David M. Blitzer, S&P: Case-Shiller Indicates Home Prices Weaken as Q3 2011 Ends

November 29, 2011

Data through September 2011, released  by S&P Indices for its S&P/Case-Shiller Home Price Indices show that nationally home prices did not register a significant change in the third quarter of 2011, with the U.S. National Home Price Index up by only 0.1% from its second quarter level. The national index posted an annual decline of 3.9%, an improvement over the 5.8% decline posted in the second quarter. Nationally, home prices are back to their first quarter of 2003 levels.

As of September 2011, the annual rate of change in 14 of the 20 MSAs and both Composites, covered by S&P/Case-Shiller Home Price Indices, improved versus August. Atlanta, Las Vegas, Los Angeles, San Francisco, Seattle and Tampa recorded lower annual declines in September compared to August. Detroit and Washington DC were the only two MSAs to post positive annual rates of +3.7% and +1.0% respectively. Detroit has now recorded three consecutive months of positive annual rates.

The S&P/Case-Shiller U.S. National Home Price Index, which covers all nine U.S. census divisions, recorded a 3.9% decline in the third quarter of 2011 over the third quarter of 2010. In September, the 10- and 20-City Composites posted annual rates of decline of 3.3% and 3.6%, respectively. Eighteen of the 20 MSAs and both monthly Composites had negative annual rates in September 2011, the only exceptions being Detroit and Washington DC.

"Home prices drifted lower in September and the third quarter," says David M. Blitzer, Chairman of the Index Committee at S&P Indices. "The National Index was down 3.9% versus the third quarter of 2010 and up only 0.1% from the previous quarter. Three cities posted new index lows in September 2011 - Atlanta, Las Vegas and Phoenix. Seventeen of the 20 cities and both Composites were down for the month. Over the last year home prices in most cities drifted lower. The plunging collapse of prices seen in 2007-2009 seems to be behind us. Any chance for a sustained recovery will probably need a stronger economy.

"Detroit and Washington DC posted positive annual rates of change and also saw an improvement in these rates compared to August. Only New York, Portland and Washington DC posted positive monthly returns versus August. It is a bit disturbing that we saw three cities post new crisis lows. For the prior three or four months, only Las Vegas was weakening each month. Now Atlanta and Phoenix have fallen to new lows too. On a monthly basis, Atlanta actually posted a record low rate of -5.9% in September over August. The markets are fairly thin, and the relative lack of closed transactions might be exacerbating the downside. The relative good news is that 14 cities saw improvements in their annual rates of change, versus the six that weakened."

As of the third quarter of 2011, average home prices across the United States are back at their early 2003 levels. As of the third quarter, the National Index level has recovered by +3.9% from its recent index low in the first quarter of 2011. However, it is 3.9% below its 2010 Q3 level.

Atlanta, Las Vegas and Phoenix posted record index lows with September's data. While Phoenix home prices are almost back to their January 2000 levels, Atlanta and Las Vegas prices have fallen below these levels.

The table below summarizes the results for September 2011. The S&P/Case-Shiller Home Price Indices are revised for the 24 prior months, based on the receipt of additional source data.

Since its launch in early 2006, the S&P/Case-Shiller Home Price Indices have published, and the markets have followed and reported on, the non-seasonally adjusted data set used in the headline indices. For analytical purposes, S&P Indices does publish a seasonally adjusted data set covered in the headline indices, as well as for the 17 of 20 markets with tiered price indices and the five condo markets that are tracked.

A summary of the monthly changes using the seasonally adjusted (SA) and non-seasonally adjusted (NSA) data can be found in the table below.

S&P Indices has introduced a new blog called HousingViews.com. This interactive blog delivers real-time commentary and analysis from across the Standard & Poor's organization on a wide-range of topics impacting residential home prices, homebuilding and mortgage financing in the United States. Readers and viewers can visit the blog at www.housingviews.com, where feedback and commentary is certainly welcomed and encouraged.

The S&P/Case-Shiller Home Price Indices are published on the last Tuesday of each month at 9:00 am ET. They are constructed to accurately track the price path of typical single-family homes located in each metropolitan area provided. Each index combines matched price pairs for thousands of individual houses from the available universe of arms-length sales data. The S&P/Case-Shiller National U.S. Home Price Index tracks the value of single-family housing within the United States. The index is a composite of single-family home price indices for the nine U.S. Census divisions and is calculated quarterly. The S&P/Case-Shiller Composite of 10 Home Price Index is a value-weighted average of the 10 original metro area indices. The S&P/Case-Shiller Composite of 20 Home Price Index is a value-weighted average of the 20 metro area indices. The indices have a base value of 100 in January 2000; thus, for example, a current index value of 150 translates to a 50% appreciation rate since January 2000 for a typical home located within the subject market.

These indices are generated and published under agreements between S&P Indices and Fiserv, Inc. The S&P/Case-Shiller Home Price Indices are produced by Fiserv, Inc. In addition to the S&P/Case-Shiller Home Price Indices, Fiserv also offers home price index sets covering thousands of zip codes, counties, metro areas, and state markets. The indices, published by S&P Indices, represent just a small subset of the broader data available through Fiserv.