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Polymarket announced on Thursday that it has signed an exclusive partnership agreement with the Berlin digital football platform OneFootball, which will connect the prediction market to OneFootball's 200 million monthly active users and 645 million fan ecosystem about two weeks before the start of the 2026 FIFA World Cup. Polymarket will be the only prediction market partner within the OneFootball app, and competitors like Kalshi will not be allowed to enter this product.This is Polymarket's seventh major football partnership this year and the first collaboration aimed at media application distribution channels, having previously signed agreements with MLS, LaLiga, Serie A, Lazio, and DAZN.According to analysis by the Pew Research Center, since July 2024, sports have accounted for 39% of Polymarket's total trading volume. The 2026 World Cup champion market has seen a cumulative trading volume of over $1.2 billion since its launch last July, while the broader World Cup category market totals approximately $1.3 billion.OneFootball has previously launched the OFC token based on Base and Ethereum, as well as the points system BALLS. The integration with Polymarket will convert user engagement into actual transactions. OneFootball has raised over $300 million in funding, with investors including Liberty City Ventures, Animoca Brands, and Adidas.

The probability of "Selling Bitcoin before May 31" on Polymarket has dropped to 23%, a 17% decrease in 24 hours. Additionally, the probability of selling before June 30 is 67%, a 6% decrease in 24 hours; the probability of selling before December 31 is 88%, a 3% decrease in 24 hours. Today, Strategy withdrew 411 BTC from Coinbase, the same amount that was deposited the previous day, suspected to dispel rumors of selling coins.According to market news, Odaily Seer’s prophet channel continues to pay attention to the prediction market, noticing changes before pricing.

The Polymarket development team stated, "The current trading functionality is experiencing issues. The team has confirmed the cause of the problem and is deploying a fix. Real-time status updates can be viewed on the official status page."

According to Fortune, U.S. prosecutors this week charged Google software engineer Michele Spagnuolo (36 years old, Italian, currently residing in Switzerland) with insider trading.Prosecutors stated that under the username "AlphaRaccoon," he placed bets on the prediction market platform Polymarket using internal search trend data before the public release of Google's "2025 Search Annual" data, accumulating profits of over $1.2 million.The FBI identified him by tracking cryptocurrency payments. Google has suspended him and stated that using confidential information to place bets severely violates company policy.Spagnuolo is charged with violating the Commodity Exchange Act, telecommunications fraud, and money laundering, and could face years in prison.

Lookonchain posted on platform X that Michael Saylor's Strategy has just deposited 411.48 BTC into Coinbase Prime, worth 30.3 million dollars; on Polymarket, the probability of MicroStrategy selling BTC before December 31, 2026, has now reached 84%.

The prediction market platform Polymarket has disclosed that its perpetual contract product Beta version is now open for testing to a select group of users and will gradually expand access over the next four weeks. Analysts believe that this launch signifies Polymarket's further expansion from prediction markets into the field of crypto derivatives trading, continuously broadening the platform's trading scenarios and user coverage. The official details regarding the specific trading pairs and functional details supported by the perpetual contract product have not yet been disclosed.

Recently, the U.S. Department of Justice sued Google software engineer Michele Spagnuolo, accusing him of using confidential internal information from Google to engage in prediction market trading on Polymarket, illegally profiting approximately $1.2 million.Polymarket stated on the X platform that Michele Spagnuolo's insider trading behavior had long been flagged by its market integrity system, and Polymarket proactively reported the case to law enforcement, ultimately leading to Michele Spagnuolo's successful arrest. Polymarket claimed that the two insider trading cases involving arrests in the prediction market currently stem from the platform's criminal reports.Another individual arrested by the U.S. Department of Justice for insider trading in the prediction market is Gannon Ken Van Dyke, who, as a participant in the Maduro capture operation, relied on insider information to profit over $409,000 in the prediction market, and he was arrested on April 23.

