Prediction market operator Kalshi has confirmed it is investigating a series of unusually well-timed bets on Katie Zacharia being named White House press secretary. The three wagers, placed before the appointment became public, totaled roughly $173 and are expected to return about $9,600 if settled as anticipated. Zacharia previously worked at the Department of Homeland Security and serves as a senior communications adviser at Trump Media.
According to trading records, Zacharia was trading near a 1% probability in the days before reports emerged. The first identified bet of about $19 was placed at 10:42 p.m. ET on October 8, with an expected return of $1,896. Two more bets of roughly $74 and $80 were placed around 1:41 p.m. ET on October 9, expected to return $3,689 and $4,023 respectively. Major news organizations began reporting her selection at about 2 p.m. ET, and President Donald Trump publicly confirmed the appointment later that afternoon via Truth Social.
Kalshi has not publicly identified the traders and there is currently no evidence that they had nonpublic information. The investigation will examine who controlled the accounts and whether any trader had access to material nonpublic information. The platform noted that timing alone does not prove insider trading, but the trades highlight how low-probability political contracts can generate outsized returns with small capital.
The case follows several enforcement actions. In August, the CFTC ordered former White House teleprompter operator Gabriel Perez to disgorge $107,539.02 in trading profits and pay a $65,000 penalty for using advance access to Trump’s prepared speeches. Former Congressman George Santos also faced penalties after trading a contract tied to his own attendance at the 2026 State of the Union. Kalshi has tightened controls, introducing additional risk scoring and employment verification for sensitive markets in June, and said it opened more than 150 investigations and made over 20 law enforcement referrals in the first quarter. In August it announced a partnership with Nasdaq Market Surveillance to expand insider trading detection.
Political prediction markets face structural challenges because outcomes can depend on decisions made by only a small number of people, potentially known internally before the public. The Zacharia probe will test whether Kalshi’s systems can connect unusual trading patterns with privileged government or campaign access before repeated cases weaken confidence in political contract prices.
