Wednesday, July 30, 2008

May 2008 S&P Case-Shiller Index

The S&P Case-Shiller Index is based on observed changes in home prices. It is designed to measure the increases or decreases in the market value of residential real estate.
For each home sale transaction, a search is conducted to find information regarding any previous sale for the same house. If an earlier transaction is found, the two transactions are paired and are considered a “repeat sale.” Sales pairs are designed to yield the price change for the same house, while holding the quality and size of each house constant.
Sales pairs from the following counties are included in the Portland index: Clackamas, Columbia, Multnomah, Washington, Yamhill, Clark (WA), and Skamania (WA).

The first graph shows the year over year changes for the month of May 2008. The index consists of 20 cities and all cities now show price declines.

Click on any of the graphs for a better image.


The second graph shows the one month change for each of the 20 cities; Portland gained .4% while Seattle lost .5%.

The third graph shows all historical data for Portland, Seattle, and the 10 city index. The Portland residential real estate market has fallen 5.2% in the last year.

The next graph highlights the indices changes since the Federal Reserve stopped lowering interest rates in June of 2003. The Portland index is currently at 175.53; a decline of 5.89% since the market peak. The last time the index was this low was May of 2006.

The final graph shows the year over year percent change since June of 2003.


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