UK Prediction Markets: Betting on Nuclear War Sparks Regulatory Debate

Prediction markets is the hottest topic at present within the gambling industry and this will be discussed in depth at the London Gaming Congress (LGC) next week with industry specialists Karen Lockwood, Sports Trading Director at Flutter, Jesse May the SVP and general Counsel at OpenBet, Andrew Cochrane the CCO from Soft2Bet and Jesse May the Head of Strategy at Matchbook.

But what is Prediction markets and how they work both in the UK and US and what dangers are there not just to traditional sports betting platforms and customers alike? Lets take a look before the LGC on the 18th March which will explain all.

Platforms enable traders to wager on outcomes of future events through a binary option model where contracts either pay out fully or expire worthless. The price directly reflects probability estimates. For instance, a bet priced at £0.52 indicates the market assigns a 65% chance of that outcome occurring.

The Financial Conduct Authority banned binary options sales to retail consumers in 2019, describing them as “gambling products dressed up as financial instruments” and warning of an “inherently flawed product”. As a result of this prohibition, major platforms including Polymarket and Kalshi cannot operate in the UK at present.

The Gambling Commission clarified that prediction market operators would fall within the definition of betting intermediaries under UK legislation. The regulator noted that whilst prediction markets may differ in presentation, their core mechanics resemble betting exchanges, which have operated in Britain since 2000.

Several licensed alternatives function within UK Prediction Markets gambling regulations. Betfair operates on identical structural principles as US platforms. Smarkets holds Gambling Commission licensing and charges 2% commission on net market profit. Spreadex offers spread betting on sports outcomes. Matchbook, also regulated by the Gambling Commission, plans to launch a prediction markets platform in 2026.

These exchanges facilitate peer-to-peer wagering where bettors can back outcomes to happen or lay them not to occur, with prices determined by supply and demand rather than bookmaker margins.

Nuclear War Betting Sparks Public Outcry and Ethical Concerns

Polymarket removed a betting market on nuclear weapon detonation after trading volume surged from £7,941.60 on Friday to £193,775.07 daily following US and Israeli strikes on Iran. The platform had promoted a 22% probability prediction on its X account before deleting the post and archiving the market. Total bets exceeded £659,152.90 before removal.

DraftKings CEO Jason Robins drew an ethical line against war-related betting UK markets, stating that wagering on people living, dying, and wars crosses inappropriate boundaries. Similarly, public figures condemned what they termed “blood gambling” as morally wrong.

Polymarket’s Iran strike market reached £420.11 million in trading volume, one of the platform’s largest exchanges. Six cryptocurrency wallets established within 24 hours of the strikes won £0.95 million. In particular, an anonymous trader collected over £317,664.05 after betting on Venezuela’s president removal hours before US troops invaded.

Israeli authorities arrested IDF reservists for using classified information to place bets on military operations. Hawaiian legislators raised insider trading concerns after nearly £500,000 in wagers appeared on words the governor would use in his state address.

Gaza betting markets exceeded £149,302.10 in trading volume after drone strikes killed four Palestinians. Public outcry intensified over platforms enabling financial gain from human suffering.

UK Gambling Laws vs US Financial Trading Models

The Commodity Futures Trading Commission classifies prediction markets as financial derivatives, granting federal oversight that supersedes state gambling regulations. This classification allows platforms to operate in all 50 states for users 18 and older. Contrarily, the Gambling Commission determined that UK Prediction Markets gambling operators would require betting intermediary licenses, identical to those held by betting exchanges since 2000.

At least 20 federal lawsuits challenge this federal framework, with state gaming regulators arguing platforms constitute “basically gambling but with another name”. Hawaii representative Scot Matayoshi raised insider trading concerns after nearly £500,000 in bets appeared on words the state governor would use in his address. The CFTC filed an amicus brief confirming its exclusive jurisdiction over commodity derivatives markets, including event contracts.

Chairman Michael Selig stated that attempts to undermine CFTC authority ignore decades of legal precedent. The commission first recognized event contracts in 1992 with Iowa Electronic Markets. On February 25, 2026, the CFTC issued an advisory declaring full authority to prosecute insider trading, market manipulation, and fraudulent practices on prediction markets.

Kalshi imposed penalties totaling £18,182.91 across two insider trading cases in 2025, suspending violators for two to five years. The company conducted over 200 investigations, froze accounts, and referred cases to law enforcement.