Polymarket investigates suspicious trades on Israel election market

Polymarket has opened an insider trading investigation into a cluster of bets placed on Israel's parliamentary election market, according to a report from Quartz published Thursday.

The platform identified trading patterns it considers anomalous — positions taken ahead of information becoming public that moved the market. Polymarket has not named individuals under investigation or disclosed the volume of contracts involved.

The investigation runs alongside an existing CFTC probe into Polymarket's operations, reopened after evidence of banned US users accessing the platform. A second active investigation into the same platform will complicate Polymarket's posture with federal regulators at a moment when the commission has already named insider trading its top prediction market enforcement priority.

Israel's election market attracted significant international liquidity. If trades were placed on non-public information about coalition negotiations or vote-count data, the resolution mechanism itself becomes a point of legal exposure — Polymarket settles on publicly verifiable outcomes, but the trades occur before resolution, where information asymmetry is actionable.