U.S. soldier accused of insider trading: Is the gray area of Polymarket coming to an end?

Written by: Shannon@Golden Finance

The widely rumored insider leak case of Maduro’s arrest finally comes to a conclusion.

On April 23, 2026, the U.S. Department of Justice publicly released an indictment in the Federal Court of Manhattan, capturing an American soldier who knew in advance about the U.S. plans to arrest Maduro and used this information to bet on Polymarket. He is a 38-year-old active-duty U.S. Army soldier named Gannon Ken Van Dyke.

This is the first time that the long-standing legal gray area of “predictive market insider trading” has been turned into a definitive criminal prosecution. This American soldier will be recorded in U.S. federal judicial records as the defendant in the first insider trading case involving prediction markets.

I. Core of the case: a military operation, a prediction market, and a soldier’s greed

Van Dyke is an active-duty U.S. Army soldier stationed at Fort Bragg military base in Fayetteville, North Carolina. Due to his job, he signed a confidentiality agreement promising “never to disclose any classified or sensitive information in writing, verbally, by conduct, or in any other way.”

However, starting December 8, 2025, he began participating in planning and executing a military operation codenamed “Operation Absolute Resolve”—a secret U.S. mission to capture Nicolás Maduro in Venezuela. During this period, he obtained sensitive classified information about the operation.

What did he do with this information? He bet on Polymarket.

II. Detailed timeline of transactions: 13 bets, $33,034 principal, $400k profit

December 8, 2025

Van Dyke began participating in the planning and execution of “Operation Absolute Resolve,” gaining access to classified information about the military operation.

December 14, 2025

Van Dyke created an email address unrelated to his real name in advance, preparing to conceal his identity later.

December 26, 2025

Van Dyke set up an account on Polymarket, funded it, and started trading on markets related to Maduro and Venezuela.

December 27, 2025, to January 26, 2026 (betting phase)

Van Dyke made approximately 13 trades, all betting “YES,” covering contracts such as:

• “U.S. military enters Venezuela before January 31”
• “Maduro ousts before January 31”
• “U.S. invades Venezuela before January 31”
• “Trump uses military force against Venezuela before January 31” With access to classified information, he invested about $33,034.

Early morning on January 3, 2026 (the day of the operation)

U.S. troops raided Maduro’s residence in Caracas before dawn, arresting him and his wife. Hours later, the U.S. president publicly announced the operation’s success. Subsequently, Polymarket settled multiple related contracts as “YES.”

On the same day, Van Dyke withdrew most of his illegal gains from his Polymarket account and transferred most funds into an offshore cryptocurrency vault, then deposited them into a newly created online brokerage account.

Total profit: $409,881.

January 6, 2026 (cover-up phase)

After the operation was made public, reports of abnormal trading in Maduro-related contracts on Polymarket began appearing in media and social media. Van Dyke immediately took steps to conceal his identity: claiming “unable to access registered email,” he requested Polymarket to delete his account; on the same day, he changed the registration email of his cryptocurrency exchange account to the one he had created in advance on December 14, which was not in his real name.

April 23, 2026 (indictment day)

The Department of Justice publicly released the indictment. Van Dyke is charged with three violations of the Commodity Exchange Act, one count of telecommunications fraud, and one count of illegal currency transactions, with a maximum sentence of 50 years. He appeared in the Eastern District of North Carolina federal court, and the case was subsequently transferred to Judge Margaret M. Garnett of the Southern District of New York.

In Van Dyke’s case, the current indictment shows only one defendant—Van Dyke himself. No co-conspirators or accomplices are mentioned. Van Dyke alone created the account, placed bets, transferred funds, and carried out cover-up actions.

However, investigators are still pursuing other informed individuals; no official disclosures have been made yet.

III. Summary of series of manipulations and insider trading cases on Polymarket

Van Dyke’s case is not isolated; it is the first criminal prosecution among a series of insider trading scandals on Polymarket over the past year.

Below is a complete list of documented cases so far:

Case 1: Van Dyke Case (U.S., Dec 2025 – Jan 2026) — Indicted

An active-duty U.S. Army soldier used “Operation Absolute Resolve” classified information to bet about $33,034 on Polymarket, profiting approximately $409,881, and was federally indicted on April 23, 2026.

Case 2: Israel Air Force Iran Strike Insider Case (June 2025 – early 2026) — Indicted, 2 arrests

In June 2025, an Israeli Air Force reserve major participated in a secret briefing for “Operation Rising Lion” (Israel’s 12-day war against Iran), learning the specific date of the first strike. He sent messages via WhatsApp to a civilian friend, informing him that the attack would occur on the night of June 12, and advised him to “significantly increase bets.”

This civilian opened an account on Polymarket and bet successfully on four events: Israel attacking Iran on Friday; Israel attacking Iran before the end of June 2025, etc. According to Israeli media, the two profited about $162,663 from the initial successful bets, splitting the gains.

