Lawmakers Call for Investigation into Suspiciously Timed Polymarket Bets on Iran War

On February 27, 2026, between 11:00 and 12:00 GMT, a cluster of 38 cryptocurrency wallets — all believed to belong to a single person — began placing bets on Polymarket that the United States would strike Iran by February 28 [1]. The wallets had been quietly loaded with cryptocurrency starting five days earlier, on February 22 [1]. When U.S. and Israeli forces launched strikes against Iran the following day in one of the most closely guarded military operations in recent history, those 38 wallets collectively earned more than $2 million [2].

That was not an isolated event. It was the most visible instance of a pattern that has now drawn bipartisan Congressional action, federal prosecutions, and a Harvard University study estimating that at least $143 million in profits on Polymarket show statistical signatures of insider trading [3].

The Trades That Started the Firestorm

The Iran-related contracts on Polymarket became the largest geopolitical wagers in the short history of prediction markets. The "US Strikes Iran" contract alone generated $529 million in total trading volume. "US Forces Enter Iran" drew $367 million. The ceasefire contract reached $255 million [4]. In total, traders wagered over $1 billion on every aspect of the U.S.-Iran conflict [5].

Source: Polymarket / CoinDesk

Data as of Apr 9, 2026CSV

Several specific trades drew intense scrutiny. One account, operating under the handle "Magamyman," placed its first trade seventy-one minutes before news of the February 28 strike broke, when Polymarket markets implied only a 17% probability of a strike [3]. When those markets resolved, Magamyman's profits totaled approximately $553,000 [6]. The account had no prior trading history on the platform.

Six newly created wallets collectively earned approximately $1.2 million by purchasing "Yes" shares in the "US Strikes Iran by February 28?" contract at prices as low as $0.10 — implying the market assessed a 10% probability of strikes at the time the bets were placed [3].

Then it happened again. On April 7, 2026, at least 50 brand-new accounts placed substantial bets on a U.S.-Iran ceasefire in the hours and minutes before President Trump announced the deal on Truth Social at approximately 6:30 PM Eastern [7]. Four newly created wallets made over $600,000 from these bets [8]. One account created the same day placed roughly $72,000 in bets at an average price of $0.088 — implying less than 9% probability — and cashed out with a $200,000 profit [9]. A third wallet, created just twelve minutes before Trump's post, placed $31,908 in "Yes" bets and earned an estimated $48,500 [9].

Source: Harvard Law / CNN / AP

Data as of Apr 9, 2026CSV

The timing was especially striking because, in the hours before the ceasefire announcement, Trump's rhetoric had escalated sharply and there were few public signals that a deal was imminent [7].

The Harvard Study: $143 Million in Anomalous Profits

In March 2026, researchers at Harvard University published a study that put these individual trades into a far broader context. Their paper, "From Iran to Taylor Swift: Informed Trading in Prediction Markets," conducted a systematic statistical screening of all Polymarket markets from February 2024 through February 2026 — a universe of over 93,000 distinct markets and nearly 50,000 unique wallet addresses [3].

The researchers combined five signals — cross-sectional bet size, within-trader bet size, profitability, pre-event timing, and directional concentration — into a composite score measuring the probability that a given wallet-market pair reflected informed trading rather than lucky speculation [3].

The results were stark. Across 210,718 suspicious wallet-market pairs, flagged traders achieved a 69.9% win rate — a result that exceeds the null distribution of random chance by more than 60 standard deviations [3]. The study estimated approximately $143 million in aggregate anomalous profit across the study period, though the researchers noted this was "almost certainly a lower bound" due to methodological limitations [3].

The suspicious trading extended well beyond Iran. The study documented cases involving predictions about Google's Year in Search results, OpenAI product launches, Taylor Swift's engagement, and the Nobel Peace Prize [3]. But the Iran-related trades — involving classified military operations — carried the most serious legal implications.

Congressional Response: Three Bills and Counting

The reaction on Capitol Hill has been swift and bipartisan. On March 26, 2026, Senators Elissa Slotkin (D-MI), Todd Young (R-IN), Adam Schiff (D-CA), and John Curtis (R-UT) introduced the Public Integrity in Financial Prediction Markets Act of 2026 [10]. The bill prohibits federally elected officials and government employees — including the President, Vice President, Members of Congress, political appointees, and executive agency employees — from using insider information to bet on prediction market contracts [10]. It would also require lawmakers and government employees to disclose any bets they place through prediction markets [10].

