Latest
Checked
State v. operator
Massachusetts Supreme Judicial Court, SJC-13906
Pending
Bluebook
Commonwealth of Massachusetts v. KalshiEx LLC, Prediction Market Laws (last updated Oct. 21, 2026), https://predictionmarketlaws.com/lawsuits/ma-v-kalshi-sjc.
APA
Prediction Market Laws. (2026, October 21). Commonwealth of Massachusetts v. KalshiEx LLC. https://predictionmarketlaws.com/lawsuits/ma-v-kalshi-sjc
Kalshi's appeal from the January 2026 preliminary injunction was transferred to the SJC in early March 2026 and argued on May 4, 2026; the injunction remains stayed under the Appeals Court's Feb. 17, 2026 order as reported. No decision found as of Oct. 21, 2026.
The question
Whether Massachusetts may enforce its sports-wagering licensing law against Kalshi's sports event contracts, or whether the CEA preempts it.
Kalshi's challenge to the Massachusetts injunction is before the state's highest court; the CFTC filed an amicus brief arguing federal preemption, and press accounts of the May 2026 argument described the justices as skeptical of Kalshi's position.
No decision date set171 days since argument
Argued May 4Pending
Resolves Yes if the Supreme Judicial Court affirms the Superior Court's preliminary injunction against Kalshi, No if it vacates or reverses it.
Mass. SJC No. SJC-13906. Source: Bloomberg
Oral argument.
Source: bloomberg.com
CFTC amicus brief filed.
Source: cftc.gov
Appeal transferred to the SJC; briefing schedule set with argument expected in May (month only).
Source: statehousenews.com