# Exclusive | Donald Trump Jr.’s Fund Boosts Polymarket Investment by Around $300 Million

> **Open Intelligence Dossier** · First detected: 2026-09-01 02:07 UTC · Category: Business

## Executive Summary
Polymarket has secured a $1 billion funding round led by 1789 Capital, a firm associated with Donald Trump Jr., valuing the platform at $21 billion.

## Intelligence Brief
Polymarket has entered a significant new phase of capitalization following a funding round totaling $1 billion. According to reports from The New York Times and Bloomberg, this investment round was led by 1789 Capital, a fund associated with Donald Trump Jr. The financial influx has resulted in a valuation of the firm at $21 billion. While the total round reached the billion-dollar mark, the Wall Street Journal provides specific details regarding the contribution from the lead fund, reporting that 1789 Capital boosted its investment in Polymarket by approximately $300 million. Coverage of the deal is widespread across major financial and general news outlets. The Wall Street Journal's reporting was marked as an exclusive, specifically highlighting the $300 million injection from Donald Trump Jr.'s fund.


Simultaneously, Dealroom and Bloomberg focused on the broader metrics of the transaction, emphasizing the $21 billion valuation of the firm. The New York Times also detailed the leadership of 1789 Capital in the funding process. These reports collectively establish the scale of the investment and the identity of the primary financial backer involved in the transaction. This development marks a substantial increase in the financial backing of Polymarket, a platform now valued at $21 billion. The involvement of 1789 Capital is a central point of the coverage, linking the funding effort directly to the firm led by Donald Trump Jr. The magnitude of the $1 billion round suggests a high level of investor confidence or a strategic expansion of the platform's operations.


The specific contribution of $300 million from the lead fund indicates a focused effort by 1789 Capital to increase its stake in the organization. Future attention will likely center on the deployment of the $1 billion in capital and the operational impact of 1789 Capital's leadership in this round. Based on the current reporting from UA.NEWS and other sources, the focus remains on the valuation and the specific roles played by the investing parties. Monitoring will continue regarding whether further details emerge about the terms of the investment or subsequent changes to the platform's corporate structure resulting from the $21 billion valuation.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| marketscreener.com | Intercontinental Exchange-Backed Polymarket Set to Receive $300 Million Investment From 1789 Capital | [Source Link](https://news.google.com/rss/articles/CBMi5wFBVV95cUxOYzZpVWJHWFBfc0V5NDRiM2tUWS1xSWYxM2ZXVlN0NlhnOWgtOXdNRjcyTDNKRUowUkI4Y0dWalN4dGpBQk4wenJ2T2lHd3loN0FSM3R0SlVzMGlfWlpiTTBpYUJ0V3dMQVFNa1YyUXBJZzVkRVRMV0FhVk1nYTFMTnp3aGV5N0NEMGwyLUQ5enJXeUZCQXNwWlItTFZjakZ0YTFPcWdTNjAwVU1EZjI1X1hxTEE5Ukc4RmFSRG9wcU9CWkZxWHhlTnJkSkhaeDE4SHAxcUgzWm52WFF0aTBjckhwMjhLLTA?oc=5) |
| finance.biggo.com | Polymarket Raises $1 Billion at $21 Billion Valuation, Up 40% in Four Months | [Source Link](https://news.google.com/rss/articles/CBMidkFVX3lxTFBfZS00ODJxcEtuMldEMHNvZ3I2WjBpME5XUk5VTUhScTVjMExjVFVEaUlZRlowNkJaei1LWW9kZm1TZVZiVVNvNHZjNHpqVUZFUzU2cE9DajlIQ0d3VGNoNnlyY1NzTDNkXy13WjlDSmMyR2ZGQkE?oc=5) |
| CoinDesk | Trump Jr's firm leads $1 billion Polymarket raise at $21 billion value: Report | [Source Link](https://news.google.com/rss/articles/CBMixAFBVV95cUxNUmRpMnhVamdSTGxWVjFpSTV2Ql9wbXN2aFlOTFIwc3ZPeldCMXIxbDFlQ0VmaHM2UTd5aGhjb0tmTGdJSm5EOU1VUzNWVU9HcmdDbHFwZWRPSERLQ2NrOU96YjJ0cDVtOG1tNkNRdTJ2dWpYd19Lb1Y5djV6M3FwVjA2dTl1azkyVUFZZ1prRzRTeDZTRW5FdlFlbnlTQzhyeXRkdS0xXzJ3RnhlcjAyMFBrb3FnWGYycTZmTVJRRVg2UFlm?oc=5) |
| Forbes | Trump Jr.’s 1789 Capital Leads New $1 Billion Funding Round For Polymarket | [Source Link](https://news.google.com/rss/articles/CBMi0gFBVV95cUxNdzIwTjRnWUI1aUtiUjQwODZRX2dOOGZHTEdVdHI1N1pYbDh0MXoyTUNKdTVCZ3F5V2lJSmVRMnIzN1gxYXVad1htcUZqOXRWMm5aM216MVdOWGdvVzJLMHE1U21uSnY5QWs4U2ZSeWRyOFlSVDdLdXpVd0hENG1tT2I4Wk4wTmVfdk44ZDBfZXphc0ZhNVYxUkJFaUlkN1JVdm53N3RPZUFianI1MUlRNFZkR2R5a1dQeVBpdjRwaC1vZk05YTB3T2FhN3ZlOUNFM0E?oc=5) |
| TechCrunch | Polymarket reportedly raises $300 million from Donald Trump Jr.’s investment fund | [Source Link](https://news.google.com/rss/articles/CBMitAFBVV95cUxNcUNnNlhhTWdXOU5vcEh4bjY3bWdrYlRjMHdjWEVlVXEtMXJ1amwzV3EtZ01EWjVfd3A5OFpUV3FmN0h6UmNzSmRPamJiOF91TUVZLUtsdkdmVXp3R216dTQ0bTl2by13dXVLVE9Yc2Q2SVlRMDJhZ19BQWp0V3gtN05STTA5Um9NVWJpbnhaVGVyX2E3Yk0zSjkwTXZSd1cwQVRNMHN5QUZpM0NDZ1dvSWFjUFU?oc=5) |
| Axios | Trump Jr.'s firm to lead Polymarket's $1B round | [Source Link](https://news.google.com/rss/articles/CBMikwFBVV95cUxOOXl4d01FMHRrRFlHYl9WWTZ1c3NsdS16S2JnUDJzcUtTeGNUY182YjRkT0NOZi1ubHNsUG5QaDRIYkxmUmJ0WklBQkMtUlZjc29kbm9aQWQ4Njk1SkRDRDgzZ3U5dFVBNnlBcEVUNHg2aTM5MmtBNzBnWHAzNmJBRko0VUJYUmxNb19IbTgwcXdzUVk?oc=5) |
| TradingView | Polymarket Funding Round Led By 1789 Values Firm At $21 Billion - Bloomberg News | [Source Link](https://news.google.com/rss/articles/CBMi4AFBVV95cUxQYnNFUC1laEh5N0ZPb2xvdWZlUHpFZHJEZDg0Yngxc2lTYUp5dXN0M1dSRzVmSy10TEdFZTVpMUQtS0x6WGVzTkgzeExaNHRMYXlhLTVlRE80bWJXenozZmZySkhKWm50VHR0VU5oVlNQOUJ1QVd3cVJWem9Wd1hpTzMzVjJ2TndlMnRrQ0FZYlZQWGJTYllmZFRYd3dqSjhVcmx0VXJHTFA4SzlRazYtd2VnYVZuVXNuMFk5QU44M3kwV1JTd3E3dVd4TVM0RXpWSkNKQlB3eWNuTEtrYkNEUA?oc=5) |
| UA.NEWS | Polymarket reportedly raises $300 million from 1789 Capital, WSJ says | [Source Link](https://news.google.com/rss/articles/CBMilAFBVV95cUxOUy0tdFFJT1JzYjlDV0ZsYXEwOTI0Tml4OFNnNnRjMXQySUxwU1kwUnNVZWJqYzl2LUk2MnFoTU43WmdFU2xhNTlhcnJCa1FaOV9TQXgtTXdwWW5MOEhOby1mdWJGVjlxRFZ5VWR5bXRWVmpaR2NoR2c3OFA5N2Zad3o3Rzh5LWlYODJYcnFpUkNOam40?oc=5) |
| Dealroom | Polymarket raises $1B at $21B valuation, led by 1789 Capital | [Source Link](https://news.google.com/rss/articles/CBMilgFBVV95cUxOTVNLVkk2R09XdGEwSkw1c2k0ZzRYbWROc0xwczdDcTN6aW1MRzZkbTFLOWtEd1pxWHJTUzdLSUk0UGFZMjFaYmptQW96NjJ4UFh0c0JRSzlhcmg1YS05VDFyT2xtN3VjaTUzcGo0aEZEajgwM3Z1Rkt1MTRpcnFlVlNhbmtNSUIxOUFlN3lJLVBtM1RubkE?oc=5) |
| Bloomberg.com | Polymarket Funding Led By 1789 Values Firm at $21 Billion | [Source Link](https://news.google.com/rss/articles/CBMiswFBVV95cUxQcV9hUzdqVDFfemdTZFR6NFZrdlRNbUd6WjZvVENjZXhCWkQwbWs3bGdqNTFrOThrc2tLNTQ1cFg1RFl3bzBsNWl1bFk4a05ib09mWXpzTGpCRWhiV3p2cmVnWkNEWnoyMUZnV3dxR2UxQjdxbmJRNVFLYTUyWWw5OUZzLUxvMy1aU2N6MWE3am9RcjBZVlcwNGpMOXo3UFQwWTlNTEJMSW0xUGsxZXFwT04zYw?oc=5) |
| The New York Times | Donald Trump Jr.’s Firm Leads $1 Billion Funding Round for Polymarket | [Source Link](https://news.google.com/rss/articles/CBMifkFVX3lxTE44OThUM2Z3OTh5QzdWb1ZvczM2RGkyclJ2eGRrRG5iZUpFS19RWkNBMWR5SUV4M2dvMjRKMzZwM1k5SkRuX1VXNzVMN0tEYmVVX3lyT2JHY0JfSkJqVDRnUldTY3JCSTNoc2lBRHFwdVo0QWt3YXlUNFlrMWtFZw?oc=5) |
| WSJ | Exclusive - Donald Trump Jr.’s Fund Boosts Polymarket Investment by Around $300 Million | [Source Link](https://news.google.com/rss/articles/CBMivAFBVV95cUxOb2gweXcyVXBZWldQam4xSGM1SkNRVExQMUtrZHpDcEEzTnRoNUxQbEhQMVZwVmZ2VHNNVy10YW1ReHRqWHl5dkJHQXZrRlU0NTZPYnZoTDVxbHJ4eE1sYjVld1VkUmN5YlhiaElkcmdPTkhBcFR1LXNYY01KU29Ddmg3aHBWNkpXSWprempuTkNpLVpOdzBwSVgtanlvcE45bnd2dnNkUm1QUHJnV2xMOTBoRi11RzhUbXFocg?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-09-01/exclusive-donald-trump-jr-s-fund-boosts-polymarket-investment-by-around-300*