Polymarket seeks $400M at about $15B valuation as ICE interest rises amid regulatory scrutiny

Polymarket is reportedly in talks to raise roughly $400 million at about a $15 billion valuation, according to multiple reports that cite unnamed sources. Some outlets say the initial $400 million tranche could expand to as much as $1 billion with additional backers ^{[1] [2] [3]}.

One report indicates Intercontinental Exchange (ICE), the New York Stock Exchange parent, has pledged roughly $600 million and that combined strategic commitments could push total investment above $1 billion ^[4].

Coverage notes the funding push comes as rival Kalshi recently achieved a higher post-money valuation and that both prediction-market firms operate under continuing regulatory scrutiny and insider trading concerns reported by observers ^[4].

The accounts are based on reporting from unnamed sources and have not been presented as formal company filings in the cited coverage ^{[1] [2]}.