Analysts and U.S. lawmakers say insider trading risks have surged on prediction markets after a series of high-profile geopolitical bets in January 2026, raising questions about whether platforms can effectively stop abuse. The debate centers on whether identity checks can prevent trades by insiders with material nonpublic information.
Research analyst Austin Weiler at Messari said prevention is realistically possible only on KYC platforms. “For KYC’d platforms, the most effective mechanism is to restrict access upfront for users to specific markets,” he said.
Weiler warned that fully onchain markets pose enforcement challenges because wallets lack reliable identity links. Platforms can monitor trades or limit sizes, but such controls are often easy to evade.
(Ed. note: transparency of onchain activity does not solve attribution.) “Bans targeting government officials are only realistically enforceable in KYC-based systems,” Weiler added.
Kalshi enforces KYC under U.S. rules and, on its sign-up page, states it requires basic personal information. Polymarket applies KYC to U.S. users while non-U.S. versions may run without mandatory checks, accessible via VPN, according to social media reports, and its user guide does not confirm global practices.
Opinion, a decentralized market backed by YZi Labs, provides no public KYC details via its app. Data shows trading volumes hit almost $6 billion by mid-January 2026, intensifying scrutiny after reports of an anonymous trader turning $30,000 into more than $400,000 hours before U.S. forces captured former Venezuelan President Nicolás Maduro. Representative Ritchie Torres has backed legislation to bar officials from trading while holding material nonpublic information.
