Kalshi and Polymarket flagged 100+ potential insider-trading cases in 2026 — CFTC slow to act

Kalshi and Polymarket have flagged more than 100 potential insider-trading cases in 2026, according to gamblerss.com. The report contrasts that volume with limited enforcement activity at the Commodity Futures Trading Commission (CFTC).

Reports outpace enforcement activity

According to gamblerss.com, Kalshi has signaled approximately 50 cases this year and Polymarket approximately 90. The reported cases span suspected domestic and overseas offenses.

The outlet describes the CFTC as pared down and reports that it has brought just 11 enforcement actions. The available summary does not establish whether those actions concern cases flagged by either platform.

What the figures establish—and what they do not

The figures indicate a gap between the volume of potential misconduct identified by the platforms and the regulator’s reported enforcement activity. They do not, on their own, show how many flagged cases warrant action or establish that insider trading occurred.

The report was published on Oct 12, 2026, at 11:09 PM ET. Its full text was unavailable, and the supplied summary does not explain the allegations, their review status or the reasons for the CFTC’s limited activity.

What it means for prediction markets

• Flags are not findings: The approximately 50 Kalshi cases and approximately 90 Polymarket cases concern potential misconduct, not established violations.
• Enforcement comparisons need context: Without a breakdown of the CFTC’s 11 actions, the figures cannot establish how often platform reports lead to enforcement.
• Jurisdiction remains an open question: The domestic and overseas scope makes jurisdiction relevant, but the available material does not identify which authorities are responsible for individual cases.