In September 2025, the major again relayed information about Israel’s attack on Yemen, earning about $5,000. They continued collaborating, trying to bet on the timing of the next Iran strike, but abandoned the plan after social media posts about their accounts appeared, and they deleted all WhatsApp communications.

Investigations revealed at least three other Israeli Air Force members were questioned for allegedly using Iran strike classified info to bet on Polymarket. The chief investigator accused the Israeli Air Force of a “misorganized culture regarding classified info.” One crew member admitted: “The entire squadron is using Polymarket; the whole Air Force is betting.”

Two main suspects (one reserve major, one civilian) were charged with “serious security crimes,” bribery, and obstruction of justice, and are detained until the case concludes.

Case 3: Google “Year in Search” Insider Case (December 2025) — Not indicted, identity unknown

In late 2025, a trader using the pseudonym “AlphaRaccoon” made a series of precise bets around the release of Google’s 2025 “Year in Search” list, earning about $1 million within 24 hours.

This account also accurately predicted the release date of a new Google product, earning over $150k. Out of 23 trades, 22 were profitable, an unlikely coincidence, leading observers to suspect insider trading. The community widely believes the bettor was a Google insider. No arrests or indictments have been made.

Case 4: White House Iran Strike and Tariff Policy Insider (April 2025 – March 2026) — Under investigation

In February 2026, six accounts bet on “U.S. will strike Iran before February 28, 2026,” and the event occurred as predicted; on March 23, after Trump posted threats to “destroy” Iran’s power plants, futures betting on oil prices dropped sharply, then plummeted after Trump announced “very good talks” with Iran. Analysts called these trades “obviously abnormal.”

BBC investigations also revealed similar abnormal trading behaviors dating back to just three months after Trump’s second term began in April 2025, when he announced a “Tariff Liberation Day” and then delayed for 90 days; early bets on related markets were also suspicious. The identities behind these trades remain unconfirmed, and investigations are ongoing.

Case 5: OpenAI Browser Insider Bets (October 2025) — Unconfirmed

In October 2025, a new Polymarket user bet $40,000 predicting that OpenAI would launch an AI web browser by the end of the month, earning nearly $20%. The precision of the bets and timing of account creation sparked widespread suspicion of insider info, but no one has been charged.

Case 6: French Weather Sensor Hair Dryer Manipulation (April–mid-May 2026) — Confirmed market manipulation

A weather prediction contract on Polymarket relies on the temperature reading from the sole sensor at Charles de Gaulle Airport. A “malicious genius” brought a hair dryer to the airport, aimed at the sensor, artificially raising the temperature reading. This turned a low-probability extreme temperature bet (1%) into a winning outcome, successfully manipulating the contract. France has launched an investigation. See previous Golden Finance report: Polymarket’s Funny Manipulation: Hair Dryer “Blows” $34k

Case 7: Israeli Air Force Member Betting on Yemen and Iran Contracts (2025–2026) — Under investigation

According to Polymarket’s Wikipedia page, besides the main cases, another Israeli Air Force crew member was questioned for betting on Iran’s 12-day war, reportedly profiting about $46,000.

Case 8: Kalshi Congressional Candidate Betting on Self-Election — Punished

In 2026, Kalshi fined three congressional candidates and banned them from the platform for five years after they bet on “Will candidate X run?” contracts, then announced their candidacy, completing an insider arbitrage cycle.

IV. Conclusion: Is this the beginning of a crackdown on prediction market insider trading?

Polymarket CEO Shayne Coplan defended insider trading by insiders in an interview with CBS News, claiming that “having an advantage in the market is a good thing,” and that the platform “provides economic incentives for people to disclose information to the market.” While this stance has some academic basis in information efficiency, it has sparked widespread moral and legal controversy.

Manhattan federal prosecutor Jay Clayton previously issued a clear warning at a securities law conference: “Because it’s a prediction market, it doesn’t mean you’re immune from fraud charges.” Subsequently, the Manhattan Securities and Commodities Fraud Division has met with Polymarket representatives to discuss how existing laws apply to potential misconduct in the industry.

Harvard researchers estimate that, based on documented incidents, informed individuals who bet early on Polymarket may have profited around $143 million.

The Van Dyke case demonstrates two points: first, that federal law does not exclude new forms like “prediction markets”; second, that on the anonymous crypto platform Polymarket—where some believe blockchain wallets offer permanent protection—insiders underestimate the FBI’s tracing capabilities.

As Acting Deputy Attorney General Todd Blanche stated: “Widespread access to prediction markets is a relatively new phenomenon, but federal laws protecting national security information are fully applicable.”

The significance of this case lies not in the $400k profit figure but in marking the U.S. justice system’s first official move against the legal gray area of “prediction market insider trading.”

After this, anyone holding government secrets and betting on Polymarket contracts should reconsider their risk-reward ratio.