There's a fight happening in real estate right now that most buyers and sellers never see, but it shapes every home they look at. On one side is Compass, the largest brokerage in the country, pushing "Private Exclusive" and "Coming Soon" listings that hold back days on market and price-drop history. On the other side are the MLSs, the shared databases that every agent, every brokerage, and every major home search site has relied on for decades.
I call it a data cold war, because that's what it is. It isn't really about marketing. It's about who controls the information you use to make the biggest financial decision of your life.
I've seen this from both sides
I'm with Vanguard Properties today, but I'll be upfront: I spent time at Compass before that. And being on the platform, it all seems great. The tools are slick, there's private inventory you feel lucky to see, and the seller pitch is compelling — list privately first, with no days on market and no price-drop history, and your negotiating power stays protected. That's how Compass markets it, and I understand why it lands.
But now that I'm at Vanguard and looking at it from the outside, I see it differently. At the end of the day, in my opinion, this is a data grab. The more listings live inside one brokerage's private network, the more buyers have to go through that brokerage to see them, and the less complete the public record becomes. Industry analysts have made the same point: Compass needs its phased, private model to monetize its agents' listing data, and the MLS's cooperation rules are what stand in the way.
Where the fight stands right now
A quick recap, because this has moved fast:
- Clear Cooperation. Since 2020, the National Association of Realtors has required agents to put a listing in the MLS within one business day of publicly marketing it. Compass has fought that rule hard, and CEO Robert Reffkin has framed the whole thing as "choice vs. control."
- Zillow drew a line. In mid-2025 Zillow started blocking listings that were publicly marketed elsewhere before hitting the MLS. Compass sued Zillow. Right here in the Bay Area, 384 homes were out of compliance at the start of that year.
- Compass partnered with Redfin and Rocket. Earlier this year, Compass struck a deal that puts its pre-MLS listings on Redfin — specifically without days on market, price-drop history, or home value estimates.
- Compass vs. Northwest MLS settled. After a 16-month antitrust fight in Seattle, the two sides settled at the end of August. NWMLS created a new "First Look" status that lets sellers publicly pre-market a home while keeping it visible to every MLS member — and NWMLS says there will be no off-MLS private listings as a result.
- The private phase is shrinking. By early August, Compass's Private Exclusive count was down 27% year over year, while its Coming Soon listings were up 185%, according to analysis cited by HousingWire.
That last point tells you a lot. Even Compass seems to be quietly shifting away from the fully private model.
Update: The MLSs are fighting back, including ours
This fight escalated fast in October. In September, Compass sent demand letters to MLSs around the country with an ultimatum: by October 6, stop fining agents who publicly market listings outside the MLS, or face a federal antitrust lawsuit. The MLSs didn't fold.
- October 5: CRMLS sued first. California Regional MLS, the second-largest MLS in the country, covering 22 California counties including parts of the Bay Area, asked a federal court in New York to declare its cooperation rules legal and block Compass from suing over them. CRMLS says it has processed about 300 cases under that rule so far this year, roughly 75 of them involving a Compass listing.
- October 16: Compass countersued. Compass filed its own antitrust suit against CRMLS in Los Angeles, and said it will pay CRMLS fines for agents at its company-owned brokerages.
- October 21: six more MLSs filed together. Arizona Regional MLS, REcolorado, Canopy MLS, Hive MLS, Doorify MLS, and bridgeMLS filed a joint federal lawsuit against Compass. Together they represent more than 120,000 real estate professionals, and they're asking the court to confirm their cooperation rules are legal and bar Compass from suing them over those rules.
- Others are holding the line, too. Unlock MLS and OneKey MLS have publicly rejected Compass's demands without going to court.
That bridgeMLS name should get the attention of anyone buying or selling in the East Bay. bridgeMLS is our MLS, the shared database behind most listings in Alameda and Contra Costa counties. When I say I'm betting on the open market, bridgeMLS is that open market here, and it's now in federal court defending the rule that keeps it complete.
The MLSs' core argument lines up with what I've been saying all along. According to RISMedia's reporting, the complaint accuses Compass of trying to limit access to listings so that buyers and other agents have to go through a Compass agent just to learn a home is for sale. Compass sees it differently: it argues sellers, not MLSs, should decide how their homes are marketed, and says MLSs serving more than 350,000 agents in 12 states already allow this kind of public marketing. None of these cases have been decided, and I'll keep updating this post as they move forward.
Days on market is information, not a verdict
I want to be clear about where I stand, because this gets twisted. I'm not here to tell you days on market should be a major factor in what a home is worth, or that it shouldn't be. Some buyers weigh it heavily. Some ignore it completely. That's their call.
My point is simpler: days on market is pertinent information, and buyers and sellers deserve to have it so they can make informed decisions. Hiding it doesn't change the reality that the home was for sale. It just means fewer people know that.
And here's the part that gets overlooked: today's seller is tomorrow's buyer. The same person who wants their own history hidden is going to want full transparency the minute they're shopping for their next home.
The 21-day problem
Here's what concerns me most as a listing agent. Private exclusives can separate and dilute days on market for the inventory that eventually comes on.
In my experience, buyers in our market pick up on homes that haven't sold — or at least gone pending — within about 21 days. Past that point, the questions start. What's wrong with it? Is it overpriced? Why hasn't anyone bought it?
Now picture a home that spends its first three weeks in a private network. By the time it finally hits the open market, the public sees a "new" listing, but the agents and buyers who already passed on it know better, and the momentum that a fresh listing gets — the new-listing alerts, the first-weekend open house traffic, the competing offers — has already been spent in a closed room. When that inventory hits the market after sitting that long, people probably aren't going to flock to it.
This isn't hypothetical. In its counterclaim against Compass, Northwest MLS alleged that roughly 95% of Compass's private-phase listings ended up on the MLS anyway. If that's even close to right, most of these homes aren't selling privately. They're just burning their fresh-listing window before the full market ever sees them.
It's telling that even the NWMLS compromise caps First Look pre-marketing at 21 days. That window matters to everyone, not just me.
And if you need more proof that days on market matters to the industry, look at the rules MLSs already have around it. In San Francisco, for example, SFAR requires a home to be off the market for 30 days before its days on market can reset — and Compass's own chief economist noted that relistings spike right at that 30-day mark. Sellers clearly care about that number. That's exactly why buyers should get to see it.
Why I list on the open market
I believe advertising a home on the open market is the best way to get my sellers the most money. It's not complicated. Maximum exposure creates maximum competition, and competition is what drives price and terms. Every buyer, every agent, every brokerage, every search site — all at once, on day one. That's how multiple-offer situations happen here in the East Bay.
That doesn't mean there's never a reason to market quietly. Some sellers have real privacy or safety concerns, and that's a conversation I'll always have honestly. It's the seller's choice. But my default recommendation, and the strategy I believe in, is the open market.
What this means for you
If you're selling, ask your agent exactly where your home will be seen, by whom, and for how long. Ask what you might be giving up by starting in a smaller pool of buyers, and how your days on market will look when the home does go public.
If you're buying, ask for the full history on any home you're serious about. If a listing pops up as "Coming Soon" or brand new, ask how long it's actually been marketed. A good buyer's agent can usually find out.
The bottom line
The tools and the branding will keep changing, but the principle doesn't: the more buyers who see a home, the better the outcome for the seller, and the more information buyers have, the better their decisions. I've seen this debate from inside Compass, and now from Vanguard Properties, and I'm betting on the open market.
This post reflects my professional opinion as a Bay Area real estate agent and isn't legal advice. The rules and lawsuits mentioned here are still evolving, and the details are current as of October 22, 2026.
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