Line Between Partner and Owner Blurs As ICE Pours Another $600 Million Into Polymarket

Intercontinental Exchange (ICE) completed a new $600 million direct cash investment in Polymarket on March 27, fulfilling the final tranche of a multi-billion-dollar commitment to the prediction market platform.

The announcement confirmed that ICE also expects to purchase up to $40 million in Polymarket securities from certain existing holders.

From $1 Billion Seed to Full $2 Billion Commitment

ICE first invested $1 billion directly in Polymarket in October 2025. That initial deal valued the prediction market at roughly $8 billion pre-money and $9 billion post-money.

It marked one of the largest institutional entries into DeFi by a traditional financial firm.

With today’s additional $600 million and the anticipated share purchases, ICE has now completed all obligations under its original investment arrangement.

The NYSE parent company said the combined investments will not materially affect its financial results or capital return plans.

However, the valuation attached to this latest tranche remains hidden. ICE stated those terms will surface only after Polymarket finishes its broader equity fundraising round.

A Platform Accelerating Toward Mainstream Finance

Polymarket’s trajectory since ICE’s first check has been aggressive. The platform now counts over 1.3 million traders and has processed more than $18.1 billion in cumulative trading volume.

Daily active users grew from roughly 20,000 to nearly 58,000 over the past year.

The platform also struck a multi-year exclusive partnership with TKO Group Holdings, becoming the official prediction market for UFC and Zuffa Boxing.

Plans for a professional trading tier with advanced analytics and institutional-grade execution tools are also underway.

Meanwhile, Bloomberg reported in November 2025 that Polymarket was seeking fresh capital at a $12 billion valuation, a 20% jump from its previous round.

Speculation around a potential US IPO intensified after founder Shayne Coplan rang the NYSE opening bell alongside ICE CEO Jeffrey Sprecher.

ICE’s role has also expanded beyond capital. The company became the exclusive global distributor of Polymarket’s event-driven data to institutional investors and agreed to partner on future tokenization initiatives.

Whether this deepening relationship stays a partnership or evolves into something closer to operational control will depend on what terms emerge from the ongoing fundraise.