S&P/Case-Shiller Home Price Index

What Is the Case-Shiller Index?

The S&P/Case-Shiller Home Price Index (CSUSHPINSA on FRED) is a monthly repeat-sales house price index that tracks the prices of single-family homes in 20 US metropolitan areas, plus a national composite. It uses the repeat-sales methodology developed by Karl Case and Robert Shiller, which eliminates the mix-of-homes-sold problem that distorts simpler median-price series.

S&P Dow Jones Indices publishes the index monthly with a two-month lag. The major series include the 10-City Composite, the 20-City Composite, and the National Composite. Regional sub-indices for individual metros (Las Vegas, Phoenix, Miami, San Francisco, Tampa, etc.) reveal regional dispersion.

Why It Matters for Markets

Case-Shiller is the most-watched US home price indicator. It feeds directly into household wealth-effect analysis (a 10% home-price decline historically reduces consumption by 1-2% over 12 months) and indirectly into shelter inflation forecasting (rents track home prices with a lag).

For markets, the release moves homebuilders, building-products stocks, mortgage REITs, and the dollar (via wealth-effect implications for consumption). The 10-year Treasury moves modestly on surprises. The release is a tier-2 macro event.

How to Read the Print

Year-over-year vs month-over-month. YoY captures the broad trend; MoM flags turning points. Both are useful, but the MoM is noisier.

20-City vs National Composite. The 20-City focuses on major metros; the National Composite captures broader-market dynamics. The two can diverge when major metros underperform or outperform smaller markets.

Regional dispersion. Metro-level data reveal which regions are appreciating fastest or depreciating. Sunbelt metros (Phoenix, Tampa, Miami, Las Vegas) have led during expansions; Coastal California has been more rate-sensitive.

Annualised 3-month rate. The 3-month annualised rate is a useful high-frequency signal for turning points.

Historical Context

The Case-Shiller National Composite peaked in 2006 at the height of the housing bubble, fell 27% peak-to-trough through 2012, then recovered and surged through 2022 (driven by pandemic-era housing demand and low rates). The 2022-2023 rate-hike cycle produced a brief 5% national-level decline in late 2022 to early 2023 before prices stabilised and resumed climbing through 2024-2025.

Through 2024-2025, Case-Shiller has run at roughly 4-6% YoY appreciation nationally, with substantial regional dispersion. Sunbelt metros have decelerated to single-digit appreciation after their 2021-2022 surges; Coastal California has been weaker because of higher rate-sensitivity and outmigration. The combination of low inventory (lock-in effect) and constrained demand has produced an unusual housing-market equilibrium that has supported home prices despite weak transaction volumes.