The same day, Senator Jeff Merkley (D-OR) and Representative Jamie Raskin (D-MD) introduced the Stop Corrupt Bets Act [11]. Representatives Adrian Smith (R-NE) and Nikki Budzinski (D-IL) followed with the Preventing Real-time Exploitation and Deceptive Insider Congressional Trading Act — the PREDICT Act — which would prohibit members of Congress, their spouses and dependent children, the President, Vice President, and certain political appointees from trading on prediction markets involving political events, policy decisions, and other government actions [12].

On April 9, Representative Ritchie Torres (D-NY), who sits on the House Financial Services Committee and its subcommittee on digital assets, sent a letter to the CFTC demanding the regulator review and investigate the ceasefire trades [7]. Senator Richard Blumenthal (D-CT) separately sent a letter directly to Polymarket, demanding the company explain why it continues to allow trades on war and violence [13].

Republican Congressman Blake Moore stated that "it is highly unlikely that these are good-faith trades. It is much more likely that these are insiders with access to information ahead of the public" [9].

The Jurisdiction Problem

Enforcing insider trading laws against Polymarket traders faces a structural obstacle. The platform is incorporated in the British Virgin Islands and historically operated offshore, blocking U.S. users from its crypto-based platform [14]. In November 2025, Polymarket received an Amended Order of Designation from the CFTC and acquired QCEX, a CFTC-licensed derivatives exchange and clearinghouse, for $112 million — giving it a legal pathway to operate within the United States on a limited basis [15]. But its offshore, crypto-based platform, which accounts for most of its activity, remains outside direct U.S. regulatory jurisdiction [14].

The CFTC's internal rules and the Commodity Exchange Act do allow the agency to regulate when "swap activities outside the United States have a direct and significant connection with activities in, or effect on, commerce of the United States" [14]. But traders can use virtual private networks (VPNs) to mask their location, and Polymarket uses proxy smart contract wallets, meaning a single user can create multiple accounts with no way for outside observers to link them [9]. Only Polymarket itself has the internal data needed to determine whether suspicious wallets belonged to new users or existing users opening additional accounts [9].

The CFTC: Enforcement Priority, Limited Resources

The CFTC has signaled that policing prediction markets is a priority. On February 25, 2026, the Division of Enforcement issued an advisory specifically addressing insider trading on prediction markets [16]. Enforcement Director David Miller stated that the Division would "aggressively detect, investigate, and, where appropriate, prosecute insider trading in the prediction markets" [17].

The legal framework rests on Section 6(c)(1) of the Commodity Exchange Act and Rule 180.1, which incorporate anti-fraud provisions and insider trading liability into commodity, futures, and swap markets under the misappropriation theory [17]. Under this theory, liability attaches when an individual possesses material non-public information and misappropriates it by trading or tipping in breach of a duty of trust and confidence owed to the source [17].

But the CFTC's enforcement capacity is strained. The enforcement division has fewer than 100 people [18]. The Chicago enforcement office — historically the frontline for complex market manipulation and derivatives cases, and the office that handled billion-dollar settlements against Binance and FTX — has gone from roughly 20 trial attorneys to effectively none [18]. The proposed fiscal year 2027 budget would bring the agency to just 650 full-time employees, up from 636 [19].

Meanwhile, federal prosecutors in Manhattan are separately exploring whether prediction market bets violate insider trading laws. The U.S. Attorney's Office for the Southern District of New York has met with Polymarket representatives to discuss how existing laws could apply [20]. As of April 2026, no American has faced federal charges related to insider trading on prediction markets [14].

The Israel Precedent

While American prosecutors weigh their options, Israel has already acted. In February 2026, Israeli authorities indicted a civilian and a military reservist for using classified military intelligence to place bets on Polymarket during Israel's operations against Iran [21]. The charges included bribery and obstruction of justice, with an undisclosed number of additional individuals arrested for placing wagers based on classified information [21].

