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1789 Capital Is Leading a ~$1 Billion Polymarket Round at a ~$21 Billion Valuation:

Reported by Hedgeco
Sep 2, 2026· 2 min read
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Key Takeaways
  • • 1789 Capital is leading a ~$1 billion financing round for Polymarket at an estimated $21 billion post-money valuation, with the firm committing approximately $300 million to the deal.
  • • Polymarket's valuation would rise from approximately $15 billion pre-money to $21 billion post-money, representing a 40% step-up valuation increase as the prediction-markets platform pursues institutional capital.
  • • 1789 Capital has grown its assets under management from a few hundred million two years ago to over $3 billion currently, signaling rapid institutional traction for the politically adjacent venture capital firm.
  • • Donald Trump Jr. serves as a partner at 1789 Capital and adviser to both Polymarket and rival prediction-markets platform Kalshi, positioning the firm at the center of the emerging regulated derivatives-prediction market ecosystem.
  • • The financing round remains incomplete; neither Bloomberg nor The Business Times report closed capital, marking this as an active lead-and-raise process rather than a finalized syndicate.
Summary
1789 Capital is leading a planned $1 billion Series funding for Polymarket, the prediction-markets platform, according to Bloomberg and The Business Times reporting on August 31, 2026. The round values Polymarket at approximately $21 billion on a post-money basis, according to people familiar with the transaction and statements from 1789 Capital spokesperson Alexa Henning. The firm plans to contribute roughly $300 million of the total $1 billion raise, cementing its position as the lead investor in the round.

Polymarket's pre-money valuation stands at approximately $15 billion, reflecting material growth in the prediction-markets sector and investor confidence in the platform's regulatory standing and user base. This financing follows 1789 Capital's prior investment of approximately $200 million in Polymarket, indicating a sustained and expanding commitment to the platform. The financing is currently in process and has not yet closed, as neither Bloomberg nor The Business Times treat the capital as finalized.

1789 Capital itself has demonstrated significant institutional momentum, growing its assets under management to over $3 billion from a few hundred million two years prior. This expansion underscores growing institutional appetite for venture capital allocations tied to digital asset markets and politically aligned investment theses. The firm's leadership includes Donald Trump Jr., who serves as a partner at 1789 and as an adviser to both Polymarket and Kalshi, a competing prediction-markets platform. A Polymarket representative declined to comment to Bloomberg on the financing terms.

The round represents a broader institutional bet on regulated prediction markets as a mainstream asset class. Polymarket has previously raised capital at approximately $15 billion valuation in separate financing announced in April 2026, and the platform has benefited from strategic backing including prior stakes held by Intercontinental Exchange (ICE). The current lead-and-raise by 1789 Capital signals investor confidence that prediction markets will capture meaningful liquidity and regulatory clarity in the coming years.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Hedgeco 1789 Capital Is Leading a ~$1 Billion Polymarket Round at a ~$21 Billion Valuation: