Polymarket is in active discussions to secure $400 million of new financing that would value the prediction market operator at $15 billion on a post-money basis, according to people familiar with the talks. The proposed raise would be added on top of a $600 million investment previously provided by Intercontinental Exchange Inc. (NYSE: ICE) in late March, with ICE having earlier committed to invest as much as $2 billion in the company.
The company is said to be courting additional strategic investors beyond Intercontinental Exchange as it explores the current financing round. Sources indicate the round could expand to as much as $1 billion if Polymarket is able to bring in more partners.
This fundraising activity arrives amid a surge of interest in online prediction markets. Platforms such as Polymarket and rival Kalshi have seen significant growth in user activity and capital flows. A prior report cited a March valuation for Kalshi at $22 billion, about double a late-2025 valuation of $11 billion. Polymarket itself recorded daily volumes near $478 million as of March 2026, underscoring strong consumer engagement with these markets.
Users of these services participate in markets that span sports, entertainment and political events, and in recent months some platforms have even offered markets tied to geopolitical developments, including outcomes related to the U.S.-Israel war on Iran. The rapid expansion in activity has coincided with increased regulatory scrutiny within the United States.
Several states have accused online prediction market platforms of operating illegal gambling enterprises, and concerns have been raised about the potential for prediction markets to facilitate insider trading. These legal and regulatory questions have become an important consideration for investors and operators as the sector scales.
Polymarket's pursuit of substantial new capital and strategic partners reflects both the commercial momentum in the prediction market category and the need to strengthen its investor base amid heightened scrutiny. The company and its prospective backers have not publicly announced final terms of any deal.
Short summary: Polymarket is negotiating a $400 million financing that would value the firm at $15 billion including new money, following a $600 million investment from Intercontinental Exchange. The company is seeking further strategic investors and could expand the round to $1 billion, as prediction markets draw high trading volumes and legal scrutiny.