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Polymarket vows insider trading crackdown as traders bet $12M on CLARITY Act

Published Sep 2, 2026Updated 2h ago

Polymarket says it is strengthening systems to identify insider trading and suspicious activity ahead of the US midterm elections. Traders have wagered $12 million on the CLARITY Act, highlighting the platform's growing role in political prediction markets. The company announced new measures to address misconduct concerns as election-related volume climbs toward November. The pledge follows a fast-rising enforcement bar across CFTC-regulated venues.

Why this matters?

Kalshi's three recent bans on politically connected traders have set a new surveillance speed that Polymarket must now match. The CFTC fined a White House teleprompter operator $172,000 and Kalshi expelled George Santos and Laurie Buckhout before any regulatory filing. Those moves create a concrete template Washington will replicate. If Polymarket's midterm monitoring lags, regulators can treat it as the soft venue in the next insider-trading case.

Competitors without comparable detection records look negligent by comparison. Polymarket's 100-plus law enforcement case history is now a credential it must advertise loudly. The $12 million in CLARITY Act volume raises the stakes: more money on political contracts means more incentive for insiders to trade on advance knowledge. Whichever platform moves slowest becomes the natural target for the next CFTC action.

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