Prediction Market News Today: Biggest Moves

TL;DR

• As of October 26, 2026, the biggest prediction markets news is legal. Utah sued Kalshi on October 20, and Polymarket has challenged Ohio's licensing rules in court.
• The CFTC's June proposal to review event contracts case by case is still the main federal rule on the table, and the Supreme Court has not yet agreed to hear New Jersey's petition about Kalshi's sports contracts.
• Press reports put combined Kalshi and Polymarket crypto volume at a record $2.7 billion in one mid-October week.
• The scheduled events markets are pricing this week include the Fed decision on October 28 and the midterms on November 3. Check the live prediction market data below, since prices keep moving.

Looking for prediction markets news today? This week's stories split into three groups: lawsuits, rule-making and volume, plus the scheduled events traders are watching.

Each item below carries its date and its source. Where a claim is one side's argument in a lawsuit, it is attributed to that side.

What Is Happening With Utah's Lawsuit Against Kalshi?

Utah Attorney General Derek Brown filed suit against Kalshi on October 20, 2026. The state argues Kalshi's yes or no contracts are indistinguishable from a sportsbook's offerings and that operating them breaks Utah's constitutional ban on gambling, according to KPCW.

Utah estimates between $30,591,600 and $61,183,200 in illegal wagers from Utah-based accounts. It asks the court to stop Kalshi operating in the state, to order Kalshi to give up profits and pay restitution, and to require a geolocation provider that blocks sports, election, political, cultural and mention contracts.

Kalshi says it is a federally regulated financial exchange, "like the stock market," and that no single state should have a veto over it. It says the suit does not affect its own federal appeal against Utah. For the plain-language version of what is being argued, see our explainer on whether Kalshi is trading or wagering.

What Is the Latest Polymarket News on Ohio?

Polymarket has sued over Ohio's licensing rules. It argues that requiring operators to have an in-state presence and in-state servers discriminates against out-of-state businesses and violates the Commerce Clause, according to a post by gambling law expert Daniel Wallach on October 20, reported by Card Player on October 22.

The same report says Ohio sent cease-and-desist letters to 10 prediction market operators, including Polymarket. The report does not name the court.

What Is the Latest CFTC Prediction Markets News?

The CFTC's main open proposal dates to June 10, 2026. It would amend Regulation 40.11 and add an appendix to Part 40, setting up a 90-day review process applied contract by contract to event contracts that involve activities listed in the Commodity Exchange Act.

The comment period closed in July. I found no final rule as of October 26. Our overview of prediction market regulation covers how the CFTC and the states fit together.

What Is Happening at the Supreme Court on Kalshi's Sports Contracts?

New Jersey has asked the Supreme Court to review a Third Circuit ruling in Kalshi's favor, according to CasinoBeats on October 11. The question is whether CFTC registration displaces state gambling laws for Kalshi's sports contracts.

The NFL filed in support of New Jersey, citing game integrity, and so did the American Gaming Association and a group of 39 state attorneys general. The Court has not agreed to hear the case. If it does, a decision would likely come in 2027.

The Sixth Circuit ruled against Kalshi on sports contracts in September, according to CoinDesk, which is why the circuits are split.

Did Crypto Prediction Market Volume Hit a Record?

Press reports say yes. Crypto Briefing reported on October 24 that combined crypto prediction market volume on Kalshi and Polymarket reached a record $2.7 billion in a single mid-October week, driven by short-term Bitcoin contracts.

Kalshi's Bitcoin contracts alone generated more than $2 billion of it, the report says. The article names no data provider, so treat the figure as a press number and not an official tally. Volume is also an easy number to misread, which our guide to what volume means explains.

What Are Prediction Markets Pricing This Week?

Three scheduled events matter most. The Federal Reserve meets October 27 to 28, and the market currently puts a hold at the October 28 decision at 95.4% on Polymarket, against 94%-1 on Kalshi. Our guide to fed rate cut odds explains how to read that contract.

The midterms are on November 3. Polymarket currently prices Democratic control of the House at 91.5%, and our guide to midterm election odds covers both chambers.

Federal funding runs through December 11, which our piece on government shutdown odds covers. The NBA season has been under way since October 20, and our NBA awards odds guide covers the season-long markets.

How Should You Read Prediction Markets News?

Run through four checks before you share a headline.

1. Who is making the claim. In a lawsuit, a state's description of a contract is its argument, not a ruling. Look for the court's own words.
2. The date. Legal and regulatory stories change in days. Note the date of the source as well as the date you read it.
3. Ruling or filing. A filing asks for something. A ruling decides it. Headlines often blur the two.
4. The market behind the story. A price is a probability at one moment. Pair a headline with prediction market data from more than one platform, since Opinion, Limitless and Predict.Fun each run their own boards alongside Polymarket and Kalshi.

PredictionHero lines up prediction market data from all five platforms on one screen, so a story and its market are easy to read together.

Sources

• KPCW. "Utah sues prediction market site Kalshi over illegal wagers." October 21, 2026. kpcw.org
• Card Player. "Polymarket Takes New Angle in Prediction Market vs. State Court Battles." October 22, 2026. cardplayer.com
• CFTC. "CFTC Seeks Public Comment on Notice of Proposed Rulemaking Concerning Event Contracts Involving Enumerated Activities." June 10, 2026. cftc.gov
• CasinoBeats. "Sports Betting Rules Face Supreme Court Test Over Kalshi Contracts." October 11, 2026. casinobeats.com
• CoinDesk. "Another appeals court rules against prediction market provider Kalshi, says sports contracts are subject to state regulations." September 25, 2026. coindesk.com
• Crypto Briefing. "Kalshi and Polymarket hit record $2.7 billion in weekly crypto volume." October 24, 2026. cryptobriefing.com
• Federal Reserve. "Federal Open Market Committee: Meeting calendars and information." federalreserve.gov

PredictionHero aggregates publicly available prediction market data for informational purposes only. This is not financial advice. Prediction markets may not be available in all jurisdictions.