The Israeli case established the first known criminal prosecution anywhere in the world for using classified government intelligence to trade on a prediction market — a precedent that U.S. prosecutors are closely watching [21].

Before that, the CFTC's own enforcement record on prediction markets was limited to two cases on Kalshi: a political candidate who traded on his own candidacy (fined $2,246 and suspended for five years) and a YouTube channel editor who traded based on advance knowledge of video content (fined $20,397 and suspended for two years) [16].

The OSINT Defense

Not everyone is convinced the suspicious trades reflect insider access to classified intelligence. A growing community of open-source intelligence (OSINT) practitioners — amateurs and professionals who monitor satellite imagery, shipping data, flight tracking, social media, and diplomatic signals — argue that sophisticated but legal analysis can produce highly accurate predictions about military operations [22].

OSINT analysts with AI-powered dashboards now stream real-time data to monitor military buildups, naval movements through the Strait of Hormuz, and diplomatic back-channel signals [22]. Some of them actively trade on Polymarket and Kalshi based on their analysis [22].

The distinction matters legally. If a trader identified a military buildup through publicly available satellite imagery purchased from commercial providers, their trades would be legal regardless of how accurate they were. If they received a tip from someone inside the Pentagon, those same trades could constitute a federal crime [14].

Investigators would need to prove not just that trades were well-timed, but that the trader possessed material non-public information obtained in breach of a duty of trust and confidence [17]. As Noah Solowiejczyk, a former federal prosecutor, noted, proving the source of the information — rather than just the accuracy of the bet — is the core evidentiary challenge [14].

However, the Harvard study's statistical analysis cuts against a purely OSINT-based explanation for the full scope of suspicious trading. A 69.9% win rate across more than 210,000 flagged wallet-market pairs, exceeding chance by 60 standard deviations, is difficult to explain through open-source analysis alone — especially when many of the flagged trades involved events with no obvious OSINT precursors, such as corporate announcements and celebrity news [3].

The Trump Jr. Factor

An additional layer of political complexity: Donald Trump Jr. is an investor in Polymarket through his venture capital firm, 1789 Capital, which injected "double-digit millions of dollars" into the company [23]. Trump Jr. joined Polymarket's advisory board as part of the investment and separately serves as a paid strategic adviser to Kalshi, a competing prediction market platform [23].

The proximity of the President's son to both major prediction market platforms — while those platforms host contracts on U.S. military operations ordered by his father — has drawn pointed questions from lawmakers. Representative Seth Moulton raised concerns that Trump Jr. "may have access to intelligence that isn't public yet" [23]. Polymarket has not publicly addressed questions about whether Trump Jr.'s advisory role includes access to any non-public information about the platform's operations or user data [23].

What Comes Next

The scandal is forcing a reckoning over the future of prediction markets. If investigations confirm that traders used classified intelligence to profit on Polymarket, the consequences extend beyond individual prosecutions.

One path leads toward treating prediction markets as regulated financial instruments subject to the same insider trading rules as securities and derivatives markets. The CFTC's February advisory already signals this direction, applying the misappropriation theory of insider trading to event contracts [16]. The bipartisan legislation in Congress would codify explicit prohibitions and disclosure requirements [10][11][12].

The other path leads toward banning prediction markets on sensitive geopolitical and military events — or banning them for U.S. users entirely. Senator Chris Murphy introduced the Banning Event Trading on Sensitive Operations and Federal Functions (BETS OFF) Act for exactly this purpose [22]. The Polymarket market that briefly allowed users to bet on whether a downed U.S. pilot in Iran would be rescued — before the company apologized and removed it — illustrated the moral hazard that fuels this camp [24].

Chris Ehrman, former head of the CFTC's whistleblower office, characterized the current self-regulatory approach as "whipping them with a wet noodle" [14]. The question is whether Congress and the CFTC will replace the noodle with something that has teeth — or whether the pseudonymous, offshore, blockchain-native architecture of platforms like Polymarket will continue to outrun the regulators tasked with policing them.

For now, the contracts are still trading. As of April 9, Polymarket's market on whether the U.S.-Iran conflict ends by December 31 shows a 96% probability [4]. The market for a permanent peace deal by May 31 sits at 36% [4]. And somewhere, on a blockchain, new wallets are being created.