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The LeadOn his show Last Week Tonight, John Oliver delivered a scathing critique of prediction markets, calling out companies like Kalshi and Polymarket for allowing bets on serious events while avoiding gambling regulations through political connections and semantic loopholes.The Rise of Prediction MarketsPrediction markets have seen exponential growth in recent months, with billions of dollars wagered weekly on questions ranging from geopolitical events like "will traffic in the strait of Hormuz return to normal" to trivial matters like "will Mr Beast say 'feastable'." This surge is largely due to aggressive marketing by the two dominant players, Kalshi and Polymarket, which have opened the door to what Oliver describes as a "free-for-all" of questionable betting opportunities.The Financial FacadeBoth companies claim they are not gambling sites but financial exchanges offering "event contracts" that allow people to hedge against future risks. Kalshi CEO Tarek Mansour argued his platform was "very important" because it allowed people to bet on student loan forgiveness. Oliver mocked this claim, showing clips of people betting on phrases Donald Trump would say in speeches, calling it "taking advantage of a sundowning geriatric's rapidly declining verbal abilities" rather than legitimate financial hedging.Political Connections and Regulatory LoopholesThe companies have successfully avoided gambling regulations by insisting they are financial exchanges, allowing them to operate in states where gambling is illegal and bypassing age requirements and taxes. Oliver highlighted their strong connections to the Trump family, noting that Donald Trump Jr is an investor and unpaid adviser to Polymarket and a paid adviser to Kalshi. These connections have paid off, as the Trump administration has effectively stripped the Commodity Futures Trading Commission (CFTC) of its power to regulate these markets, leaving only one commissioner—Michael Selig, a prediction markets advocate—in charge.Societal Impact and Ethical ConcernsOliver expressed deep concern about the ethical implications of prediction markets, particularly when people bet on tragic events like "will Nancy Guthrie's kidnapper be arrested by 28 February." He noted the "chilling" reality that people might be using insider information to bet on life-or-death events, citing a case where someone made $400,000 after betting on the capture of Nicolás Maduro. Oliver also criticized news organizations for "laundering these companies' reputations" by presenting their odds as actual news.Future Outlook and Calls for ReformOliver called for basic guardrails to be put in place to regulate prediction markets, expressing little faith in the current Supreme Court or Congressional action given the Trump family's involvement. He suggested that individuals should reconsider using these markets for gambling, noting they are statistically likely to lose money. Ultimately, Oliver warned against a society where "every aspect of our lives" becomes a bet, where people engage with news not for its meaning but because they have money riding on it.

The Prediction Platform's Meteoric Rise Polymarket, the online prediction platform that hosts bets on events such as the Iran war, is in talks to raise $400m (£296m) at a valuation of up to $15bn. This latest fundraising round would represent a significant two-thirds increase on the company's previous valuation, underscoring the rapid growth and increasing influence of prediction markets in the financial landscape. Geopolitical Betting Drives Platform Growth The company has gained notoriety in recent months over wagers placed on the Middle East conflict, including on the timing of US-Israel strikes against Iran, and on a US-Iran ceasefire, some of which appeared to bear signs of insider trading. During this period, Polymarket has experienced a massive increase in volume, with more than $1bn a week now traded on its platform. The platform operates on a commission-based fee structure, though geopolitical and world events markets are "fee-free." Financial Trajectory and Strategic Investments Polymarket's valuation has been increasing rapidly, having achieved a $1bn price tag in June last year after Peter Thiel's Founders Fund led a $200m round. This was followed months later by the owner of the New York stock exchange, Intercontinental Exchange, pledging $1bn at a valuation of $9bn. The NYSE's owner has since invested a further $600m in Polymarket, with plans to become a "global distributor" of the platform's data, using bets to provide "sentiment analysis" to investors. Datafeeds Reshaping Financial Markets Datafeeds from Polymarket and other online prediction markets have increasingly been shaping trades, including in oil markets. The platform's forecasts are being used by more traditional financial institutions to inform their strategies, creating a new intersection between prediction markets and conventional finance. This integration has raised questions about the potential for prediction markets to influence larger financial systems and whether they might create distortions in market behavior. Controversies and Regulatory Challenges Despite its growth, Polymarket has faced significant scrutiny. Numerous bets placed by anonymous accounts have given rise to speculation that people are taking advantage of insider information. The Israeli authorities earlier this year arrested several people and charged two on suspicion of using classified information to make Polymarket bets. A Guardian investigation found that thousands of people in online communities are strategizing on how to profit from conflict through betting, with some attempting to pressure institutions to change their reporting to align with their wagers. The Future of Prediction Markets As prediction markets continue to gain mainstream acceptance, Polymarket's latest funding round signals growing confidence in the sector's potential. However, the platform faces ongoing challenges regarding regulatory oversight, market manipulation, and the ethical implications of monetizing predictions on sensitive geopolitical events. The increasing integration of Polymarket data into financial decision-making processes suggests that prediction markets are evolving from niche gambling platforms to influential data sources that could shape market behavior in increasingly significant ways.

