In the case of the political candidate, Kalshi cited a video posted online “that appeared to show him trading on his own candidacy.” Kalshi froze the candidate’s accounts and reported the activity to the Commodity Futures Trading Commission, the government agency that oversees prediction markets. It instituted a five-year ban and is fining the account a penalty 10 times the size of the initial trade, which Kalshi says it intends to donate to charity.