CoinDesk
Kalshi will begin requiring some users to disclose their employers before they can trade on markets the platform flags as high-risk for insider trading or manipulation, the federally regulated exchange said Tuesday. The measures, effective immediately, follow recommendations from an independent Surveillance Audit Committee and add three new pieces of infrastructure: pre-trade screening tied to employment data, a risk-scoring system that grades markets on insider-trading risk, regulatory exposure, and national-security implications, and expanded whistleblower tools built directly into individual market pages.
Kalshi framed the package as a quantitative problem in disclosure. "For markets with heightened insider or manipulation risk, we now collect employment information before traders can participate," the exchange said, describing a process designed to flag participants with access to material nonpublic information about a contracted event. Markets that score above the platform's manipulation threshold can be relegated to tighter controls or rejected from listing outright, the company added.
Why it matters
The disclosure push lands on top of disclosed enforcement data. Kalshi said it blocked more than 100 suspected insider trades in Q1 alone, opened over 150 investigations, referred more than 20 cases to law enforcement, and issued five disciplinary actions — none of which the company detailed or that could be independently verified. The platform sits squarely in a sector that is no longer theoretical, said Tim Meggs, CEO and co-founder of market-data firm LO:TECH. "Kalshi's move to require employment verification, risk-scored markets, and whistleblower tools highlights how the sector is starting to build the surveillance infrastructure to match its ambitions," Meggs told CoinDesk. "That maturation matters as much as the volume numbers."
The pressure is external, not just internal. A Yale and London Business School paper covering 2023–2025 Polymarket trades found that roughly 3% of traders accounted for the bulk of price moves on the rival platform, underscoring how thin prediction-market books can concentrate informational edge.
Frequently asked questions
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What is Kalshi changing about who can trade on its platform?
Kalshi will require some users to disclose their employers before trading on markets the platform flags as high-risk for insider trading or manipulation. The employment data feeds a pre-trade screening process and is used to flag participants with possible access to material nonpublic information.
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What new tools is Kalshi adding beyond employer disclosure?
The package includes a risk-scoring system that grades markets on insider-trading risk, regulatory exposure, and national-security implications, plus expanded whistleblower reporting tools built into individual market pages. Markets scoring above the platform's manipulation threshold can be relegated to tighter…
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How many suspected insider trades has Kalshi blocked?
Kalshi said it blocked more than 100 suspected insider trades in the first quarter, opened over 150 investigations, referred more than 20 cases to law enforcement, and issued five disciplinary actions. The company did not detail the cases and the figures could not be independently verified.
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Why is prediction-market insider trading drawing attention now?
A Yale and London Business School paper covering 2023–2025 Polymarket trades found roughly 3% of traders accounted for most price moves on the rival platform. Cited cases include the April arrest of a U.S. Army Green Beret for about $400,000 in bets tied to the Venezuela raid that captured Nicolás Maduro, and the May…
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Who recommended the new controls to Kalshi?
The measures were developed following recommendations from an independent Surveillance Audit Committee that reviewed Kalshi's enforcement systems, monitoring tools, and trading controls. The exchange said the policy takes effect immediately and that it will apply only to markets it considers at higher risk for insider…
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