National Data

A Change in Homebuyer Expectations Is Slowing the Housing Market

By Mike Simonsen on September 18, 2023


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Mike Simonsen

Mike Simonsen is the founder and president of real estate analytics firm Altos Research, which has provided national and local real estate data to financial institutions, real estate professionals, and investors across the country for more than 15 years. An expert trendspotter, Mike uses Altos data to identify market shifts months before they hit the headlines.

Home sales each week continue to be at depressed levels. We counted only 59,000 new pending sales this week. Meanwhile, available inventory of unsold homes is growing. In fact, this week inventory grew faster than it was last year at this time. That’s actually kind of alarming because this was the moment last year when the market really turned south. This week was the biggest week of inventory increase all year, with inventory growing by over 9,000 single family homes.

What’s happening? Well obviously mortgage rates have been stubbornly over 7% for a couple months now. But there’s another shift that's happened in the last few weeks, a psychology change for homebuyers that's impacting their behavior... and it's around their expectations for mortgage rates.

Buyers early in 2023 had slightly lower rates than now and were optimistic that mortgage rates would go lower still. At the time, most mortgage rate forecasters were assuming the economy would slow so rates would decline, and the spread between the 10-year bond and the 30-year mortgage would narrow so mortgage rates would end up closer to 5.5% than to 7.5%. The conventional wisdom was that rates would head lower. 

Now we’re starting to hear folks imagine 8% mortgage rates. So early in the year, you were buying at 6.5% and imagining 5.5% where you could refinance. Now you’re looking at 7.5% and imagining 8% or higher. This “higher for longer” conventional wisdom is working its way through the housing market. I interviewed Dr. Jessica Lautz from the National Association of Realtors for the Altos podcast and we talked about the prospect of 8% mortgage rates. I checked in with Robert Dietz of the Home Builders Association and they’ve raised their outlook on mortgage rates as well. 

So this change in buyer expectations is adding to the slowness right now. 

Every week Altos Research tracks every home for sale in the country. We analyze all the pricing, supply and demand, and all the changes in that data and we make it available to you before you see it in the traditional channels. If you aren’t using Altos market reports with your clients, your buyers and sellers, now might be the time to step up. Go to and book a free consult with our team. Because everyone is worried about what’s happening right now. They need you to help them see clearly. The data we cover here in these national videos is available for every zip code in the US. Join us to dive in.

I’m Mike Simonsen, I’m the founder of Altos Research. Let’s look at the data for the week of September 18th. Please refer to the video below for all the charts I mention in this transcript!




There are now 519,000 single family homes on the market across the US. That’s a 1.9% increase from last week. That’s a pretty big increase this late in the year. And reflects a notable slowdown in demand with mortgage rates well over 7% and this change in expectation of future rates. As I mentioned, the 9,000 unit increase in unsold inventory this week was the single biggest increase week all year.  This is an easy way to quantify the decreased demand that goes along with increasing unaffordability. 

Context is important though. A 9,000 unit increase is the biggest week all year. Last year though, we were seeing inventory grow by 20,000 to 30,000 units per week. 9,000 is a lot for September, but it’s not a lot in the grand scheme. It shows obvious slowing demand, but is also a reflection of the fact that most of the year we had more buyers than sellers of residential real estate. Total available inventory of unsold single family homes is still 6% less than last year. It’s more than I expected a few weeks ago, but there’s still not a lot of new supply.  So that’s how I view the inventory growth this week.


Sales Rate


The rate of sales each week is what is more discouraging. There’s just nothing in the data that shows sales rates increasing from the very low levels we’ve seen all year. The pace of home sales this year has been both demand and supply constrained. Though right now it’s more of a demand story. Most of the year sales rates have been suppressed for lack of supply - not enough homes to buy. But that condition has shifted with the cost of money in late summer. 

There were only 59,000 new pending sales of single family homes in the US this week. That pace of sales remains 10% fewer than last year. I was hoping by now the easy year on year comparisons would show more sales in Q4 than in Q4 2022 but there’s just no sign of that happening. It’s really now looking at January before the market resets and we see what 2024 has in store for us. 

There are 345,000 single family homes in the contract pending stage. That’s 12% fewer than last year. In this chart the height of each bar is the total count of homes in contract. The light portion of the bar are the new transactions each week. Last year, that new sales rate was plummeting each week.  But there were still 390,000 single family homes in contract last year mid-September. I’ve been hoping that our pendings sales would finally eclipse last fall, but it isn’t getting there. 

When we look at that new sales rate each week, you can see my disappointment. This is the chart of the new pending sales each week compared with last year at this time. The dark red line is this year. For a while in peak summer it looked like our sales rate would eclipse last year. But then rates surged over 7% and the sales rate responded immediately. Now each week we have 10-12% fewer sales than last year. You can see in this chart the light red line in October took a big dip last year. That was both seasonal and unusual with a big late year surge in mortgage rates. The only way we end 2023 with more sales than 2022 is if mortgage rates start easing down again and that trend looks durable. Like I mentioned above, the expectations now are more common that rates aren’t falling, that 8% seems more likely than say 6.5%, and that means a ton to buyers. I always caution that we at Altos do not forecast mortgage rates, and I don’t have quantification of the home buyer sentiment either, this is just speculation on my part based on the information flow I’m starting to see from the people who do forecast mortgage rates. And fact is that we can see significantly fewer buyers in the last couple months. That’s what this chart shows us since July.


Price Reductions


And as inventory builds, with fewer offers, so too must the price reductions climb. Sure enough there were more price cuts this week. Up to 36.6% of the homes on the market have taken a price cut recently from their original list price. See the dark red line here, that’s this year’s curve and in the last couple months the trend has reversed from improving conditions for sellers to weakening conditions for sellers. Remember that the price reductions are a leading indicator of where future sales will complete. 

There’s a lot of signal in the local markets too. The Texas markets like Austin and San Antonio and even Dallas are the ones where inventory is building and price cuts are climbing.


Home Prices

Home prices meanwhile are still on a different seasonal trajectory from last year. The median price of single family homes in the US is $444,900 now. Home prices are still 1% higher than last year. Those comparisons are about to get easier still. The question is whether weakening demand now brings prices lower as quickly as last fall. My suspicion is no. You can see the slope of the dark red line here. Last year home prices peaked higher than this year, and were ratcheting lower, especially in October and November. This year the slope of seasonal price declines has been much more gentle. That implies the year over year home price gains will hold or even improve in the 4th quarter. Though I’d point out that home price gains are less important this year than the total transaction volume. The supply and demand constraints. In order for the market to feel more healthy, we need more transactions. The fact that home prices are up year over year just helps us see that there is no 2008 apocalypse happening.  But it’s not that exciting, to be honest.

The price of the newly listed properties this week popped up a bit. That’s not unusual for mid-September. So I wouldn’t read too much into it. The price of the new listings is more volatile each week. At $399,900 that’s higher than last year at this time, but can bounce down next week. It’s not plummeting, so again, if you have a hypothesis that the housing market must be crashing, if you assume that home prices are crashing, using the leading indicators like the price of the new listings is helpful to confirm or reject that hypothesis. 

This is of course national data, and local markets are behaving very differently from each other right now. If you need to get your local data to your buyers and sellers right now, you should join us at Altos Research. Go to and book time with our team to learn how to interpret the market signals for the people who need it most right now. They need you to be the expert for them.

If you're interested in keeping up with the housing market, please sign up for our weekly real estate market updates. Every Monday, I break down all the latest numbers on home prices and inventory, and look at the trends we can see in the Altos data weeks or even months before you see them in the headlines.

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See you next week!

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