Google’s Chrome prediction market ban, set to take effect on 1 August 2026, prohibits browser extensions that ‘facilitate or enable real money transactions on predictive outcomes’ from the Chrome Web Store, arriving as Kalshi fights off state-level legal actions on multiple fronts and New York pursues Coinbase and Gemini on similar grounds.
What the Chrome Prediction Market Ban Actually Covers
The policy update, detailed on the Chrome for Developers blog, does not single out any platform by name. It adds prediction market extensions to a list of prohibited products, with developers given until 1 August to comply before enforcement begins, including removal from the marketplace.
The same policy revision also tightens data-handling requirements across all extensions: user data must now be used strictly for the single disclosed purpose, and developers must proactively notify users if data-processing methods change. The Chrome prediction market ban is one line item in a broader policy tightening, not a standalone intervention.
Google has not linked the update to any specific legal case or platform. The timing is what it is.
Kalshi’s New York Loss and the Second Circuit Appeal
On 7 July 2026, Judge Analisa Torres denied Kalshi’s request for a preliminary injunction against the New York State Gaming Commission. As DeSilva Law Offices noted in its analysis, Torres assumed without deciding that Kalshi’s sports-event contracts qualify as ‘swaps’ under the Commodity Exchange Act (CEA), and ruled against Kalshi anyway, finding that New York gambling law is not preempted by the CEA on these facts.
Kalshi had argued federal regulation under the CEA should override state gambling statutes. The court found Kalshi had not made a clear showing it was likely to succeed on the merits, allowing New York’s lawsuit to proceed. Kalshi has since appealed to the Second Circuit, according to Yahoo Finance.
Legal commentator Daniel Wallach called it a ‘major, major loss for Kalshi in the financial capital of the US,’ with likely knock-on effects in Connecticut and other Southern District of New York cases.
The Arizona picture looks different. A court there ruled that Kalshi’s contracts are swaps and enjoined that state, reversing an earlier denial of preliminary relief. Kalshi’s federal preemption argument is alive in some jurisdictions, dead in others.
New York Governor Kathy Hochul did not understate the moment: ‘Gamble with our laws and you’re going to lose. Just ask Kalshi.’
New York Widens the Net to Coinbase and Gemini
The state’s enforcement posture extends well beyond Kalshi. On 21 April 2026, Attorney General Letitia James filed suit in state court against Coinbase and Gemini, alleging both operated illegal gambling platforms through their prediction market offerings.
James argued: ‘Because the outcomes of these events are uncertain and outside the control of the bettor, or hinge on a game of chance, these prediction market platforms fit the legal definition of gambling in New York.’ The full press release is on the New York Attorney General’s website.
Coinbase Chief Legal Officer Paul Grewal pushed back, arguing that prediction markets are federally regulated national exchanges registered with the Commodity Futures Trading Commission (CFTC) and that the matter was already in federal court, according to Bloomberg Law. That argument maps closely to Kalshi’s preemption theory, and Judge Torres just declined it at the preliminary injunction stage.
The Spotify episode sits in the background of all this: Kalshi settled a prediction market tied to streaming numbers that Spotify said had been artificially inflated by more than 500,000 fake streams on Malcolm Todd’s track Earrings, adding a market-manipulation angle to an already complicated regulatory picture.
With the Second Circuit appeal pending, the CFTC preemption question unresolved across circuits, and the Chrome prediction market ban enforcement date now under a month away, extension developers and platform operators are converging on the same deadline with very different problems to solve. The Second Circuit’s read on CEA preemption is the ruling that will actually set the perimeter.
