Zillow Loses Bid to Keep MRED Listing Feed as Court Sends Dispute to Arbitration

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A federal judge has denied Zillow’s bid for a preliminary injunction in its antitrust fight with Midwest Real Estate Data, a ruling that ends the temporary court protection that had kept Zillow connected to the Chicago-area multiple listing service while the dispute moved forward.

U.S. District Judge John J. Tharp Jr. issued the decision Sept. 15 in the U.S. District Court for the Northern District of Illinois. The court also directed Zillow’s claims against MRED to private arbitration and stayed the company’s claims against Compass while that arbitration proceeds.

The decision is a significant procedural turn in a case that has become one of the industry’s most closely watched fights over private listings, MLS data and the rules governing where homes can be marketed. It is not a final judgment on Zillow’s antitrust allegations.

The protection Zillow won in May is gone

Zillow sued MRED and Compass in May, alleging that the Chicago-area MLS and the brokerage coordinated to restrict competition and retaliate against Zillow over its listing-access standards. MRED had moved to terminate Zillow’s access to its listing feeds after Zillow adopted rules limiting the display of listings that had first been marketed privately.

The dispute quickly moved into federal court. On May 22, Tharp granted Zillow partial temporary relief and ordered MRED to restore access to its IDX and VOW residential listing feeds under specified conditions. WRE News reported on that order, which kept the data flowing while the court considered Zillow’s request for a longer-lasting preliminary injunction and MRED’s motion to compel arbitration.

After a two-day evidentiary hearing in July and additional briefing, Tharp declined to extend that protection.

In the Sept. 15 decision, the judge concluded that Zillow had not made the strong showing required at the preliminary-injunction stage on the elements of its antitrust claim. The ruling dissolved the temporary restraining order.

That distinction matters. A preliminary injunction is an extraordinary form of relief issued before the underlying litigation is resolved. The court’s decision addresses whether Zillow met the standard for that relief; it does not resolve the ultimate merits of every claim in the case.

MRED dispute moves out of federal court

The other consequential piece of the ruling is where the Zillow-MRED fight goes next.

The court sent Zillow’s claims against MRED to private arbitration. Zillow’s claims involving Compass remain in federal court but have been stayed while the arbitration proceeds.

For MLSs and brokerages watching the case, that changes the near-term battlefield. The public federal-court case will no longer be the only forum determining the dispute between Zillow and MRED, and the stay means the Compass portion will not simply race ahead while the MRED arbitration is unresolved.

Zillow acknowledged the setback Tuesday but emphasized that the ruling is not a final verdict on its antitrust allegations.

“Today’s ruling is not the final word,” Zillow said in a statement posted after the decision. The company said it continues to believe MRED and Compass coordinated to harm competition and said it intends to continue pursuing its claims.

MRED characterized the decision as an important victory for the MLS and the cooperative marketplace.

Why the fight matters beyond Chicago

The litigation grew out of a much broader industry battle over listings that are marketed privately before — or instead of — being broadly distributed.

Compass has aggressively promoted private and pre-market listing strategies. Zillow, meanwhile, has adopted listing-access standards intended to keep publicly marketed homes broadly visible to consumers on its platform. Those competing approaches have put portals, brokerages and MLS organizations in conflict over who controls listing distribution and what rules should apply.

MRED’s role makes the case particularly important. The MLS serves the Chicago market and controls data feeds used by brokerages, agents and real-estate websites. Cutting off a major portal’s access to those feeds has immediate consequences for what consumers see online and for how participating brokers’ listings are distributed.

WRE News has followed the dispute since May, when MRED moved to revoke Zillow’s feed access. Days later, the federal court ordered MRED to restore the feeds temporarily. The Sept. 15 ruling reverses that temporary protection and moves the central Zillow-MRED dispute into arbitration.

The ruling also arrives as the real-estate industry continues to reassess long-standing listing and cooperation practices. Questions about private listings are no longer simply marketing debates among brokerages. They increasingly involve competition policy, MLS governance, seller choice, portal rules and consumer access to inventory.

What happens next

The immediate consequence is that Zillow no longer has the preliminary injunction it sought against MRED, and the temporary restraining order that had protected its feed access has been dissolved. The MRED claims now head to arbitration.

What happens to Zillow’s actual access to MRED listing data — and how quickly the parties act following the ruling — will be important to watch. The court’s decision gives MRED substantially more room than it had under the temporary order, but the legal dispute itself is not over.

The arbitration could determine important issues between Zillow and MRED, while the stayed Compass claims may return to active federal litigation depending on what happens in that proceeding.

For brokers and MLS executives, the case is worth watching for a reason larger than the fortunes of the three companies involved. The underlying disagreement goes directly to one of the industry’s unresolved questions: how far an MLS, brokerage or portal can go in setting rules that determine where a seller’s listing appears — and what happens when those rules collide.