{"id":112853,"date":"2026-05-14T03:19:28","date_gmt":"2026-05-14T03:19:28","guid":{"rendered":"https:\/\/www.europesays.com\/iran\/112853\/"},"modified":"2026-05-14T03:19:28","modified_gmt":"2026-05-14T03:19:28","slug":"dozens-of-polymarket-bets-show-signs-of-insider-trading-the-times-finds","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/iran\/112853\/","title":{"rendered":"Dozens of Polymarket Bets Show Signs of Insider Trading, The Times Finds"},"content":{"rendered":"

On the evening of Thursday, June 12, a small group of internet gamblers made a highly specific prediction on Polymarket<\/a>, the betting website that offers odds on virtually everything.<\/p>\n

Thirteen users wagered a total of $140,000 that Israel would strike Iran by the end of that week, even as the odds suggested that an attack was unlikely. Seven of the accounts had been opened just days earlier. Another had a history of bets related to military action against Iran \u2014 and had won money on all of them.<\/p>\n

Israel attacked Iran later that day, netting the accounts more than $600,000 in profits.<\/p>\n

The explosive growth<\/a> of prediction markets like Polymarket has rattled the political world over the last year, fueling concerns about a new kind of insider trading by military leaders and government officials with access to confidential plans. A military reservist was recently indicted in Israel<\/a> for a scheme to bet on the June strike, while a U.S. Army Special Forces soldier was accused<\/a> last month of wagering on the capture of Nicol\u00e1s Maduro, the president of Venezuela.<\/p>\n

Those bets represent only a slice of the suspicious activity on Polymarket. A New York Times examination found that more than 80 Polymarket users have placed bets with suspicious characteristics, including 38 whose well-timed wagers have drawn little or no public attention. They won money across nearly 30 topics dating back to at least 2024, from Israel\u2019s strike on Iran last year to the regulatory debate over cryptocurrency trading.<\/p>\n

The Times\u2019s examination also revealed previously unreported red flags in some of the high-profile bets that have drawn scrutiny. The findings were based on a series of warning signs that hint at insider trading without proving it definitively. Those signals include long-shot bets that pay off, well-timed wagers by recently opened accounts and bets by users who gamble on only a few related topics without ever losing, among other considerations.<\/p>\n

The Times identified more than 11,000 Polymarket accounts that exhibited some combination of those characteristics, then manually reviewed the most striking cases, comparing the users\u2019 trading histories against overall prediction market activity. Many of the examples involved military operations, which have attracted a surge of betting this year.<\/p>\n

While the accounts The Times examined make up a small portion of Polymarket\u2019s users, they show how suspicious wagers can unfold on the site and highlight the vulnerability of prediction markets to manipulation. Polymarket\u2019s trading data is publicly visible, which makes it possible to reconstruct betting patterns with second-by-second accuracy.<\/p>\n

One of the highest-profile cases occurred at the start of the year, when the idea that Mr. Maduro would soon be ousted as Venezuela\u2019s leader seemed unlikely. The odds on Polymarket reflected that doubt, sitting at around 7 percent. Then something unexpected happened: The United States swept into Venezuela on Jan. 3 and arrested Mr. Maduro.<\/p>\n

Somehow, one user appeared to know the arrest was coming. The account had placed large bets on Jan. 1 and Jan. 2 predicting that Mr. Maduro would be \u201cout\u201d as Venezuela\u2019s leader before the end of the month. When Mr. Maduro was captured on Jan. 3, the user pocketed more than $400,000. Prosecutors later charged<\/a> Master Sgt. Gannon Ken Van Dyke, the special forces soldier, with using classified information to make that bet.<\/p>\n

A similar betting pattern played out when Polymarket offered odds on whether the United States would announce a cease-fire in the war with Iran by April 7.<\/p>\n

At least seven users placed bets in the hours before President Trump announced the agreement in a Truth Social post on April 7. Collectively, they won more than $1.4 million, including two users who each walked away with over $400,000 in profits.<\/p>\n

The Times also found warning signs in areas unrelated to America\u2019s foreign policy. In 2024, a user created a Polymarket account and placed a single long-shot bet that a financial product tied to the cryptocurrency Ether would be approved by the Trump administration. A month later, the user withdrew $50,000 in profits after regulators blessed the product.<\/p>\n

Based on the public data alone, it is impossible to conclude whether these users were insiders who had access to nonpublic information. Many sophisticated bettors use automated bots to place well-timed wagers that may appear suspicious at first glance, while some prediction market traders pride themselves on making giant bets against the odds that occasionally pay off.<\/p>\n

But The Times\u2019s examination adds to evidence suggesting that Polymarket has been exploited by users with information that is not publicly available.<\/p>\n

Last month, the nonprofit Anti-Corruption Data Collective released a report<\/a> about Polymarket that found heavy bettors on underdog outcomes \u2014 an event with at most a 35 percent likelihood \u2014 won more than half the time on topics related to the military, calling it a sign of \u201cpotential insider trading.\u201d Similar wagers on other topics were profitable only 14 percent of the time, the report found.<\/p>\n

