TerraIndex™ HPI Commentary
May 2026
A Market in Holding Pattern as Buyers and Sellers Seemingly Remain at Odds
May’s housing market did not break down, but neither did it break out. Home values continued to appreciate modestly, inventory improved, and most markets posted monthly gains. Yet affordability constraints, elevated mortgage rates, and slower metropolitan momentum prevented the spring market from building on March’s rebound. As summer begins, the key question is whether improved inventory and stable employment conditions can offset persistent affordability challenges—or whether the housing market will remain in its current holding pattern for the remainder of 2026.
Quantarium’s TerraIndex™ HPI data through May 2026 suggests the housing market ended the spring selling season much as it began: stable, but constrained. National home values increased 1.6% year-over-year, up modestly from 1.2% in April, while non-seasonally adjusted home values rose 1.1% during May. Seasonally adjusted appreciation remained subdued at just 0.2%, reinforcing the view that the market has settled into a holding pattern rather than a renewed acceleration cycle.
The spring market entered 2026 with signs of renewed momentum, culminating in a strong March rebound. However, by April and May, affordability pressures once again emerged as the dominant constraint. Mortgage rates remained elevated throughout much of the spring, limiting purchasing power and preventing many buyers from fully participating in the market. While demand remains present, it is increasingly sensitive to financing costs, creating a narrower path for sustained home price appreciation.
At the same time, housing supply conditions continue to improve. Realtor.com reported that active inventory and new listings remained above year-ago levels during the spring season, providing buyers with more choices than they have had in several years. Yet improved inventory has not translated into a corresponding increase in market velocity. Recent reporting also indicates that homeowners are increasingly withdrawing listings rather than accepting lower offers, with delistings reaching some of the highest levels observed since Realtor.com began tracking the metric. Together, these trends suggest a market where buyers remain constrained by affordability while many sellers continue to resist significant price concessions.
TerraIndex™ HPI regional data reinforces the growing divergence across U.S. housing markets. More than 90% of states recorded month-over-month appreciation in May, with New Jersey, Connecticut, and Pennsylvania leading monthly gains. At the same time, Texas, Arizona, Colorado, Florida, Nevada, and the District of Columbia continued to post some of the weakest annual performance metrics nationally. New York remained the strongest state on a year-over-year basis.
The story is even more pronounced at the metropolitan level. Among the nation’s 50 largest CBSA markets, 46% remained in negative territory on an annual basis through May. Chicago, Hartford, Cleveland, and Pittsburgh continued to post some of the strongest annual appreciation, while Austin and Cape Coral remained among the weakest-performing major markets. Importantly, the median month-over-month appreciation rate across the top 50 CBSAs slowed to 0.7%, down from 1.1% in April, indicating that market momentum weakened even as the broader national picture remained relatively stable.
This regional divergence increasingly appears structural rather than cyclical. Many Midwest and Northeast markets continue benefiting from relative affordability, limited inventory, and stable economic fundamentals. In contrast, several former pandemic-era boom markets are still working through the effects of rapid appreciation, higher carrying costs, rising insurance premiums, property tax pressures, and increased housing supply. The result is a housing market that is increasingly operating at two distinct speeds.
Broader economic indicators continue to send mixed signals. Builder confidence remains below historical norms, housing permits suggest continued caution among developers, and consumer sentiment remains subdued as households grapple with affordability concerns and economic uncertainty. Meanwhile, the labor market has remained relatively resilient, helping to prevent a more significant housing slowdown. These crosscurrents help explain why home prices continue to appreciate modestly even as transaction activity remains historically muted.
The divergence between TerraIndex™ HPI and several traditional transaction-based housing indicators also bears watching. While indices such as Case-Shiller have continued to report broader cooling in recent months, TerraIndex™ HPI data suggests that home values have largely stabilized through the spring. Differences in methodology, reporting periods, and market coverage may contribute to these varying perspectives, particularly in an environment characterized by low transaction volume and evolving seller behavior. Rather than signaling disagreement about market direction, these differences may reflect distinct views of an increasingly complex housing market.
External Market Indicators Referenced: Freddie Mac mortgage rates; Realtor.com inventory, listings, and delisting trends; S&P CoreLogic Case-Shiller Home Price Index; NAHB builder confidence survey; U.S. Census Bureau housing starts and permits data; University of Michigan consumer sentiment survey; Bureau of Labor Statistics employment data; Treasury yield and Federal Reserve market expectations.
Quantarium Research