Sixteen Polymarket accounts each earned more than $100,000 by correctly forecasting the U.S. airstrike on Iran on 27 February, while a single user, known as “Magamyman,” pocketed over $550,000 by betting on the removal of Ayatollah Ali Khamenei moments before his death in an Israeli strike.Just before former President Donald Trump announced a temporary cease‑fire on 7 April, traders placed a staggering $950 million wager that oil prices would fall – a bet that proved accurate.These synchronized bets, which also included $855,000 in contracts predicting the 27 February strike and $580 million in oil‑futures positions placed minutes before Trump’s “productive talks” comment on 23 March, have raised alarms about possible insider information being used in online prediction markets.Platforms such as Polymarket and Kalshi now allow contracts on virtually any news event, blurring the line between traditional sports betting and financial speculation. The ease of accessing commodity derivatives, especially oil futures, amplifies the potential for profit – and for regulatory scrutiny.Law professors Joshua Mitts (Columbia) and Andrew Verstein (UCLA) note that while the trades could be “lucky,” the timing and scale suggest “hallmarks of suspicious activity” that merit investigation. The Commodity Futures Trading Commission (CFTC) has reportedly opened inquiries into the March 23 and April 7 oil‑futures trades, though it has not publicly confirmed the probes.Regulators face a dilemma: existing legislation may be inadequate for the technological realities of blockchain‑based prediction markets. CFTC Commissioner Michael Selig, appointed by the Trump administration, warned that “we will find you and you will face the full force of the law,” yet the agency cannot issue new rules until it has a full five‑member commission.State‑level challenges further complicate oversight. Nevada temporarily banned Kalshi for operating without a gambling license, while Arizona filed criminal charges over election‑betting contracts. Kalshi argues that the CFTC holds exclusive jurisdiction over such markets.A recent academic study screened over 200,000 “suspicious wallet‑market pairs” from February 2024 to February 2026, finding that traders in this cohort achieved a near 70% win rate, generating roughly $143 million from well‑timed bets on events ranging from the capture of former Venezuelan leader Nicolás Maduro to celebrity engagements.Congressional leaders have responded with legislation aimed at prohibiting federal employees, including members of Congress and White House staff, from participating in prediction‑market contracts tied to political or policy outcomes. However, experts caution that the legal framework for insider trading in commodity futures remains under‑developed, making enforcement challenging.As prediction markets continue to intersect with geopolitical events, the risk of market distortion grows. “When financial bets are based on classified military information, it undermines both market integrity and public trust,” warned Verstein, highlighting the broader implications for the real economy.

