Prediction market leaders Polymarket and Kalshi are escalating their battle against insider trading. Both platforms announced significant updates to their rulebooks and surveillance tools this Monday to root out market manipulation. This isn’t just a routine compliance update. It comes as Democratic lawmakers explicitly target these markets, seeking to ban betting on elections and conflicts entirely.
The timing is critical. Both firms represent the largest venues for forecasting real-world events. But as volume grows, so does the scrutiny. Regulators are asking a dangerous question: Are these markets surfacing truth, or are they just allowing insiders to profit from non-public information?
The New Rules: How the Mechanism Works
Polymarket rewrote its integrity rules, and the changes are immediate.
Prohibited conduct is now explicitly defined. Trading on illegal tips. Using non-public information. A coach betting on an injury he already knows about. An event organizer is betting on a setlist he helped create. The gray areas are gone.
Enforcement is handled by Palantir. The Vergence AI mechanism screens users and monitors transactions for suspicious patterns across both the DeFi platform and the US-regulated side. Kalshi is moving in the same direction with a real-time control desk built to flag disruptive trading. The goal is identical on both platforms. Make the cost of cheating higher than the potential payout.
JUST IN: POLYMARKET IMPLEMENTS SWEEPING MARKET INTEGRITY RULES ACROSS PLATFORM@Polymarket is rolling out an explicit ban on insider trading, spoofing, wash trading, and outcome manipulation across both its DeFi platform and its CFTC-regulated U.S. exchange.
The update… pic.twitter.com/sG4YZKRRJe
— BSCN (@BSCNews) March 23, 2026
The political pressure driving this is real. Rep. Ritchie Torres and Sen. Jeff Merkley have been circling these platforms for months. Senate Democrats recently proposed outright bans on markets they view as unethical. Polymarket CLO Neal Kumar was direct about the intent. The compliance infrastructure they have already built needs to be visible.
The contradiction is structural, and there is no clean way around it. You cannot decentralize a market while partnering with one of the world’s most aggressive data surveillance firms to police every trade. Polymarket knows this. It is a necessary compromise for survival.
For traders, the tradeoff is straightforward. Cleaner markets mean fairer odds and less chance of getting dumped on by an insider. But your data is now being processed by enterprise-grade AI. High-volume traders running legitimate strategies may trigger false positives. Expect more KYC intervention and slower dispute resolutions if your wins look statistically improbable.
More protection. Less privacy. The platforms are choosing regulatory survival over user anonymity.
The CFTC has already stated it has full authority over these markets. What Congress decides in the coming months determines whether these platforms survive in their current form. Polymarket is betting Palantir buys enough goodwill to keep the doors open.
Draw your own conclusions. The pivot to surveillance is hard to ignore.
The post Polymarket and Kalshi Tighten Rules Amid Insider Trading Scrutiny appeared first on 99Bitcoins.
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