Portillo et al v. CoStar Group Inc et al

  1. September 02, 2025

    CoStar Hotel Reports Lack Data For Price-Fixing, Judge Says

    CoStar and a group of hotel companies escaped from a putative antitrust class action when a Washington federal judge drew a distinction between the use of hotel industry benchmarking data and algorithmic rental pricing software of the sort at issue in litigation against Yardi Systems Inc.

  2. May 24, 2024

    Software-Aided Price Fixing Under Antitrust Assault

    Claims that companies in the same industry are using software middlemen to fix prices are percolating in federal courts around the country, with cases targeting major operators in residential real estate, hospitality and health insurance, among other areas.

  3. May 20, 2024

    CoStar, Hotel Giants Defend Benchmarking In Price-Fixing Suit

    CoStar Group Inc. and a contingent of big-name hotels have asked a Washington federal judge to toss an antitrust lawsuit claiming the hotel operators share industry analytics to inflate luxury hotel room prices, arguing the proposed class action is riddled with legal defects.

  4. February 21, 2024

    CoStar, Hotel Giants Accused Of Data-Driven Price-Fixing

    Hilton, Hyatt and other big name hotel operators are the target of a proposed class action alleging they colluded with hospitality industry analytics firm CoStar Group Inc. to fix prices in luxury hotel markets in Seattle and other major U.S. cities, according to a suit filed in Washington federal court.