---
title: "World Cup final drives billions to prediction markets, and a French backlash"
description: "Sunday's Spain-Argentina final has pushed trading on prediction-market platforms Kalshi and Polymarket past $5 billion, a scale that rivals the biggest US sporting events. As the money pours in, France has ordered internet providers to block Polymarket, exposing a widening split over how to regulate the sites."
category: "Business"
category_url: https://newsparlor.com/category/business
author: "Priya Sharma"
published: 2026-07-18T10:26:00.000Z
updated: 2026-07-18T10:26:00.000Z
canonical: https://newsparlor.com/article/world-cup-final-prediction-markets-kalshi-polymarket
tags: ["prediction-markets", "betting", "kalshi", "polymarket", "regulation"]
---
# World Cup final drives billions to prediction markets, and a French backlash

Sunday's Spain-Argentina final has pushed trading on prediction-market platforms Kalshi and Polymarket past $5 billion, a scale that rivals the biggest US sporting events. As the money pours in, France has ordered internet providers to block Polymarket, exposing a widening split over how to regulate the sites.

The World Cup final between Spain and Argentina, to be played on Sunday, has become one of the most heavily traded events ever on prediction markets, drawing billions of dollars to platforms that let people buy and sell contracts on the outcome much as they would shares.

Across Kalshi and Polymarket, the two best-known such platforms, combined trading tied to the tournament has run into the billions of dollars. Polymarket alone has seen [around $4 billion of trading on its market for the outright winner](https://www.themirror.com/sport/soccer/world-cup-final-kalshi-polymarket-1941477), and on Kalshi the contract on the final has become the biggest in the platform's history, [with more than a billion dollars wagered](https://fortune.com/2026/07/17/world-cup-final-biggest-ever-prediction-market-kalshi-bets-top-spain-argentina/), according to reporting. Between them the platforms have processed well over $5 billion across the tournament's markets, a scale that rivals or exceeds the sums seen around events such as the Super Bowl. On Kalshi, traders have made Spain the favourite over Argentina heading into the final.

## Two very different platforms

Although often mentioned together, the two operate on different foundations. Kalshi is a US exchange regulated by the Commodity Futures Trading Commission, where users fund accounts through conventional banking and trade what are treated as event contracts. Polymarket runs on blockchain technology, settling trades in a cryptocurrency and operating globally, which has allowed it to grow quickly but has repeatedly put it at odds with national gambling regulators.

That distinction sits at the heart of a broader argument: whether these markets are a legitimate financial instrument, letting people hedge and express views on real-world events, or simply gambling by another name.

## France pulls the plug

France has come down firmly on the second view. On July 17, the country's gambling regulator, the Autorité Nationale des Jeux, [ordered internet service providers to block access to Polymarket](https://www.france24.com/en/france/20260717-france-orders-internet-service-providers-to-block-access-to-polymarket), escalating from an earlier move against the platform's payments. The regulator argues that Polymarket amounts to unlicensed gambling under French law and says large numbers of French users had continued to reach the site despite the earlier restrictions.

The block is among the most forceful actions yet by a European government against a crypto-based prediction market, and it signals how differently the two sides of the Atlantic are approaching the sector. In the United States, regulators have moved toward bringing platforms like Kalshi inside a formal framework; in much of Europe, officials are more inclined to treat the offshore, crypto-native services as illegal betting operations to be shut out.

## A test case

The World Cup final, watched by a global audience of hundreds of millions, has become an unlikely proving ground for that disagreement. The vast sums flowing through Kalshi and Polymarket show how far prediction markets have moved from their origins in wagering on elections and political events toward the mainstream of sport.

As they grow, so does the scrutiny. France's block is unlikely to be the last such intervention, and the question it raises, of where a market ends and gambling begins, will only sharpen as the platforms chase the next big event.