Polymarket is reportedly in advanced negotiations to raise roughly $1 billion at a post-money valuation of approximately $21 billion, according to a CryptoBriefing report. If completed, the round would more than double the roughly $9 billion valuation the blockchain-based prediction market carried after Intercontinental Exchange (ICE) invested in 2025 — placing the company more than $12 billion above its 2025 mark.

The capital would come with pointed guidance attached. Both ICE and Founders Fund have urged CEO Shayne Coplan to appoint a chief operating officer, a position that remains unfilled as of mid-October 2026. The request adds a governance layer to the fundraise: the backers closest to the company are pressing for operational depth to match its scale.

The round, the backers, and the stake

The new round is expected to be led by 1789 Capital, which is already an investor in the platform. The firm previously put roughly $200 million into Polymarket.

ICE remains the heavyweight on the cap table. The parent company of the New York Stock Exchange has invested $1.6 billion in Polymarket across several funding tranches, and its total commitments approach $2 billion. That capital has given ICE an estimated 22% stake in the company — an economic interest that ties a traditional exchange giant to the trajectory of a crypto-native trading venue.

Still, nothing has been finalized. The transaction is being negotiated, and the reported figures reflect what the round is expected to look like rather than a closed deal. Because the $21 billion figure is post-money, it includes the incoming capital, implying a pre-money valuation near $20 billion if the round closes on the reported terms.

Governance, expenses, and a growing executive bench

Coplan has faced scrutiny over personal expenses charged to the company. In 2025, Founders Fund required him to repay those costs. The sum involved was less than the annual salary of a software engineer, and Coplan has since made the repayments — a step that allowed investment discussions to continue.

ICE has also attached conditions to its money. In September 2026, Polymarket hired Warren Jenson as chief financial officer, a move that satisfied one of ICE's requirements for its investment. Taken together, the episodes trace a pattern: backers writing large checks are tying their capital to visible operational accountability, from expense discipline to named executives.

The leadership buildout extends beyond the CFO seat. Polymarket has recruited senior executives from Goldman Sachs, DoorDash, and Robinhood, and has also brought on a former FBI official. Coplan has acknowledged that the company faces significant growth challenges as he reshuffles the executive team, and he has emphasized the need for stronger management structures to scale. A COO appointment, if it happens, would slot directly into that buildout.

Competitive pressure from Kalshi

Polymarket is not raising capital in a vacuum. By mid-October 2026, Kalshi controlled the majority of US prediction market volume.

Prediction markets work a bit like a crowd-sourced odds board. Traders buy and sell contracts tied to real-world outcomes, such as elections or economic data, and prices reflect what the crowd expects to happen. The more traders a platform attracts, the tighter and more useful those prices become.

Kalshi is a regulated player, which matters for how it reaches US customers. Polymarket built on blockchain rails, has a different structure and a different path to market. That contrast frames what to watch as negotiations proceed: whether Polymarket secures the reported valuation, who fills the COO seat, and how its blockchain-based approach competes for US volume against a regulated rival that currently leads it.