Core Viewpoint - Compass has filed a lawsuit against Zillow, claiming that Zillow's policy to ban private home listings is anticompetitive and violates antitrust laws [1][2]. Group 1: Lawsuit Details - Compass alleges that Zillow's exclusionary policy prevents home sellers from marketing their properties off Zillow for more than one day, leading to a ban on those homes from being listed on Zillow and its allies' platforms [1]. - The lawsuit seeks an injunction to prohibit Zillow from enforcing its "Zillow ban" and similar policies, along with a jury trial and unspecified damages [3]. Group 2: Zillow's Response - A Zillow spokesperson stated that the claims in the lawsuit are unfounded and that the company will vigorously defend against them [3]. - The spokesperson emphasized Zillow's focus on creating a level playing field in the home buying and selling process [4]. Group 3: Market Context - The housing market has become increasingly competitive, with the National Association of Realtors reporting a decline in sales of previously occupied US homes in April due to elevated mortgage rates and rising prices [4]. - Existing home sales fell by 0.5% in April from March, reaching a seasonally adjusted annual rate of 4 million units, marking the slowest sales pace for April since 2009 [5].