Polymarket has pledged to combat insider trading, saying it has \u201cno place\u201d<\/a> on the platform. A company spokeswoman said the firm \u201ccontinuously monitors its markets for suspicious activity and regularly engages with relevant authorities when appropriate.\u201d<\/p>\n

Polymarket and its main rival, Kalshi, are the most popular prediction markets. But they differ in important ways. Polymarket\u2019s main platform processes wagers in crypto, creating a public record of transactions. Much less data is available about the bets on Kalshi, which announced<\/a> in February that it had opened more than 200 insider-trading investigations resulting in over a dozen \u201cactive cases.\u201d<\/p>\n

Robert DeNault, Kalshi\u2019s head of enforcement, said in a statement to The Times that insider trading was banned on the platform. \u201cWe surveil, investigate and punish it,\u201d he said.<\/p>\n

Coordinated Activity<\/p>\n

For years, prediction markets occupied a legal gray area in the United States. A tiny financial agency, the Commodity Futures Trading Commission, barred<\/a> Polymarket from serving U.S.-based customers in 2022, while Kalshi battled those regulators in court for authorization to offer bets on congressional elections.<\/p>\n

Now the landscape is shifting in these firms\u2019 favor.<\/p>\n

Kalshi won its case in October 2024, paving the way for election betting in the United States. Within a year, Polymarket secured regulatory approval to start offering some services<\/a>, though the majority of its betting markets, including wagers on military action, are still available only overseas. Sergeant Van Dyke gained access to the website using a virtual private network, a tool that disguises a user\u2019s location, according to court papers.<\/p>\n

Together Kalshi and Polymarket draw<\/a> $25 billion in monthly trading volume, up from less than $2 billion a year ago, an explosion of popularity that poses a challenge to regulators.<\/p>\n

Under federal law and agency regulations<\/a>, insider trading on prediction markets is prohibited, though what qualifies as an offense is a complex legal question. Some advocates<\/a> for the sites argue that certain insiders can help generate more accurate forecasts, making prediction markets a useful source of information.<\/p>\n

In a CBS \u201c60 Minutes\u201d interview last fall, Shayne Coplan, Polymarket\u2019s chief executive, called<\/a> insider trading \u201can inevitability\u201d that comes with \u201ca lot of benefits,\u201d while stipulating that trading platforms need to draw an ethical line somewhere.<\/p>\n

\u201cWhat\u2019s cool about Polymarket is that it creates this financial incentive for people to go and divulge the information to the market,\u201d he said<\/a> at an Axios conference in November. \u201cOr someone tells someone, and then the market responds.\u201d<\/p>\n

But potential insider activity does not always create a clearer picture for the public, The Times found. Someone with insider knowledge can employ a range of strategies to accumulate large, profitable positions without moving the needle on the odds.<\/p>\n

In January 2025, a Polymarket user who regularly wagered on Washington politics began betting that President Joseph R. Biden Jr. would pardon his brother James Biden. The user placed 53 separate bets worth more than $20,000, even as the odds declined.<\/p>\n

Less than 40 minutes after the user\u2019s final bet on Jan. 20, the White House announced that Mr. Biden had signed a last-minute pardon for his brother. The user earned $200,000, cashed out and has not bet since.<\/p>\n

The Times\u2019s review also found possible coordination among Polymarket accounts that placed bets at identical times. Such activity can signal that an individual user deployed automated bots to avoid detection, obscuring a large position across many accounts.<\/p>\n

A possible example emerged on Feb. 27, when Mr. Trump at 3:38 p.m. gave the order to strike Iran while he was aboard Air Force One<\/a>. Over the next few hours, at least 27 accounts placed thousands of dollars of simultaneous bets predicting that the United States would attack by Feb. 28. When the strike began around 1 p.m. on Feb. 28, the accounts collected profits of more than $700,000.<\/p>\n

Much of the suspicious activity has been concentrated on the conflicts in the Middle East. Of the 27 betting topics that The Times flagged, 12 focused on the U.S.-Israeli war with Iran.<\/p>\n

In February, Israeli authorities charged the military reservist<\/a> with using nonpublic information to help an accomplice make more than $100,000 betting on Polymarket about the timing of Israel\u2019s attacks on Iran and Yemen.<\/p>\n

\u201cIt\u2019s happening now,\u201d the soldier texted his accomplice, just as military planes took off for the June attack, according to the indictment.<\/p>\n

In court this month, the reservist\u2019s lawyer argued that his client\u2019s unit in the Israeli Air Force had a penchant for gambling, a risk-taking impulse that was common in the military.<\/p>\n

An Israeli military representative said the defense forces had taken steps to \u201cstrengthen oversight and control systems\u201d since the Polymarket bet was exposed.<\/p>\n

Political Ripples<\/p>\n

The rise of suspicious trading has caused alarm in Washington.<\/p>\n

The Senate passed a resolution last month barring senators and their staff members from using prediction markets. In April, Mr. Trump said<\/a> he was \u201cnever much in favor\u201d of the sites and lamented that \u201cthe whole world unfortunately has become somewhat of a casino.\u201d<\/p>\n

