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Listing Access / Antitrust

About This Category

Track lawsuits challenging private listing networks, MLS data access restrictions, and portal boycotts — including Zillow v. Compass and MRED.

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Zillow v. Compass / MRED
Zillow Group, Inc. v. Compass International Holdings, Inc. and MRED LLC

Filed

May 12, 2026

Jurisdiction

Northern District of Illinois

Plaintiff Firm

Keker, Van Nest & Peters

Next Milestone

Defendants' response pending; preliminary injunction hearing anticipated within 30-60 days

Key Issue

Compass and MRED conspired to cut off Zillow's Chicago listing data access unless Zillow abandoned its Listing Access Standards consumer-protection policy; MRED-Compass partnership to expand Private Listing Network nationwide

Impact

First major federal antitrust challenge to private listing network data access restrictions. Zillow alleges a per se unlawful group boycott (Sherman Act §1) and monopoly abuse (Sherman Act §2) by MRED, which controls listing data for 43,000+ agents across Chicagoland. Compass cut off 25%+ of current Chicagoland listings from Zillow on May 8, 2026. The MRED-Compass partnership — in which Compass subsidizes 100,000 agent memberships — is designed to expand PLN leverage nationally, with simultaneous MLS outreach in North Carolina, Tennessee, and California. If the injunction is denied, portals that adopt pro-transparency standards could face the same data cutoff threats in multiple markets within weeks.