Default rates in July declined for first mortgages, but a larger number of homeowners fell behind on their second lien payments, according to data released jointly by Standard & Poor's and Experian. The companies' credit indices show defaulting balances on first mortgages were 3.2 percent last month, down from June's 3.3 percent, demonstrating continued improvement in the performance of first lien home loans. Second mortgage defaults, however, increased to 2.8 percent from 2.4 percent the month prior.