The Spanish Directorate General for the Regulation of Gambling (DGOJ) has requested internet service providers to temporarily block the prediction market platforms Polymarket and Kalshi.The regulatory agency believes that both platforms are offering prediction trading products based on the outcomes of future events to local users without obtaining a gambling license in Spain, which may violate local gambling laws. The Spanish authorities stated that unlicensed platforms lack necessary consumer protection measures such as identity verification, protection for minors, and self-restriction mechanisms.Reports indicate that the relevant investigation is expected to last 3 to 4 months. During the investigation, Spanish users will receive risk warnings when accessing the relevant websites. The regulatory agency may subsequently impose fines, permanent restrictions, or require applications for local licenses.

In response to The Information's report that "Polymarket plans to require users to complete KYC due to compliance pressure," Polymarket's Vice President of Engineering, Josh Stevens, stated that the report is not true.Josh Stevens indicated that Polymarket is currently testing a new beta product that only requires some trial users to complete KYC verification during the testing period; the existing Polymarket website has not added any KYC requirements.He further stated that after the testing of this product ends, users will no longer need KYC to use it.

The prosecution materials released by the U.S. Attorney's Office for the Southern District of New York show that Google security engineer Michele Spagnuolo has been arrested and charged for allegedly using significant non-public information to bet on Google user search result-related markets on Polymarket.The prosecution materials state that Spagnuolo used Google internal tools to track the list of the most searched people in 2025 and transferred approximately 3.8 million USDC to a Polymarket address; his associated account AlphaRaccoon placed a bet that D4vd would become one of the most searched people in late November after accessing internal tools for several hours.The prosecution materials also state that AlphaRaccoon transferred 5 million USDC from the Polymarket account to a wallet and moved the funds through exchange services and privacy tools, with some of the funds ultimately entering an account at a payment processing institution in Italy. Spagnuolo is accused of profiting over 1.2 million dollars from the related transactions and currently faces charges of commodity fraud, telecommunications fraud, and money laundering.

According to a report by The Information, the prediction market Polymarket is facing increased regulatory and compliance pressure, and the platform is pushing traders to undergo identity verification (KYC) to reduce potential legal and compliance risks.The report states that although Polymarket's platform rules do not allow such activities in certain regions, some users are still participating in market trading through automated trading bots and other means, creating gray usage paths in areas like Russia. Some developers are even using tools like Telegram to organize trading traffic and expand the user base. As the platform grows and regulatory scrutiny increases, Polymarket is being forced to seek a balance between decentralized prediction markets and compliance requirements to address potential sanctions and legal risks.

According to Bloomberg, the rulings on controversial contracts on Polymarket are being dominated by a small number of UMA holders. Bloomberg's statistics show that among over 6,400 addresses that participated in Polymarket's controversial ruling votes over the past three years, only 9 large wallets contributed about half of the UMA voting power and sided with the winning side in almost all disputes.In April 2026, about 230 contracts with a total trading volume exceeding $1 billion entered the controversial ruling process, accounting for less than 1% of all contracts on Polymarket, but the frequency of disputes increased with the trading scale. Some traders criticized that this mechanism effectively grants anonymous whales "fact-determining power" driven by economic interests, while Polymarket and Risk Labs, responsible for UMA, had originally promised to improve the relevant processes, which has now been shelved.

According to Reuters, Indonesia's Ministry of Communication and Information Technology has recently banned the prediction market platform Polymarket, deeming it a form of online gambling platform for offering "bets and speculation on events that have not yet concluded," which violates local laws.Previously, Polymarket launched a betting market on when President Prabowo Subianto would "step down as president," while his term was originally set to last until 2029. This contract went live the day after Prabowo announced plans to centralize control over the export of commodities such as coal and palm oil, sparking discussions on local social media. Indonesian authorities also stated that they are investigating all social media accounts related to Polymarket.

