Polymarket has appointed Warren Jenson, former CFO of Amazon, Electronic Arts, Delta Air Lines and NBC, as its first global chief financial officer. The appointment was announced Thursday, September 10, 2026. Jenson will report to founder and CEO Shayne Coplan and oversee capital strategy, long-range planning and financial infrastructure.
Before joining Polymarket, Jenson held leadership roles including president and CFO at Nielsen and president at LiveRamp. He currently sits on the boards of DigitalOcean, Dropbox, and Ripple. Coplan said: “We’re assembling the team to match the opportunity in front of us.” Jenson added that Polymarket created a “massive new global market category” and that he aims to put capital strategy and operating discipline in place to move quickly at scale.
The appointment comes as Polymarket tries to close a persistent volume gap with rival Kalshi. In June, Kalshi recorded roughly $33 billion in volume versus Polymarket’s $14.5 billion, with the two platforms moving about $47.5 billion monthly. Over the past seven days, DefiLlama data showed prediction markets generated around $4.05 billion in volume; Kalshi accounted for $2.91 billion, while Polymarket produced about $922 million.
Regulatory positioning is another key front. Kalshi is CFTC-regulated and argues federal derivatives law gives the commission sole jurisdiction, but several states disagree. Washington, Massachusetts, Michigan, Nevada and New York have moved against Kalshi, with New York seeking more than $36 billion in damages. A Michigan judge ordered Kalshi to pull sports contracts and threatened penalties of up to $500,000 per day, while New Jersey has asked the Supreme Court to settle jurisdictional questions. Polymarket gained a U.S. foothold by buying CFTC-licensed QCX, which operates separately from its geo-blocked international platform.
Separately, the CFO appointment coincides with preparations for a $1 billion funding round that would value Polymarket at approximately $21 billion, signaling an institutional expansion and compliance push.
