Intercontinental Exchange has injected another $600 million into Polymarket, extending its push into the fast-growing prediction market sector.

The New York Stock Exchange parent firm said the investment forms part of its previously agreed funding arrangement with Polymarket, following an initial $1 billion investment made in October 2025 from a planned $2 billion.

ICE also signaled it may acquire up to $40 million of Polymarket securities from existing holders, adding to its exposure as the company completes its participation in the platform’s broader fundraising round, according to a Friday announcement.

Financial terms, including valuation, were not disclosed and are expected to be revealed once the fundraising closes. ICE said the transaction is not expected to materially impact its financial results or capital return plans.

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Traditional market operators are moving deeper into prediction markets, which are platforms like Polymarket and Kalshi that allow users to trade on the outcome of real-world events, from elections to geopolitical developments.

Polymarket has emerged as a central venue in the sector, drawing rising trading activity alongside heightened scrutiny over market integrity and the use of information tied to sensitive events.

The additional funding lands as competition intensifies. Both Polymarket and rival platforms have explored fundraising rounds at valuations as high as $20 billion, a sign of growing institutional appetite for the space even as federal and state regulators debate oversight.