CFTC issues new advisory on mention markets. A September 22 staff advisory says exchanges may need to overcome a presumption that contracts on a person’s words or attendance are readily susceptible to manipulation. This is an advisory only, not a rule or a ban. defirate.com/news/cftc-menti…

Kalshi had its biggest week of 2026 so far. $15.27B in contract volume. First-ever $3B day. 85.3M trades. Mapped Combo markets generated $2.39B in volume, including $71.5M on a single 10-leg NFL combo. defirate.com/news/kalshi-202…

Days after a federal appeals court found Kalshi’s sports contracts likely violate tribal gaming rules on two California rancherias, the company has unveiled a Tribal-owned prediction-market app with the Tunica-Biloxi Tribe of Louisiana, a tribe operating in a state where sports betting and gambling are legal. defirate.com/news/kalshi-lou…

Kalshi and multiple Montana state government officials have submitted a joint request to dismiss the former’s lawsuit against the latter. The agreement has Kalshi drop all its claims against Montana authorities in exchange for a commitment that the state’s gambling regulators will not take action against event contract trading on the platform. defirate.com/news/kalshi-dis…

Week 1 prediction market volume reached at least $1.035B from Sept. 7-13. Kalshi accounted for $983.36M, including $445.88M in NFL-only combos. The total is a lower bound, with two Polymarket US daily reports still unavailable. defirate.com/news/nfl-predic…

🏈 Wild opening weekend. NFL markets on @Kalshi have generated at least $447.1M in contract volume this week, including $207.1M today alone. Game markets account for $408.0M, with another $39.1M in futures. NFL combo volume is still being reconciled, so the final total will be higher.

The American Gaming Association is urging a federal judge to reject the CFTC's request to block New York from enforcing gambling laws against sports-event contracts. The filing puts the sports betting industry's tax and consumer-protection arguments before the court ahead of a Sept. 14 preliminary-injunction hearing. h/t @WALLACHLEGAL defirate.com/news/aga-oppose…

CME is ending new expiries for its sports and cultural event-contract swaps, including contracts tied to sports, the Oscars and the Grammys. Existing positions will continue trading and clearing through expiration, but once those contracts run off, CME’s own prediction-market experiment will effectively go dark unless it files another rule change. defirate.com/news/cme-stops-…

Connecticut gambling regulators have issued 9 C&D orders to prediction market operators and 29 subpoenas: nine to licensed service providers, 15 to media organizations and five to app-store/payment companies. defirate.com/news/connecticu… h/t to @MickBransfield

Kalshi is asking the full Ninth Circuit to reconsider the panel decision allowing Nevada to regulate its sports-event contracts as gambling. @RobinhoodApp, meanwhile, has filed a Supreme Court petition seeking review of that same ruling, adding a second industry-backed request alongside New Jersey’s petition to settle a growing circuit split. defirate.com/news/kalshi-nin…

JUST IN: Instead of appealing to SCOTUS, @Kalshi has asked the full Ninth Circuit to review ("en banc") its case against Nevada. This comes after Kalshi lost with the appeals panel, which ruled 3-0 that Nevada can regulate the prediction site like gambling.

The first game of the 2026 regular season nearly quadrupled the Kalshi volume generated by last year’s opener, pushing @Kalshi, Polymarket Global and @Polymarket above $111 million. On Kalshi, the first game of the season went from $5.85 million to $105.48 million in 24 hours. Moneyline accounted for 58.7%, while player props had 16.1% share of market volume. Full report here: defirate.com/news/patriots-s…

Robinhood Derivatives has agreed to stop offering new sports event contracts to Michigan customers by September 9 and close outstanding positions by October 9. The deal leaves the core federal-preemption question unanswered, but extends the practical reach of Michigan’s crackdown beyond Kalshi as the Sixth Circuit weighs competing views of prediction-market regulation. defirate.com/news/robinhood-…

NFL trading volume could reach roughly $3.2 billion through Week 1 and $57 billion across the full 2026–27 season with Kalshi. Our forecast reflects the sharp expansion in prediction-market participation and NFL contract inventory over the past year, while using last season’s week-by-week trading pattern to model how volume is likely to build across the season rather than extrapolating the current growth rate indefinitely. defirate.com/news/prediction…

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The SEC has proposed to modernize decades-old transfer-agent rules, opening the door for blockchain to serve as the official record for securities ownership and share transfers. Industry experts say the move is a meaningful step for tokenized real-world assets and institutional adoption. defirate.com/news/sec-update…

Today, New Jersey asked the Supreme Court to settle prediction markets’ biggest legal question: are sports contracts federally regulated swaps or state-regulated sports bets? After the Ninth Circuit ruled last week that Nevada can regulate Kalshi’s contracts, the industry now has a direct circuit split and potentially a Supreme Court showdown. Read more: defirate.com/news/new-jersey…

Polymarket's new funding round reportedly values the company at $21 billion, bringing it within striking distance of Kalshi’s reported $22 billion mark. The deal is another huge vote of confidence in prediction markets, but it also lands as courts continue to question whether the sports contracts powering the sector’s growth belong under federal derivatives law or state gambling regulation. defirate.com/news/polymarket…

Prediction markets surged to $11.26B weekly contracts as Kalshi set a record, grabbing 90.4% market share, and powered growth through sports and combo markets. defirate.com/news/volume-rep…