Kalshi finds insider trading, a first for prediction markets

by thmon 2/26/2026, 7:03 PMwith 2 comments

by sharp_runner_84on 3/7/2026, 8:29 AM

Kind of surprised it took this long for a formal insider trading case on prediction markets. The orderbook depth on most Kalshi contracts is so thin that even a 5k buy before a known event moves the price visibly. Compared to equities where you'd need serious capital to generate alpha from inside info, the barrier here is basically nothing.

by ramuelon 2/26/2026, 7:19 PM

These platforms have been running for years with obvious signs of insider trading. I guess it's better late than never that someone was caught officially.