The S&P Cotality Case-Shiller U.S. National Home Price NSA Index posts a 0.67% year-over-year gain in March 2026, down from 0.8% in February. The 10-City Composite rises 1.44% year over year and the 20-City Composite rises 0.83%. S&P Dow Jones Indices released the data.
More than half of the 20 tracked metro markets record year-over-year declines in March. Chicago posts the strongest increase at 6.09%, followed by New York at 4.02% and Cleveland at 2.99%, while Seattle posts the largest decline at -2.50%.
The release notes that March CPI runs 2.6 percentage points above the national index’s 0.67% annual gain, extending a 10-month stretch in which inflation outpaces national home price appreciation.
On a month-over-month basis before seasonal adjustment, the national index rises 0.72% from February, while the 10-City Composite rises 1.18% and the 20-City Composite rises 1.04%. After seasonal adjustment, the national index falls 0.22%, the 20-City Composite falls 0.16%, and the 10-City Composite falls 0.03%.
Detroit does not receive a valid March update because of transaction recording delays in Wayne County, with February figures provided instead. The release states the indices can be revised for the prior 24 months as additional source data are received.
