# Polymarket Seeks $1 Billion at a $21 Billion Valuation With Trump Jr.-Linked Fund Leading

1789 Capital is adding about $300 million to a roughly $200 million existing stake, days after rival Kalshi issued its first lifetime ban to a former member of Congress.

- Published: 2026-09-01T05:55:37.258Z
- Canonical: https://polylog.news/crypto/2026-09-01/polymarket-seeks-1-billion-at-a-21-billion-valuation-with-tr
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CoinDesk](https://www.coindesk.com/business/2026/09/01/trump-jr-s-firm-leads-usd1-billion-polymarket-raise-at-usd21-billion-value-report), [crypto.news](https://crypto.news/polymarket-targets-21b-value-in-trump-jr-linked-round/), [CoinDesk (Kalshi ban)](https://www.coindesk.com/policy/2026/08/31/kalshi-lays-down-first-lifetime-ban-for-ex-member-of-congress-george-santos)

Polymarket is raising about $1 billion at a $21 billion valuation, up from $15 billion, with 1789 Capital, the investment firm associated with Donald Trump Jr., contributing roughly $300 million on top of an existing stake of about $200 mil…

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