Congress Launches Major Insider-Trading Probe Into Polymarket and Kalshi
Congress hits Polymarket and Kalshi with a massive insider trading probe
US lawmakers have launched an insider trading probe involving prediction market platforms Polymarket and Kalshi, according to the information provided.
No additional details were included about which congressional office or committee is leading the inquiry, what specific conduct is under review, or whether any individuals or market participants have been identified as targets.
Even with limited publicly stated specifics, the involvement of Congress signals growing attention to prediction markets—platforms that allow users to take positions on the outcomes of real-world events—especially as they intersect with regulated financial markets and politically sensitive topics.
In broader context, insider trading probes typically focus on whether someone traded using material nonpublic information. Applied to prediction markets, that scrutiny can extend to how information flows around political events, corporate outcomes, or other news-sensitive categories that these platforms list.
The raw information did not specify any timeline for the probe, what data has been requested, or how either Polymarket or Kalshi is responding.
