"The percentage of mortgages in arrears in the category of loans one rung above subprime, so-called alternative-A mortgages, quadrupled to 12 percent in April from a year earlier. Delinquencies among prime loans, which account for most of the $12 trillion market, doubled to 2.7 percent in that time."

"The first wave of Americans to default on their home mortgages appears to be cresting, but a second, far larger one is quickly building."

"Homeowners with good credit are falling behind on their payments in growing numbers, even as the problems with mortgages made to people with weak, or subprime, credit are showing their first, tentative signs of leveling off after two years of spiraling defaults."

'“Subprime was the tip of the iceberg,” said Thomas H. Atteberry, president of First Pacific Advisors, a investment firm in Los Angeles that trades mortgage securities. “Prime will be far bigger in its impact.”'

"Many borrowers who got these loans during the boom had good credit scores, but many of them owe more than their homes are worth. Analysts believe that many will not be able to or want to make higher payments."

'“The wave on the prime side has lagged the wave on the subprime side,” said Rod Dubitsky, head of asset-backed research at Credit Suisse. “The reset of option ARM loans is a big event that will drive the timing of delinquencies.”'

"Defaults are likely to accelerate because many homeowners’ monthly payments are rising rapidly. The higher bills come as home prices continue to decline and banks tighten their lending standards, making it harder for people to refinance loans or sell their homes. Of particular concern are “alt-A” loans, many of which were made to people with good credit scores without proof of their income or assets."

"What will sting borrowers more than rising interest rates, analysts say, is having to pay interest and principal every month after spending several years paying only interest or sometimes even less than that. Such loan terms were popular during the boom with alt-A and prime borrowers and appeared appealing while home prices were rising and interest rates were low.
But now, some borrowers could see their payments jump 50 percent or more, and they may not be able to sell their properties for as much as they owe."

"Delinquencies in prime and alt-A loans are particularly challenging for banks because they hold more such loans on their books than they do subprime mortgages. Downey Financial, which owns a savings bank that operates in California and Arizona, recently reported that 11.2 percent of its loans were delinquent at the end of June, a big increase from the 6.1 percent that were past due at the end of last year."

"The wave of foreclosures is still rising in states like California, where many homeowners turned to creative mortgages during the boom. From April to June, mortgage companies filed 121,000 notices of default in California, up nearly 7 percent from the first quarter and more than twice as many as in the second quarter of 2007, according to DataQuick, a real estate data firm based in La Jolla, Calif. The firm said the median age of the loans increased to 26 months from 16 months a year earlier."