Kalshi Press Secretary Bets Spark Insider Trading Probe

Kalshi press secretary bets are the latest test of how prediction markets police inside information. Kalshi is investigating trades that correctly predicted President Donald Trump would pick conservative commentator Katie Zacharia as White House press secretary, The Wall Street Journal reported on Friday, according to The Block. A Kalshi spokesperson confirmed the probe to the Journal.

What happened

The New York Times and other outlets began reporting Zacharia's selection at around 2 p.m. ET on Friday, October 9, 2026. At least three wagers on her were placed before that, according to a Journal analysis of public Kalshi data cited by The Block. A $19 bet placed at about 10:42 p.m. ET on Thursday is set to pay $1,896. Two more, for about $74 and $80, were placed around 1:41 p.m. on Friday and are expected to pay $3,689 and $4,023. Together, about $173 in stakes stands to return roughly $9,600, because traders had given Zacharia only about a 1% chance in the days before the reports.

The Defiant said the contract has settled Yes, but that it is unclear whether withdrawals by the individual accounts have been restricted. Kalshi trades are anonymous to the public, but the company keeps records of its traders' identities.

Zacharia works as a senior communications adviser at Trump Media & Technology Group, owner of Truth Social, a role she has held since June, according to her LinkedIn profile, CNBC reported. She would succeed Karoline Leavitt, who left the administration in late August. Trump confirmed the appointment in a Truth Social post on Friday afternoon, writing, "I am confident that Katie will deliver strong results for our Country," The Block said. CNBC added that her profile lists her as general counsel at Fix California, a conservative group founded by Trump administration official Richard Grenell, and shows a two-month stint as a Department of Homeland Security spokeswoman that ended in March.

Why it matters

The Kalshi press secretary bets are small in dollar terms but large in what they suggest. A contract priced near 1% returns roughly a hundred times the stake if it resolves Yes, which is why such small bets could turn into payouts of several thousand dollars. Personnel announcements are exactly the kind of event where a handful of people know the answer before the public does. The White House had already sent staff a memo warning against using nonpublic information for private gain after a series of well-timed bets related to the Iran war, the Journal reported, according to The Block. Neither the White House nor the Commodity Futures Trading Commission commented before publication.

Enforcement has been building. In August, former White House teleprompter operator Gabriel Perez agreed to repay $107,539 in profits and pay a $65,000 civil penalty to settle CFTC charges that he traded Kalshi markets after reading Trump's prepared remarks, with the CFTC crediting Kalshi for its help. Kalshi permanently banned former Rep. George Santos on August 31 and fined him just over $71,000 over trades tied to his State of the Union attendance. Since June, Kalshi has required traders to disclose their employers before trading in markets it considers at high risk of insider trading, and it said it made more than 20 law enforcement referrals and opened more than 150 investigations in the first quarter.

Congress is watching too. House Oversight Committee Chair James Comer opened a probe into insider trading on Kalshi and Polymarket in May, as covered in our report on the House Oversight insider trading letters. The case also lands as regulators redraw the rules for event contracts, as in our report on the CFTC interim final rule.

What's next

Kalshi has not said what it found or whether it will freeze payouts, ban accounts or refer the trades to authorities. Its handling of past cases suggests outcomes ranging from internal penalties to CFTC referrals. The key question is whether the traders had access to nonpublic information or simply guessed well; small, long-odds bets placed hours before a leak are suspicious but not proof.

For the industry, the Kalshi press secretary bets show that insider risk is not limited to sports and economic data. Any market tied to a decision made by a small group of people can attract informed traders, and platforms will be judged by how fast they detect them. This article is for information only and is not betting or investment advice.