Jumbo rates have risen from just last week. Amerisave is at 6.75%, Countrywide is a full point higher and Bank of America well beyond that.
Some other lenders, like Countrywide, apparently believe that they can't sell the loans to investors in the secondary market and are simply pricing themselves out of certain types of loans. One example: Wells Fargo, which had sharply hiked rates through brokers.
Like subprime loans, jumbos are considered riskier because they can't be bought by Fannie Mae and Freddie Macand repackaged as securities with an implied government guarantee.
August, of course, is always a slow month for real estate, second only to Christmas. So home sales have been erratic.