Google Puts a New Prediction Markets Ban on Chrome
Google has banned prediction market extensions from the Chrome Web Store beneath up to date Developer Program Policies. Extensions that facilitate or allow real-money trades on predictive outcomes face enforcement beginning August 1, 2026.
The change provides a new distribution chokepoint for Polymarket and Kalshi simply as sector volumes hit information.
Why Google is Blocking Prediction Market Extensions
Google introduced the adjustments on July 1 by way of the Chrome for Developers weblog. The firm expanded its Regulated Goods and Services coverage to call predictive markets as prohibited merchandise. Non-compliant extensions danger elimination after the deadline.
The replace reaches past occasion buying and selling. Extensions might now accumulate solely information strictly essential to a disclosed single function. Developers should additionally prominently disclose each information observe and flag later adjustments.
A separate rule bans instruments constructed to bypass security guardrails in AI-powered providers. Google framed the overhaul as a belief measure in its official announcement.
“Users ought to all the time have full visibility into how their information is dealt with, with the arrogance that their extension ecosystem operates responsibly.”
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The stance cuts towards Google’s personal merchandise. Google Finance started integrating prediction market data from Kalshi and Polymarket in November 2025. The firm now welcomes the sector’s odds whereas blocking its buying and selling instruments.
Mainstream Momentum Meets Mounting Restrictions
The ban lands on a sector buying and selling at report scale. Combined month-to-month notional quantity reached $291.38 billion as of June 22, based on Dune information.
However, restrictions hold stacking up. Argentina ordered a nationwide block of Polymarket in March, becoming a member of greater than 30 international locations. That identical ruling compelled Google and Apple to drag Polymarket’s apps for Argentine customers.
In the US, the Commodity Futures Trading Commission (CFTC) is defending the sector in court docket. It’s a lawsuit over a Kentucky prediction market crackdown adopted by related instances towards states, together with New York and Wisconsin.
Capital retains flowing regardless. Kalshi reportedly seeks a $40 billion valuation, months after a $1 billion Series F. Meanwhile, a Wall Street Journal evaluation discovered Polymarket users losing money in over 70% of accounts. Just 0.1% of accounts captured 67% of all earnings.
Prediction markets stay reachable by way of web sites and cellular apps, so entry itself survives.
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