday.

That compares with an average return of about 21% for venture firms started in 2023, per PitchBook data cited in the report.

A 50x Polymarket Bet Polymarket was valued at around $300 million when 1789 Capital invested.

The company is now reportedly worth $15 billion.