
World Cup 2026 Prediction Market Volumes: Kalshi and Polymarket by the Numbers
Kalshi and Polymarket posted record trading volumes during the 2026 World Cup, with US prediction markets hitting 20 billion dollars in notional volume in just 12 days.
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22 articles

Kalshi and Polymarket posted record trading volumes during the 2026 World Cup, with US prediction markets hitting 20 billion dollars in notional volume in just 12 days.

A Manhattan federal judge denied Kalshi's emergency injunction for the second time in three weeks on July 28, 2026, even as a Minnesota court blocked that state's prediction market ban on the same day. The diverging rulings deepen a national legal split expected to reach the Supreme Court.

A House Agriculture subcommittee will examine customer protections and market integrity in sports event prediction markets on July 21, 2026. Here is who is testifying, what is at stake, and why the CFTC and the states are on a collision course.

Underdog has gone fully in-house with a CFTC-regulated prediction market exchange, becoming the first sports company to hold the complete DCM, DCO and FCM license stack. Here is what changed and why it matters.

Trump Media will sell Wall Street millisecond access to market-moving Truth Social posts from August 1, 2026, reviving fairness questions for prediction markets like Kalshi and Polymarket.

A White House teleprompter operator allegedly made nearly $100,000 betting on the words Donald Trump would say, using Kalshi mention markets. Here is what happened and why the CFTC probe is a defining test for prediction markets.

The CFTC is now suing states to defend Kalshi, while judges in Michigan, New York and Washington rule the other way. Here is the full state-by-state map of the 2026 prediction market legal war.

A White House teleprompter operator is under CFTC investigation for allegedly making about $100,000 on Kalshi markets tied to the words in Trump's speeches. Here is what happened and why it matters for prediction markets.

A US congressman is demanding Polymarket hand over records on paid influencers who pushed election-denial claims while its election markets were live. Here is what the probe covers and why it matters.

The CFTC has ordered Kalshi to honor Michigan trades, directly overriding a state court and escalating the federal fight over prediction market sports contracts.