SAN FRANCISCO (MarketWatch) -- The secondary market that supports a big part of the U.S. mortgage industry has ground to a halt in recent days, a development that could dramatically increase the cost of home loans in expensive regions, experts said on Thursday.
The cost of making non-agency mortgage loans is about 102 cents for every 100 cents of the loan, Chow estimated. But right now mortgage originators can't sell the loans at 103, he noted.
To get selling prices up, loans will have to have much higher interest rates, he added.
"So that will feed through to a very substantial increase in the interest rates that home buyers will pay," Chow explained. "If home buyers are in loans that don't conform with Fannie or Freddie, given present market circumstances, they will have to pay at least 100 basis points more." (A basis point is one hundredth of a percentage point).
That will have a big impact on the housing market in California, Florida and other places where home prices are very high, he said.
"In these areas, if home buyers don't have much money as a down payment, their loans will be too large to conform with Fannie and Freddie's standards," Chow explained. "That means people will pay much higher interest rates."