Google Engineer’s Polymarket Bet Opens a New Insider Front

A Google engineer turned the company’s most-searched list into a private payout, and federal prosecutors say that crossed into insider trading. Michele Spagnuolo, a 36-year-old staff information security engineer at Google, was charged this week in Manhattan with commodities fraud, wire fraud, and money laundering after allegedly clearing more than $1.2 million on the prediction market Polymarket using confidential search data.

That is the version moving across screens this week. Less noticed is the timing: Spagnuolo’s case is the second federal insider-trading action tied to Polymarket bets in a matter of weeks, and prosecutors are now treating prediction-market wagers as commodities a person can be jailed for trading on a tip.

How a ‘Year in Search’ Leak Became a $1.2 Million Bet

Between October 15 and December 4 last year, Spagnuolo placed a run of wagers under the username AlphaRaccoon, according to the unsealed federal complaint in Manhattan. The markets all pointed at one thing: Google’s annual Year in Search list, the curated ranking of top trending queries the company publishes each December.

Prosecutors say he did not have to guess. As a staff information security engineer, Spagnuolo could open an internal tool stamped “Google Confidential” that showed the non-public rankings before they went live. He then bought positions on markets keyed to those exact outcomes and waited for the public reveal to settle them in his favor.

The complaint describes a near-perfect record across more than 23 event contracts. Among the calls the account got right:

• the singer known as d4vd would be the most-searched person of the year
• New York political figure Zohran Mamdani would land in the top five most-searched people
• Squid Game would be the year’s number one searched television show

All told, the AlphaRaccoon account staked roughly $2.75 million across the markets, then collected once the rankings became official. The counterparties on the other side of those trades were betting blind. He was not.

The Charge That Treats a Polymarket Wager Like a Commodity

What lifts this above a workplace scandal is the law prosecutors reached for. Polymarket contracts are “event contracts,” and under the Commodity Exchange Act (CEA, the federal statute governing futures and derivatives) the Commodity Futures Trading Commission (CFTC, the federal derivatives regulator) treats them as commodity products. Trading them on misappropriated confidential information becomes commodities fraud.

Spagnuolo faces one count of violating the Commodity Exchange Act, which carries up to 10 years in prison, one count of wire fraud at up to 20 years, and one count of money laundering at another 20. The CFTC filed a parallel civil complaint seeking restitution, disgorgement of profits, civil penalties, trading and registration bans, and a permanent injunction.

“Corporate insiders cannot use confidential business information to turn a profit in our markets,” said Jay Clayton, the US Attorney for the Southern District of New York, who noted the engineer violated duties owed to his employer. The agency’s civil filing is laid out in the CFTC enforcement action on search-related event contracts.

The exposure adds up fast:

• $1.2 million in approximate profit, the figure that opened the case
• 23 event contracts traded with what the CFTC called near-perfect accuracy
• 50 years of combined maximum prison time across the three counts

The Second Insider Case in Weeks

This arrest did not happen in a vacuum. Roughly two weeks earlier, prosecutors charged Gannon Ken Van Dyke, an active-duty US Army soldier, with felonies for allegedly trading Polymarket contracts on classified knowledge of a sensitive military operation. His account, funded in late December, profited about $409,881 on markets tied to Venezuela and its president, Nicolas Maduro.

That earlier case was the first time the CFTC used the so-called Eddie Murphy Rule, a Dodd-Frank provision (nicknamed after the film Trading Places) that bars trading on misappropriated government information. Spagnuolo’s case extends the same logic to a private company’s data, making it the second federal insider-trading case aimed at Polymarket traders in a single month.

The split between the two complaints is the point worth holding onto, and it is spelled out in a recent Congressional Research Service brief on prediction markets and insider trading law.

Taken alone, either could read as a fluke. Side by side, they look like a strategy.

Why Prediction Markets Reward an Informational Edge

Prediction markets pay out on whether real-world events happen. That design rewards anyone who already knows how the event will land. A securities trader needs to forecast a stock; a prediction-market trader with the right access can simply know the answer and buy the cheap side before everyone else catches up.

Securities law spent decades building an insider-trading framework around exactly that temptation. Event-contract markets grew up with almost none of it, which is part of why the gap drew Washington’s attention. Both Polymarket and rival platform Kalshi moved earlier this spring to tighten internal controls against insider activity as scrutiny mounted.

The Commission will not tolerate fraud, manipulation, or insider trading, regardless of the technology or platform that is used.

That line came from Michael Selig, the CFTC chairman, in the agency’s statement on the Spagnuolo action. It reads less like a comment on one engineer and more like a notice to a market that has been operating in a regulatory gray zone.

Circle and the USDC Rail Beneath the Bets

Every one of those wagers settled in USDC (USD Coin, a dollar-pegged stablecoin issued by Circle). The platform runs its trading, order placement, and settlement on the token, and in February, Circle and Polymarket announced a partnership to swap a bridged version, USDC.e, for native USDC across the board.

That choice cuts two ways. Stablecoin settlement keeps the market liquid and dollar-priced for traders around the world. It also leaves a permanent on-chain paper trail, because every position and payout sits on a public blockchain that investigators can read.

So the same transparency that platforms sell as a feature also hands prosecutors a ledger. A trader cannot quietly unwind a suspicious streak when the wins are timestamped and visible to anyone with a block explorer.

What Regulators Are Drafting Before the Rules Land

The enforcement is arriving ahead of the rulebook. Under Selig, the CFTC said in January it would pursue prediction-market rulemaking, published an advance notice of proposed rulemaking in March, and closed the public comment window in late April.

Congress has been pushing in the same direction. Democratic lawmakers urged the agency to write rules curbing insider trading on these platforms and to consider banning certain categories of event contracts outright, a debate mapped in the research service’s overview of prediction market policy issues facing Congress.

For now, the agency is filling the vacuum the only way it can move quickly, through cases rather than codes. The two complaints establish a working definition of what counts as cheating before any formal standard exists.

If the rulemaking lands with explicit insider-trading provisions, the Spagnuolo and Van Dyke filings become the template every prediction-market trader gets measured against. If it stalls, the CFTC has already shown it will keep writing the rules one indictment at a time.

Frequently Asked Questions

Who Is Michele Spagnuolo?

He is a 36-year-old staff information security engineer at Google, an Italian citizen residing in Switzerland. Prosecutors say he used an internal tool marked “Google Confidential” to view non-public search rankings, then traded on them through a Polymarket account named AlphaRaccoon.

What Is Polymarket and How Does It Settle Trades?

Polymarket is a prediction market where users buy and sell contracts tied to real-world outcomes. It settles every trade in USDC, a dollar-pegged stablecoin issued by Circle, and runs the activity on a public blockchain that records each position permanently.

Is Insider Trading Illegal on Prediction Markets?

Federal authorities now say yes. They treat the contracts as commodity products under the Commodity Exchange Act, so trading them on misappropriated confidential information can be charged as commodities fraud, even though prediction markets are not stock exchanges.

What Is the Eddie Murphy Rule?

It is a Dodd-Frank provision, nicknamed after the film Trading Places, that bars trading commodities on misappropriated government information. The CFTC used it for the first time in the Van Dyke case involving classified military knowledge, weeks before the Google charges.

How Much Prison Time Could the Charges Carry?

The three counts carry up to 50 years combined: 10 years for violating the Commodity Exchange Act, 20 for wire fraud, and 20 for money laundering. Maximum statutory limits rarely reflect actual sentences, which a judge would determine if there is a conviction.