DescriptionOn June 18, 2026, CME Group filed suit (1:26-cv-02157, D.D.C.) vs. the CFTC and Chair Michael Selig, challenging the CFTC's May 29 approval of Kalshi's BTCPERP — the first regulated U.S.-listed Bitcoin perp. CME argues (1) perpetuals are legally 'swaps' not 'futures' under Dodd-Frank; and (2) the CFTC approved via a sub-24-hour 40.2 self-certification, bypassing required 40.3 notice-and-comment rulemaking. As of event creation, no preliminary injunction (PI) motion had been formally filed — only expected imminently per TD Cowen analyst Jaret Seiberg. This event resolves YES if the D.C. District Court grants CME's preliminary injunction halting U.S. Bitcoin perpetual futures trading on or before July 22, 2026 UTC. Resolves NO if the PI motion is denied, not filed, withdrawn, or no ruling is issued by the deadline. 1. Specificity: Formal written court order granting PI required. 2. Exclusion: TROs alone do not qualify. 3. Source Hierarchy: PACER/CourtListener primary; Reuters/Bloomberg secondary; CFTC/CME press releases tertiary. 4. Timing: Must occur before July 22, 2026 UTC. 5. Cancellation: PI motion withdrawal resolves NO.