According to BBX data, the pressure from market regulation suddenly intensified over the weekend, and institutional-level crypto derivatives product lines expanded simultaneously. The core dynamics are as follows:On May 22, James Comer (Republican, Kentucky), Chairman of the House Oversight and Government Reform Committee, officially issued investigation letters to Kalshi (privately held) and Polymarket (privately held), initiating a formal congressional investigation into insider trading on prediction market platforms. The investigation focuses on two suspicious bets: one betting on the early capture of Venezuelan President Maduro, and another betting on the direction of the Iranian conflict. Both transactions recorded unusually large amounts just hours before the related events were made public. According to media reports, the Wisconsin Attorney General has recently listed Robinhood Markets, Inc. (NASDAQ: $HOOD), along with Kalshi, Polymarket, and Crypto.com, as defendants, accusing them of providing unlicensed sports betting services in Wisconsin. This is the latest escalation of the prediction market facing legal challenges in 13 states to congressional scrutiny. Both Kalshi and Polymarket stated their willingness to cooperate with the committee's investigation, asserting that their platforms have robust anti-insider trading mechanisms.On May 23, the U.S. Securities and Exchange Commission (SEC) officially approved a proposal submitted by Nasdaq, Inc. (NASDAQ: $NDAQ) to launch cash-settled Bitcoin index options on its Philadelphia Stock Exchange, which does not involve physical delivery of Bitcoin. This product will allow institutional investors to hedge or invest in Bitcoin price fluctuations through standardized options contracts, filling a market gap for cash-settled Bitcoin index derivatives on regulated exchanges in the U.S. The timing of the approval coincided with significant fluctuations in Bitcoin over the week (with a low of $74,500 and a high rebound to $77,800), reflecting the accelerating release of genuine demand for volatility management tools in the market.

The person in charge of the prediction market Polymarket stated that the recent security incident was caused by the leakage of a private key that had been in use for six years. This private key was used for internal recharge configuration, and some funds consequently flowed to related addresses.The team has now completed the rotation of the private key and revoked all production environment permissions. The subsequent plan is to migrate all private keys to a Key Management Service (KMS), abandoning traditional storage methods. The platform and UMA contracts were not attacked, user funds are safe, and platform operations are unaffected.

Uniswap's governance proposal aims to extend the protocol fee collection and burning infrastructure to BNB Chain and Polygon, and to complete the fee activation process on Celo that was not executed due to a configuration error.The proposal includes: setting the fee receiving address for the V2 protocol on BNB Chain, Polygon, and Celo to TokenJar, and designating the V3 Factory owner on the relevant chains as V3OpenFeeAdapter; additionally, Celo will transfer the feeToSetter role and V4 PoolManager ownership to CrossChainAccount.The proposal states that fees from each chain will be aggregated into the corresponding TokenJar, and then UNI will be bridged back to the Ethereum mainnet and sent to the burn address.

According to CoinDesk, the U.S. House Oversight Committee plans to investigate prediction market platforms due to concerns that U.S. government employees may exploit insider information to profit from policy and national security events. James Comer, the chairman of the House Oversight and Government Reform Committee and a Republican congressman from Kentucky, stated on CNBC's "Squawk Box" that he is seeking internal records from the CEOs of Polymarket and Kalshi to determine whether government employees are profiting from insider information related to policy, geopolitical, and military actions, and indicated that he may push for legislation to prohibit members of Congress, government officials, and other government employees from participating in prediction markets.This investigation comes at a time when prediction markets are rapidly developing, and there is increasing scrutiny from both parties in Congress. Legislators and experts warn that this burgeoning industry poses national security risks, potential insider trading, and gambling issues.

According to Bloomberg, the U.S. Court of Appeals ruled that the enforcement lawsuits by Nevada and Washington against the prediction market platforms Kalshi and Polymarket can continue in state court, and rejected the companies' request to pause the related cases during the appeal.The court stated that Kalshi and Polymarket failed to demonstrate that the state court lawsuits would cause irreparable harm, nor did they prove that their claims regarding federal question jurisdiction had a high likelihood of success. This ruling involves the enforcement actions by Nevada against Kalshi and Polymarket, as well as the case against Kalshi by Washington.