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Iris Calder is a pen name. We disclose pen names as pen names; our editorial policy explains why and how stories are checked.
Polymarket US alleges in a federal complaint filed on 16 October that Ohio's in-state presence rules for sports betting licences violate the Commerce Clause.
CNN says notional trading on 2026 US midterm contracts passed $750 million by 15 October, with more than 21,000 contracts listed on Kalshi and Polymarket.
Underdog filed in the Middle District of Tennessee on 13 October against eleven defendants, including Jonathan Skrmetti.
The Kagan Q3 2026 survey found 10% of respondents traded on yes/no exchanges in the past year, and 61% of traders are under 35.
iGaming Business reports the CFTC's 9 October proposal would define swaps to include sports, politics and weather event contracts, amid a circuit split.
Gambling Insider's review of Kalshi trade records shows Jeremiyah Love's third-pick contract drew the heaviest volume of 38 players, at 598,464.
The league backs petitioners in Flaherty v. KalshiEx, LLC, arguing sports event contracts are not swaps under Dodd-Frank and citing game-integrity gaps.
Ohio led 39 states and the District of Columbia in a joint brief, while the Seminole Tribe of Florida sued DraftKings in state court.
The Michigan regulator says Coinbase will stop listing sports event contracts and close open positions by 10 October; the legal dispute continues.
The two regulator associations filed an amicus brief on 2 October in New Jersey's Kalshi case; states won in the Sixth and Ninth Circuits.
Genius Sports launched Prediction.com, showing data from 11 prediction market apps alongside live sports data. Its Legend unit built the site.
Sensor Tower data quoted by Citizens put Week 2 downloads at 2.8m, up 28% year over year; Polymarket and Kalshi lead DraftKings and FanDuel over two weeks.
Yogonet reports the Ohio commission has told 10 prediction market operators and brokers to end sports event contracts by 16 October.
The appeals court held that two tribes are likely to show Kalshi's sports event contracts violate IGRA when users trade from reservations, and remanded.
The 15 September Texas Senate State Affairs hearing on prediction markets heard from the AGA's Tres York and Kalshi's Robert DeNault.
The fifth SOFTSWISS iGaming Trends Report says 52% of surveyed industry professionals named AI the leading macrotrend for 2027.
The platform comes as a service with a payment gateway, merchant console and cashier interface, and is also available through Hub88's HubMarket.
Blask data for January to August 2026 shows Polymarket at 57.8% of branded search, down from 74.3%, while Kalshi's trading volume remains far higher.
Supplier says the platform handled pricing through settlement for the tournament, with an 18% operator trading margin and Bet Builder volumes up on 2022.
The AGA said it is on “wartime footing” as tribal leaders and Caesars and MGM chiefs joined the attack; no prediction market firms spoke.
