CoStar Group, Inc., et al v. Commercial Real Estate Exchange, Inc.
Case Number:
23-55662
Court:
Nature of Suit:
Companies
Government Agencies
Sectors & Industries:
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September 08, 2025
9th Circ. Denies CoStar's Bid To Rehear Antitrust Ruling
A Ninth Circuit panel rejected a call to revisit the court's June decision reviving claims alleging that real estate information service CoStar monopolizes several commercial real estate listing markets through exclusive deals with brokers and technological barriers for competitors.
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August 19, 2025
CoStar Gets Support For 9th Circ. Antitrust Ruling Redo Bid
A group of antitrust scholars, former government officials and a center-left technology industry coalition asked the Ninth Circuit to allow them to file amicus briefs that back CoStar Group Inc.'s request for a rehearing of a Ninth Circuit ruling that revived rival Commercial Real Estate Exchange Inc.'s antitrust counterclaims.
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August 07, 2025
CoStar Asks Full 9th Circ. To Revisit Antitrust Ruling For Rival
Commercial real estate information company CoStar Group Inc. and a subsidiary are urging the Ninth Circuit to reconsider its ruling reviving antitrust counterclaims lodged by rival Commercial Real Estate Exchange Inc., which CoStar has accused in a suit of stealing property listing data and copyrighted photos.
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June 23, 2025
9th Circ. Revives Antitrust Counterclaims Against CoStar
A Ninth Circuit panel on Monday revived counterclaims accusing CoStar of monopolizing commercial real estate information markets in the company's case accusing a rival of engaging in "industrial-scale" copyright infringement.
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October 09, 2024
9th Circ. Judge Open To Rebooting CoStar Antitrust Fight
A Ninth Circuit judge on a three-judge panel appeared open Wednesday to reviving counterclaims alleging CoStar monopolizes commercial real estate information markets, telling CoStar's counsel repeatedly that the lower court's ruling "reads more like summary judgment" than the granting of a motion to dismiss and improperly draws inferences in favor of CoStar.
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April 30, 2024
Ex-Enforcers Back CoStar At 9th Circ. Against Antitrust Claims
Several former antitrust enforcers told the Ninth Circuit that a lower court was right to toss a rival's claims that CoStar monopolizes commercial real estate information markets despite concerns from the Federal Trade Commission about the allegations.
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April 23, 2024
CoStar Rival Is Asking To Free Ride, 9th Circ. Told
CoStar urged the Ninth Circuit not to revive antitrust counterclaims from Commercial Real Estate Exchange Inc., despite backing from the Federal Trade Commission, arguing the rival is trying to use antitrust law to get free access to its platforms.
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January 29, 2024
FTC Backs CoStar Rival's Counterclaims At 9th Circ.
The Federal Trade Commission asked the Ninth Circuit on Friday to revive Commercial Real Estate Exchange Inc.'s antitrust counterclaims against commercial real estate information firm CoStar, warning that a district court's dismissal could impair the agency's probe of similar allegations as well as "meritorious cases against monopolists of all stripes."
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January 22, 2024
CoStar Rival Urges 9th Circ. To Revive Counterclaims
Commercial Real Estate Exchange Inc. pressed the Ninth Circuit on Friday to revive antitrust counterclaims characterizing commercial real estate information firm CoStar's original copyright suit as part of a broader campaign to sue rival CREXi "into submission."
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November 17, 2023
9th Circ. Won't Toss CoStar Rival's Counterclaim Appeal
A Ninth Circuit panel has declined to toss Commercial Real Estate Exchange's appeal of an earlier ruling on its antitrust counterclaims against commercial real estate information firm CoStar, allowing the appeal to proceed to a full briefing next month.