Crampton Inspection Service

Real Estate Services

  • Home
  • About
    • About Us
    • Privacy Policy
  • Resources
    • First Time Home Buyer Tips
    • First Time Home Seller Tips
    • Home Pricing 101
  • Blog
  • Visit Our Website
  • Contact

Case-Shiller Index: 17 Of 20 U.S. Housing Markets Slipped In September

November 30, 2011 by Crampton Inspection Service Leave a Comment

Case-Shiller Index September 2011

Standard & Poor’s released its September 2011 Case-Shiller Index this week. The index tracks home price changes in select cities between months, quarters, and years.

The Case-Shiller Index for September showed drastic devaluations nationwide.

As compared to August, home values fell throughout 17 of the index’s 20 tracked markets, led by Atlanta’s 5.9% drop. On an annual basis, home values have now returned to early-2003 levels.

That said, home buyers and sellers in the Orinda area should be cautious when referencing the Case-Shiller Index. The index is a flawed metric and, as such, can lead to improper conclusions about the housing market overall.

The Case-Shiller Index’s first flaw is its most obvious — its limited sample set. 

According to Wikipedia, there are more than 3,100 municipalities nationwide. Yet, the Case-Shiller Index includes data from just 20 of them in its findings. These 20 cities account for fewer than 1% of all U.S. cities, and just a small percentage of the overall U.S. population. 

The “national figures” aren’t really national, in other words.

Even on a city-by-city basis, the Case-Shiller Index gets it wrong.

By lumping disparate neighborhoods into a single, city-wide result, the index ignores the relative strength of one area at the expense of another. In the aforementioned Atlanta, there are areas that fared much better than September’s -5.9% as cited by Case-Shiller. Some areas fared much worse.

A second flaw in the Case-Shiller Index is it’s methodology for measuring changes in home value. The index only considers “repeat sales” of the same home in its findings, and those homes must be single-family, detached property. Condominiums, multi-family homes, and new construction are not included.

In some cities — Chicago, for example — “excluded” property types can account for a large percentage of total monthly sales.

And, third, the Case-Shiller Index is flawed by “age”.

Because Standard & Poor’s publishes on a 60-day delay, the Case-Shiller Index is reporting on a housing that no longer exists. Sales that closed in September are based on contracts written from June-August –a time-frame that’s 6 months aged.

The best use of the Case-Shiller Index is as an analysis tool for economists and policy-makers interested in the long-term trends of U.S. housing. The index does very little good for every day buyers and sellers, unfortunately.

For up-to-date, accurate market data, talk to a real estate professional instead.

Filed Under: Housing Analysis Tagged With: Case-Shiller Index, Home Values, Standard & Poor's

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Logo

Contact Us


Crampton Inspection Service

P.O. Box 6043
Moraga, CA 94570
Phone: 925-376-7707
Email: john@your-home-inspector.com
CALL (925) 376-7707

How can we help?

  • This field is for validation purposes and should be left unchanged.

Connect with Us



max-width: 80px;

Recent Articles

  • The Top Tips For Finding The Right Home
  • What’s Ahead For Mortgage Rates This Week – August 15, 2022
  • The Top Home Maintenance Mistake’s You Must Avoid
  • Taking an Extended Vacation? Renting Your Home to Long-term Tenants is a Great Option
  • The Pros and Cons of Buying a New Home Versus Buying Pre-owned
Certified with California Real Estate Inspection Association (CREIA) and American Society of Home Inspectors (ASHI)

Looking For Something?

Our Location

P.O. Box 6043
Moraga, CA 94570

Copyright © 2022 · Powered by MySMARTblog