Federal prosecutors have charged a Google engineer with using confidential search data to place bets on Polymarket, making over $1.2 million before the scheme unraveled. The case, filed in a California district court, marks the first time insider trading allegations have been brought against a user of a prediction market platform.
The Allegations
Michele Spagnuolo, a software engineer at Google, is accused of accessing proprietary data about upcoming product launches and search trends. According to the charging documents, Spagnuolo used that non-public information to wager on outcomes related to those products on Polymarket, a crypto-based prediction market. The trades netted him more than $1.2 million in profits over a roughly two-year period.
Prosecutors say Spagnuolo abused his access to internal Google systems, which included details about features still in development and unreleased hardware. He then placed bets on markets that asked questions such as whether a specific product would be announced by a certain date. The indictment alleges he used a series of wallets and accounts to avoid detection, but investigators traced the activity back to his work computer.
Prediction Markets Under the Microscope
The case has put Polymarket and the broader prediction market sector in a spotlight. Polymarket allows users to bet on the outcome of future events, from elections to product launches, using cryptocurrency. Unlike traditional financial markets, prediction markets have operated with relatively light regulatory oversight. But this prosecution suggests that using private corporate data to bet on such platforms can still constitute insider trading under existing securities laws.
Legal experts following the case note that the charges rely on the same principle used in conventional insider trading cases: trading on material, non-public information obtained in breach of a duty of trust. The government argues that Spagnuolo owed a duty to Google to keep its data confidential, and that his bets on Polymarket violated that duty.
Regulatory Questions Linger
The Justice Department's move intensifies scrutiny on how prediction markets are regulated. Unlike stock exchanges, platforms like Polymarket are not registered with the Securities and Exchange Commission. However, the Commodity Futures Trading Commission has taken an interest in event contracts, and the SEC has pursued enforcement actions against some platforms for offering unregistered securities.
This case sidesteps the question of whether Polymarket itself broke any rules, instead focusing on the individual's conduct. But it raises a broader question: as prediction markets grow, what obligations do they have to prevent insider trading? Current rules around data misuse are less clear for these platforms than for traditional financial markets.
Spagnuolo is scheduled to appear in court next month. The outcome of the case could set a precedent for how prosecutors treat insider trading on decentralized betting platforms, where the line between public and private information is often blurry.
