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The purchase application index has been highlighted as a particularly important data series as it very broadly captures the demand side of residential real estate for both new and existing home purchases.
The latest data is showing that the average rate for a 30 year fixed rate mortgage decreased slightly since last week to 6.09% while the purchase volume increased 6.1% and the refinance volume decreased 15.3% compared to last weeks results.
It’s important to note that the data is reported (and charted) weekly and that the rate data represents average interest rates, and the index data represents mortgage loan application volume for home purchases, home refinances and a composite of all loans.
The following chart shows how the principle and interest cost and estimated annual income required to cover the PITI (using the 29% “rule of thumb”) on a $400,000 loan has changed since January 2007.