Supreme Court Declines Zillow Antitrust Case

October 21, 2025 - 01:29

The U.S. Supreme Court on Monday declined to take up an appeal from Real Estate Exchange Inc. (REX), a now-defunct real estate brokerage that had accused Zillow of engaging in anticompetitive practices. REX had claimed that Zillow's business model unfairly stifled competition in the real estate technology sector, alleging that the popular online platform favored its own listings over those of smaller competitors.

The case had garnered significant attention as it touched upon important issues within the real estate market, particularly concerning how technology companies operate and their influence on traditional brokerage models. REX argued that Zillow's practices harmed both consumers and smaller real estate firms, creating an uneven playing field.

With the Supreme Court's decision not to hear the case, the lower court's ruling stands, which previously dismissed REX's claims. This outcome may have implications for other companies in the real estate tech space, as it sets a precedent regarding the legal boundaries of competition in the rapidly evolving industry.