- Polymarket’s trading volume collapsed 56% following the end of the FIFA World Cup, while rival Kalshi fell 25% — revealing just how dependent the prediction market industry’s headline numbers were on a single mega-event rather than sustained retail and institutional engagement.
- Polymarket has been plagued by exchange infrastructure problems that have eroded user trust, while Kalshi is pulling ahead on product sophistication — particularly its crypto-native, time-weighted pricing model that now commands approximately 90% market share in regulated US prediction market volume.
- The valuation divergence is stark: Polymarket is seeking a valuation around $20 billion, while Kalshi — a CFTC-regulated exchange — has been targeting a raise at $22 to $40 billion, with Kalshi’s regulatory moat increasingly seen as a durable competitive advantage that Polymarket’s offshore structure cannot replicate.
- Kalshi faces its own headwinds, with multiple states filing gambling lawsuits challenging its event contracts as illegal wagering — a legal war that mirrors earlier battles over sports betting legalization and could force Kalshi to pull products in certain jurisdictions even as it expands nationally.
What Happened?
Bloomberg Opinion’s post-World Cup audit of the prediction market industry found the sector struggling with a significant hangover. Polymarket’s volumes dropped 56% from peak World Cup levels, and Kalshi fell 25% — large declines that expose the structural challenge facing both platforms: generating consistent liquidity without a marquee event driving traffic. Polymarket’s decline is compounded by ongoing exchange infrastructure issues that have frustrated active traders, while Kalshi has been quietly building market share through superior pricing technology and its CFTC-regulated status, which allows it to legally offer contracts to US users that Polymarket — operating primarily offshore — cannot.
Why It Matters?
The World Cup comedown is the prediction market industry’s version of the post-Super Bowl revenue gap — the challenge of sustaining volumes between blockbuster events. The divergence between Polymarket and Kalshi is instructive: regulatory legitimacy is proving more durable than first-mover scale. Kalshi’s 90% market share figure suggests its CFTC oversight is translating into institutional trust that Polymarket cannot replicate despite its larger brand profile. The state gambling lawsuits against Kalshi are a genuine risk — if courts find event contracts constitute gambling, it could require contract-by-contract legal battles across dozens of jurisdictions, significantly increasing compliance costs and slowing Kalshi’s expansion roadmap.
What’s Next?
Both platforms will need sustained high-profile events — elections, major sports finals, economic data releases — to maintain retail engagement through the inter-event lull. Kalshi’s next fundraise will be a key valuation test: closing at the $40B end of its targeted range would validate the regulatory moat thesis and put its valuation north of major traditional exchanges. For Polymarket, infrastructure fixes are urgent — volume losses from exchange problems are self-inflicted and recoverable, but only if the platform demonstrates reliability during the next high-traffic cycle. The state gambling lawsuits will likely take years to resolve, but the first adverse ruling could trigger a significant repricing of both platforms’ growth stories.
Source: Bloomberg Opinion
