Google Engineer’s $1.2M Polymarket Bet Opens Insider Trading Front

A Google engineer’s alleged $1.2 million insider trading scheme on Polymarket turned an internal Year in Search marketing tool into 25 winning bets, federal prosecutors said Wednesday, including a contrarian wager on the rapper D4vd as Google’s most-searched person of 2025. Michele Spagnuolo, 36, an Italian citizen living in Switzerland, was arrested in New York and charged with commodities fraud, wire fraud, and money laundering by the US Attorney’s Office for the Southern District of New York (SDNY, the federal prosecutor’s office covering Manhattan).

His arrest is the second federal prediction-market insider trading prosecution in 60 days. The first, an Army servicemember accused of trading on classified Venezuela intelligence, set the misappropriation theory in motion. This new filing extends it from government secrets into corporate ones, and Polymarket, the Commodity Futures Trading Commission (CFTC, the federal regulator for derivatives markets), and roughly two dozen institutional traders are watching the playbook take shape.

Inside the AlphaRaccoon Trades

Between October 15 and December 4, 2025, Spagnuolo placed roughly $2.75 million across 25 separate outcomes in Polymarket’s Google Year in Search contracts, according to the criminal complaint. He traded under the handle AlphaRaccoon, funded the wallet with cryptocurrency, and netted approximately $1.2 million when the contracts resolved.

The standout wager arrived in November. He bought yes-shares on D4vd as Google’s most-searched person of 2025 at a moment when the rest of the order book treated the singer as a near-zero probability. D4vd, in custody on charges related to the death of a teenage girl, was not on the radar of public predictors. He had been on the Year in Search tool that any Google employee could query, and once the contract resolved and the winnings cleared his crypto wallet, prosecutors say AlphaRaccoon scrubbed its display name from the platform account.

Federal Bureau of Investigation (FBI) agents untangled the alias chain because one wallet had been opened with an Italian identification card matching the defendant’s. Three signals tied the activity back to him:

• An Italian government ID attached to one of the funding wallets gave investigators a direct identity anchor.
• Access logs at Google showed queries against the internal Year in Search tool in the days before specific bets.
• Wallet-to-wallet transfers visible on the blockchain linked the alias to the rest of the trading cluster.

A Google spokeswoman said the company was “working with law enforcement on their investigation” and that he had been placed on leave. The internal data he allegedly used was “marketing material accessed using a tool available to all employees,” she added, while characterising the trades as “a serious breach of our policies.” He was released on a $2.25 million bond.

Why Jay Clayton Calls It Commodities Fraud

The architecture of the indictment matters more than the headline number. Polymarket contracts settle in USDC (a dollar-pegged stablecoin), trade on-chain, and resolve on real-world events. They are not stocks; they are event contracts treated as a class of swap under the Commodity Exchange Act. The complaint and a parallel CFTC civil action over event-contract insider trading apply the misappropriation theory of insider trading, long settled in securities law, to that swap-shaped wrapper.

US Attorney Jay Clayton, who ran the Securities and Exchange Commission from 2017 to 2021 before returning to SDNY, framed the case in the language of traditional Wall Street enforcement.

Today’s charges reinforce a decades-old message: corporate insiders cannot use confidential business information to turn a profit in our markets.

The spine of the prosecution lifts from United States v. O’Hagan, the 1997 Supreme Court ruling that anchored modern securities insider trading doctrine. The defendant owed Google a duty of confidentiality over Year in Search data; he allegedly breached that duty for personal gain; he traded a market with “potential financial, economic, or commercial consequences.” If the theory holds at trial, every event contract on the platform becomes subject to the same fraud prohibitions as a Nasdaq-listed share. If it fails, prediction markets keep operating in the legal grey zone that traders have been exploiting since 2024.

The Maduro Case Set the Template Two Months Earlier

The complaint draws on a precedent the SDNY introduced two months earlier.

