Data through October 2007, released today by Standard & Poor’s for its S&P/Case-Shiller(R) Home Price Indices, the leading measure of U.S. home prices, show broadbased declines in the prices of existing single family homes across the United States, marking the 10th consecutive month of negative annual returns and the 23rd consecutive month of decelerating returns.

The 10-City Composite’s annual decline of 6.7% is a record low. The previous largest decline on record was 6.3% recorded in April 1991. In October, the 20-City Composite recorded an annual decline of 6.1%.

“No matter how you look at these data, it is obvious that the current state of the single-family housing market remains grim,” says Robert J. Shiller, Chief Economist at MacroMarkets LLC. “Not only did the 10-City Composite post a record low in its annual growth rate, but 11 of the 20 metro areas did the same. If you look at the monthly figures, every MSA went down in both October and September. Eleven of the 20 MSAs, in addition to the two composites, recorded their single largest monthly decline on record in October. For both the 10-City and 20-City composites this was a decline of 1.4% over September.”

Miami surpassed Tampa in October, reporting a double-digit annual decline of 12.4%. Tampa followed with -11.8%, Detroit with -11.2% and San Diego with - 11.1%. Six of the metro areas are now posting double digit declines in their annual growth rates. Atlanta and Dallas finally entered negative territory, with declines of 0.7% and 0.1%, respectively, leaving only Charlotte, Portland and Seattle as the MSAs still experiencing positive annual growth rates.