Stock Markets September 10, 2026 10:25 AM

Polymarket Hires Finance Veteran Warren Jenson as Chief Financial Officer

Move aims to shore up strategy and scale operations as prediction market faces intensified competition from Kalshi

By Jordan Park
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Polymarket appointed Warren Jenson, a seasoned finance executive with more than 30 years of experience at major U.S. corporations, as its chief financial officer. The hire is part of a broader push to recover market share from rival Kalshi and accelerate both U.S. and international growth as the prediction market sector expands.

Polymarket Hires Finance Veteran Warren Jenson as Chief Financial Officer
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Key Points

  • Warren Jenson, 69, was named CFO of Polymarket and will report to CEO Shayne Coplan.
  • Jenson has over 30 years of finance experience and has been CFO at Amazon, Electronic Arts, Delta Air Lines and Nielsen; he sits on the boards of Dropbox and Ripple.
  • Polymarket is expanding its senior leadership amid competition from Kalshi and reported surpassing $1 billion in annualized revenue.

Polymarket announced on Thursday that Warren Jenson, 69, will join the company as chief financial officer, a strategic addition as the prediction market platform looks to regain momentum against competitors and expand its footprint in the U.S. and abroad.

Jenson brings more than three decades of corporate finance experience to Polymarket. Over the course of his career he has served as finance chief at several large U.S. companies, including Amazon, Electronic Arts, Delta Air Lines and Nielsen. He also holds board roles at cloud storage company Dropbox and crypto firm Ripple.

Polymarket said Jenson will report directly to CEO Shayne Coplan and will support the company’s long-term planning as it pursues scaling initiatives. In announcing the appointment, Coplan emphasized the importance of Jenson’s background for the company’s next phase.

"His experience will be critical to everything we build from here," Coplan said.

The hire follows a series of recent leadership additions at Polymarket as the platform seeks to reverse declines in market share. Earlier this year the company named former Uber executive Travis VanderZanden as chief growth officer. These moves form part of a broader effort to strengthen senior management while competing in a rapidly growing segment of the crypto sector.

Prediction markets - platforms that allow users to trade on the outcomes of events - have grown in visibility and trading activity. Data cited by Polymarket shows that in August combined volumes at Kalshi and Polymarket, the two largest exchanges in the space, were $48.4 billion, according to Piper Sandler. In that month Kalshi’s volumes reached $40 billion, nearly five times the volume at Polymarket, the data indicated.

Polymarket, which celebrated its sixth anniversary earlier this year, has reported surpassing $1 billion in annualized revenue. The company has also pursued high-profile promotional activities, including a partnership with NBA all-time leading scorer LeBron James to help promote the platform.


As Polymarket moves to fortify its financial leadership and growth plans with Jenson on board, the company will confront intense competition from larger-volume rivals while attempting to scale revenue and operations across regions.

Risks

  • Polymarket faces competitive pressure from Kalshi, which posted substantially higher trading volumes in August; this impacts the fintech and crypto segments.
  • Efforts to scale operations and execute long-term planning depend on successful integration of senior executives and strategy execution, affecting corporate finance and growth outcomes.
  • Market-share recovery is uncertain given current volume disparities between the leading platforms, posing revenue and operational risks for prediction market participants.

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