Within days, he reversed himself<\/a>, noting that people working in the prediction business are \u201cpretty happy with it.\u201d Mr. Trump\u2019s eldest son, Donald Trump Jr., is an adviser to Kalshi and Polymarket, and the family\u2019s social media company, Trump Media, has announced plans<\/a> to offer a prediction market.<\/p>\n

The scrutiny on prediction markets has put a spotlight on the Commodity Futures Trading Commission. Historically, the agency has overseen markets for oil, agricultural goods and certain financial instruments known as swaps. Because prediction market bets are classified as swaps, the agency has argued<\/a>, the sites fall under its purview as well. But the C.F.T.C. has a relatively small staff and a spotty record of enforcement that has drawn<\/a> skepticism<\/a> from critics.<\/p>\n

Michael Selig, the agency\u2019s chairman, is an outspoken prediction market enthusiast who has hopscotched the country<\/a> giving speeches about the technology\u2019s potential to rival traditional media as an information source.<\/p>\n

\u201cIt\u2019s really important that we protect these markets here in the U.S.,\u201d he said at a crypto conference in March.<\/p>\n

In a statement to The Times, Mr. Selig said the agency had a \u201crenewed focus on efficiency\u201d and was using artificial intelligence to bolster its capabilities. \u201cThere are no gaps in our ability to fulfill our mission,\u201d he added.<\/p>\n

As concerns have intensified, Polymarket has promised to monitor for misconduct. But its public pronouncements are sometimes contradictory.<\/p>\n

Three weeks before the Special Forces soldier was indicted, Mr. Coplan, Polymarket\u2019s chief, was interviewed at Harvard Business School, where he was asked about suspicious activity in the Maduro betting market.<\/p>\n

\u201cFor the Maduro one, it\u2019s actually a very funny story \u2014 it\u2019s not what it seems,\u201d Mr. Coplan said<\/a>. \u201cIt\u2019s just more of a fluke than it is some sort of exciting thing.\u201d<\/p>\n

Once the federal charges were announced, Mr. Coplan told a different story, writing on social media<\/a> that Polymarket had \u201cflagged this, referred it, and cooperated throughout the process\u201d with the Justice Department.<\/p>\n

In April, Kalshi said it had unearthed<\/a> three examples of insider trading \u2014 all congressional candidates who had placed bets on their own races.<\/p>\n

In one case, Kalshi said, a Democratic candidate for U.S. Senate in Virginia placed a bet that he would join the race, a decision he clearly controlled. Kalshi fined him more than $6,000 and gave him a five-year ban from the platform.<\/p>\n

Because prediction market data is public, the hunt for insider trading has also become a social media phenomenon.<\/p>\n

On X, users post screenshots of prediction markets with strange patterns or bets from new accounts. Some traders have built strategies around identifying insiders and then copying suspicious wagers before other bettors catch on.<\/p>\n

One market that was flagged on social media centered on a prominent internet sleuth, who announced<\/a> in February that he was preparing a detailed investigation into an unnamed crypto company whose employees had \u201cabused internal data.\u201d<\/p>\n

Speculators on Polymarket started betting on who the sleuth\u2019s target might be. Between Feb. 24 and Feb. 26, an anonymous user who had just joined Polymarket bet more than $65,000 that it was Axiom, a crypto trading firm. (Axiom did not respond to a request for comment.)<\/p>\n

The wager was correct. On Feb. 26, the sleuth accused<\/a> Axiom employees of insider trading.<\/p>\n

It\u2019s unclear who made the bet. The sleuth said that he had been \u201cretained\u201d to investigate Axiom, and that he had reached out to the firm before posting his findings.<\/p>\n

The anonymous bettor walked away with $411,647 in profits.<\/p>\n

Johnatan Reiss contributed reporting.<\/p>\n","protected":false},"excerpt":{"rendered":"On the evening of Thursday, June 12, a small group of internet gamblers made a highly specific prediction…\n","protected":false},"author":2,"featured_media":112854,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[22666,29725,39116,5483,15602,34,39114,39119,39115,39113,39118,39117,1048,39112],"class_list":{"0":"post-112853","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-iran","8":"tag-commodity-futures-trading-commission","9":"tag-computers-and-the-internet","10":"tag-coplan","11":"tag-defense-and-military-forces","12":"tag-insider-trading","13":"tag-iran","14":"tag-kalshi-inc","15":"tag-michael-s","16":"tag-polymarket-adventure-one-qss-inc","17":"tag-regulation-and-deregulation-of-industry","18":"tag-selig","19":"tag-shayne","20":"tag-social-media","21":"tag-virtual-currency"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@iran\/116570774703574935","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/iran\/wp-json\/wp\/v2\/posts\/112853","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/iran\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/iran\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/iran\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/iran\/wp-json\/wp\/v2\/comments?post=112853"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/iran\/wp-json\/wp\/v2\/posts\/112853\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/iran\/wp-json\/wp\/v2\/media\/112854"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/iran\/wp-json\/wp\/v2\/media?parent=112853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/iran\/wp-json\/wp\/v2\/categories?post=112853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/iran\/wp-json\/wp\/v2\/tags?post=112853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}