CoStar Group, Inc. v. Commercial Real Estate Exchange, Inc.
Certiorari Denied
Petition for certiorari denied on March 23, 2026.
Issue
(1) Whether a “de facto” exclusive dealing claim is cognizable under the Sherman Act in the absence of exclusive contractual terms, programs, or policies; and (2) whether a refusal-to-deal claim prohibited by Verizon Communications Inc. v. Law Offices of Curtis V. Trinko, LLP is cognizable if the plaintiff calls it something else.
Dec 4, 2025Petition for a writ of certiorari filed. (Response due January 7, 2026)Dec 26, 2025Waiver of right of respondent Commercial Real Estate Exch., Inc. to respond filed.
Dec 30, 2025DISTRIBUTED for Conference of 1/16/2026.
Jan 7, 2026Brief amici curiae of Former Antitrust Officials, et al. filed. (Distributed)Jan 7, 2026Brief amicus curiae of Chamber of Progress filed. (Distributed)Jan 14, 2026Response Requested. (Due February 13, 2026)
Feb 13, 2026Brief of respondent Commercial Real Estate Exchange, Inc. in opposition filed.Mar 3, 2026Reply of petitioners CoStar Group, Inc.; et al. filed. (Distributed)Mar 4, 2026DISTRIBUTED for Conference of 3/20/2026.
Mar 23, 2026Petition DENIED.
Recommended Citation: CoStar Group, Inc. v. Commercial Real Estate Exchange, Inc., SCOTUSblog, https://www.scotusblog.com/cases/costar-group-inc-v-commercial-real-estate-exchange-inc/