The online prediction market platform Polymarket has seen a surge in users betting on global events, including war and politics. With over $500,000 staked on whether Russia will capture Kostyantynivka, Ukraine, and millions more bet on the US-Iran conflict, the platform's influence is growing.Users, often anonymous and operating in groups on messaging apps like Discord, debate and strategize on how to profit from these events. Some critics argue that this gamification of war is immoral and can lead to manipulation of broader markets.Polymarket views itself as a source of truth, providing data on the future by allowing the public to bet on it. The platform has gained attention from major investors, including the Intercontinental Exchange, which has invested up to $2bn.However, concerns arise about the platform's decision-making process, which relies on an anonymous group of people holding a cryptocurrency token called UMA. This has led to disputes over the outcome of events and accusations of corruption.Experts warn that Polymarket's influence could extend beyond the platform, potentially manipulating larger markets and affecting institutions and pension funds.

At least 50 new accounts on Polymarket, a prediction market platform, made substantial bets on a US-Iran ceasefire on Tuesday, resulting in profits of hundreds of thousands of dollars. These bets were placed despite escalating rhetoric from Donald Trump and few signals of an imminent deal.An analysis of blockchain data shows that one wallet, created on Tuesday at 10am ET, placed roughly $72,000 in bets at an average price of 8.8¢ and cashed out for a profit of $200,000. Another wallet, which joined the platform on April 6, won $125,500.The trading pattern of newly created accounts placing strategic, well-timed bets has raised questions about insider trading and the need for regulation in prediction markets. Bipartisan groups of senators and representatives have introduced legislation to broaden the definition of insider trading to include prediction markets.“This is why these markets need regulation,” said Todd Phillips, a professor at Georgia State University. “We can’t have people trading with inside information and expect other traders are going to be OK being in these markets.”Polymarket and other industry players, including Kalshi, have acknowledged the need to broaden the definition of insider trading on their platforms.

A federal appeals court has ruled that New Jersey gaming regulators cannot prevent Kalshi from allowing people in the state to use its prediction market to place financial bets on the outcome of sporting events. The decision marks a significant victory for Kalshi and similar prediction market operators.The three-judge panel of the Philadelphia-based third US circuit court of appeals ruled 2-1, finding that the US Commodity Futures Trading Commission (CFTC) has exclusive jurisdiction over the sports-related event contracts that Kalshi allows people to trade on its platform.This ruling is a major setback for states like New Jersey, which had argued that firms like Kalshi were operating without required state licenses, in violation of gaming laws, including bans on wagers by those under 21. New Jersey had sent Kalshi a cease-and-desist letter last year, stating that its listing of sports-related event contracts on its platform violated state gambling laws.Kalshi had sued the state, arguing that its event contracts qualify as “swaps”, a type of derivative contract, that under the Commodity Exchange Act can only be regulated by the CFTC, which had granted the company a license to operate a designated contract market (DCM).The ruling was in line with the position advanced by the CFTC under Donald Trump’s administration. The regulator sued Arizona, Connecticut, and Illinois last week to prevent them from pursuing what it called unlawful efforts to regulate prediction markets.“Congress gave the CFTC exclusive jurisdiction over trades on DCMs, and this decision affirms the goals of Congress,” said Brooke Nethercott, a CFTC spokesperson.However, US circuit judge Jane Richards Roth dissented, saying Kalshi was facilitating gambling and that its “offerings were virtually indistinguishable from the betting products available on online sportsbooks, such as DraftKings and FanDuel”.The New Jersey attorney general's office said it was evaluating its options, including potentially asking the full third circuit to rehear the case.