In April, the same office indicted an active-duty Army servicemember who allegedly used classified intelligence about “Operation Absolute Resolve,” a planned operation against Venezuelan president Nicolás Maduro, to load up on event contracts predicting Maduro’s removal. He bet roughly $33,000 and walked away with about $409,000 when the operation broke into the news.

That case introduced two doctrinal moves the new filing reuses. The first invoked the Commodity Exchange Act’s prohibition on trading swaps using material nonpublic government information, a provision lawyers call the “Eddie Murphy Rule” after its origin in the 1983 film Trading Places. The second treated classified government information as “property” capable of being misappropriated under federal wire fraud law, a question the Second Circuit narrowed in a separate 2023 ruling.

The corporate version extends both moves into the private sector. Government secrets become corporate secrets. Classified intelligence becomes confidential marketing data. The same statutes do the same legal work.

Sidley Austin’s white-collar group described the pairing in a May client note on the first prediction-market insider trading cases as a deliberate sequencing by prosecutors: stake the easier classified-information claim first, then bring the harder corporate-information case behind it. The lighter precedent landed in April. The harder one followed in May.

Polymarket Had Already Flipped Its Stance

By the time agents arrested the defendant on Wednesday, Polymarket had spent three months rewriting its own rulebook to look exactly like the one the SDNY was about to invoke. CEO Shayne Coplan, who once described insider trading as a “feature” of prediction markets that pulled hidden information into prices, signed off in March on a market integrity overhaul. The new framework explicitly bans three categories of conduct: trading on stolen confidential information, trading on illegal tips, and trading by anyone with authority to influence the underlying outcome. The pivot tracks a regulatory clock the company can read clearly:

• $24 billion in combined April monthly volume across the platform and rival Kalshi, up from under $5 billion in September 2025, per Pew Research’s tracker of prediction-market trading volume.
• $1.3 billion on the regulated US arm in April alone, against $9 billion on the offshore international book.
• November 25, 2025: the date the agency issued an amended order of designation enabling intermediated US market access, the license that made domestic brokerage onboarding legal.

The platform also signed an on-chain surveillance partnership with blockchain-analytics firm Chainalysis and entered a Regulatory Services Agreement with the National Futures Association (NFA), the self-regulatory body that polices registered derivative firms. A spokesman said it “worked closely” with prosecutors on the arrest, adding that blockchain trading is “transparent, traceable, and bad actors leave footprints.”

Before and After the Polymarket Rulebook

The comparison below maps what shifted between the platform’s earlier posture and the integrity framework now in force.

In the middle column, the alleged scheme reads as a successful trade. The right column flags it for the control desk before the second wager clears and refers the wallet cluster to the NFA for sanction.

Whether that referral chain works in practice is exactly what the next prosecutorial wave will test. The enforcement stack is still new, and the contracts in the indictment lived on the offshore book, outside the US perimeter the new designation actually covers.

Congress, the CFTC, and the Maduro Trial

House Oversight chair James Comer and ranking member Jamie Raskin sent Coplan a joint letter on May 22 demanding internal records on insider activity, account-linking practices, and the platform’s compliance roadmap. The House Oversight Committee request on prediction-market insider trading covers communications from January 2024 onward and cites the same statutes prosecutors just charged.

Three deadlines now sit on the same calendar. The CFTC closed its public comment period on a proposed prediction-markets rule in late April; the final text is expected by autumn. The defendant’s preliminary motions will probably reach a judge by late summer, and any ruling on whether Year in Search marketing data qualifies as “property” under federal fraud statutes will reverberate beyond this platform into every corporate dataset a knowledge worker can access. The Army defendant’s trial, scheduled for early 2027, will produce the first jury verdict on event-contract misappropriation.

If those three tracks hold, the regulatory perimeter around prediction markets ends up looking like a junior version of the Financial Industry Regulatory Authority (FINRA), with Chainalysis playing the role market surveillance vendors play on equity exchanges. If the wire fraud theory loses on the property question, the SDNY’s two-case run becomes a footnote and the offshore venues keep doing what they did in 2024.

Either path, the next AlphaRaccoon will face a different rulebook than the one this one found.