Kalshi will now ask some users where they work before letting them trade higher risk markets. The prediction market exchange says the new checks will help it block traders who may hold material, non public information before any order reaches the market.
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Kalshi says the new employment checks will only apply on markets with heightened insider or manipulation risk. Users flagged as likely insiders can lose access to that specific market rather than the whole platform.
“For markets with heightened insider or manipulation risk, we now collect employment information before traders can participate,” Kalshi said in a statement.
“This lets us identify presumptive insiders – people who have material, non-public information about a market’s outcome – and screen them out before a trade is ever placed.”
The exchange will ask affected traders for their current employer, industry, and job function. Kalshi will use that information inside a new market scoring system that rates each contract for insider trading exposure.
That approach gives Kalshi a more targeted tool than blanket bans. A trader who works in a sensitive role for one contract may have no special information for another. In plain terms, the platform wants to stop the risky trade rather than remove the user automatically from every market.
Kalshi said the new system also comes with broader surveillance updates. Recent coverage said the company has added risk scoring, employer checks, and whistleblower tools as part of a larger integrity package. Kalshi also reported more than 150 insider trading investigations in Q1 2026, blocked more than 100 potential insider trades, and sent more than 20 cases to law enforcement.
The announcement follows a run of cases that pulled prediction market integrity into wider public view. Last week, Kalshi reported former U.S. Rep. George Santos to the Department of Justice after suspicious trades allegedly tied to his attendance at the State of the Union Address in February.
Kalshi also said in April that it had suspended three politicians who bought contracts tied to their own races. Around the same period, a U.S. soldier faced charges after allegedly using inside information to make more than $400,000 on a Polymarket contract tied to the capture of Venezuelan President Nicolas Maduro.