Online betting platform Polymarket has come under fire for allowing users to wager on the fate of US pilots shot down in Iran. The platform has since halted the bets and promised to investigate how they were allowed to happen. The controversy began when US Representative Seth Moulton publicly denounced the practice, calling it 'DISGUSTING' that people were betting on the pilots' rescue while search efforts were still underway. Moulton, a veteran of the US Marine Corps, expressed his outrage on social media platform X. The incident involved an F-15E Strike Eagle jet shot down by Iranian military forces, with one pilot rescued within seven hours and the other rescued on Sunday, as announced by Donald Trump on his Truth Social platform. Polymarket initially allowed users to bet on the timing of the rescues, with most wagers predicting they would occur by Saturday. However, after Moulton's criticism, the platform quickly removed the market, stating it did not meet their integrity standards and vowed to investigate. Moulton did not stop there, calling on Polymarket to deactivate hundreds of other war-related wagers, accusing the company of having 'severely lacking' integrity standards. He also mentioned that Donald Trump Jr, the president's oldest son, is an investor in Polymarket, which Moulton referred to as a 'dystopian death market'. This incident is not the first time Polymarket has faced scrutiny. In March, some users generated international headlines by sending threatening messages to an Israeli journalist after betting on a missile strike near Jerusalem. The controversy surrounding prediction markets like Polymarket has drawn congressional attention, with lawmakers introducing proposals to ban betting on certain topics, including sports, government actions, and events 'ripe for rigging'. US Senator Chris Murphy stated that such markets risk 'corrupting the soul of America' by turning life-and-death events into financial products.

The US government has taken legal action against Illinois for attempting to regulate the rapidly growing online prediction market industry. The lawsuit, filed in Chicago federal court, claims that Illinois' efforts to shut down so-called designated contract markets regulated by the Commodity Futures Trading Commission (CFTC) are unlawful.Online prediction markets allow users to bet on a wide range of events, from Oscar winners to military conflicts. These platforms classify their offerings as 'event derivatives,' which fall under federal commodities law and are overseen by the CFTC. This classification allows them to operate in all 50 states for users 18 and older.Illinois introduced legislation earlier this year that would impose strict regulations on prediction markets, including an effective ban on sports-related trades, advertising restrictions, and age verification measures. The CFTC argues that this legislation intrudes on its exclusive authority to regulate national swaps markets.The lawsuit is the first by the CFTC to block state gaming regulators from policing operators of prediction markets. It cites cease-and-desist letters sent by the Illinois gaming board to companies like Kalshi, Polymarket, and Crypto.com, alleging violations of Illinois gambling laws.The federal lawsuit names Illinois Governor JB Pritzker and Illinois Attorney General Kwame Raoul as defendants. The case highlights the ongoing debate over the regulation of prediction markets, with some arguing they are essentially gambling operations and others seeing them as federally regulated financial exchanges.Congress is also considering federal measures to regulate prediction markets, including a bipartisan bill introduced by US senators that would ban federally regulated platforms from allowing wagers on sporting events.

The global oil market is being significantly influenced by online prediction platforms such as Polymarket, with energy traders using data from these platforms to inform their multimillion-dollar trades. Market experts have noted that Polymarket's datafeeds are being used to create algorithms that impact trading in the global Brent crude futures market. The growing reliance on Polymarket has raised concerns that anonymous account holders may be using insider knowledge to place bets, potentially influencing pricing in the global oil market. One energy trader noted that Polymarket had become the best predictor of the oil market's direction since the US-Israel war with Iran triggered a global oil crisis. Ajay Parmar, head of oil trading at ICIS, stated that betting markets have a long history of strong prediction accuracy, and traders are increasingly turning to Polymarket for market indicators. Tim Skirrow, head of derivatives at Energy Aspects, also confirmed the adoption of prediction markets as a trading tool, noting that any data with alpha is considered in modern markets. The US investment bank Goldman Sachs has included analysis of prediction-market data in its oil market research, and the Intercontinental Exchange (ICE) has launched a trading tool providing a data feed of Polymarket's prediction markets to help traders make informed decisions. However, not all commodity traders are convinced by Polymarket's track record in predicting market-moving events. One trading analyst noted that Polymarket has made bad calls during the crisis, and that hedge funds may be more interested in the platform than traditional traders.