Federal prosecutors charged a Google employee with commodities fraud, wire fraud, and money laundering, alleging confidential data was used to trade on Polymarket prediction markets.
The case is the second federal prosecution tied to alleged prediction market insider trading.
“Blockchain trading is transparent, traceable, and bad actors leave footprints,” a Polymarket spokesperson told Decrypt in response to questions on fairness and rules.
Spagnuolo accessed marketing material through a tool available to all Google employees, a company spokesperson told Decrypt, adding that using confidential information to place bets was “a serious breach” of company policies. He has been placed on leave as the company weighs “appropriate action,” the spokesperson confirmed.
A ‘positive moment’The case is “ultimately a positive moment for prediction markets” because it shows insider activity can be identified and prosecuted, Tre Upshaw, founder of Polysights, an intelligence and strategy layer for prediction markets, told Decrypt.
Using material, nonpublic information “to trade against everyone else” is a market integrity issue whether it happens on a stock exchange, a regulated event market, or an on-chain prediction market, Upshaw noted.
“Pseudonymity makes enforcement harder, but it does not make traders invisible,” Upshaw said, adding that platforms need stronger surveillance and insider risk controls, “instead of only reacting after the damage is done.”
Such concerns were already pushing platforms and state governments to draw clearer rules around who can trade on event outcomes, ahead of the recent federal charges.
