Ryan Cox v. Coinmarketcap Opco, LLC

FOR PUBLICATION

UNITED STATES COURT OF APPEALS

FOR THE NINTH CIRCUIT

RYAN COX, individually and on No. 23-15363 behalf of all other similarly situated, D.C. No. Plaintiff-Appellant, 3:21-cv-08197-

SMB

v.

COINMARKETCAP OPCO, LLC; OPINION

BINANCE CAPITAL

MANAGEMENT COMPANY, LTD.,

DBA Binance, DBA Binance.com;

BAM TRADING SERVICES, INC.,

DBA Binance.US; CHANGPENG

ZHAO; CATHERINE COLEY; YI

HE; TED LIN,

Defendants-Appellees.

Appeal from the United States District Court for the District of Arizona Susan M. Brnovich, District Judge, Presiding

Argued and Submitted February 9, 2024 Phoenix, Arizona

Filed August 12, 2024 COX V. COINM ARKET CAP OPCO, LLC

Before: Marsha S. Berzon, Andrew D. Hurwitz, and Anthony D. Johnstone, Circuit Judges.

Opinion by Judge Berzon

SUMMARY*

Commodity Exchange Act / Personal Jurisdiction

The panel affirmed in part, reversed in part, and vacated in part the district court’s dismissal, for lack of personal jurisdiction, of Ryan Cox’s action under the Commodity Exchange Act, alleging that defendants unlawfully manipulated the price of a cryptocurrency called “HEX.” Although the Act…