Rising interest rates threaten to dim prospects for a housing recovery and choke off a refinance wave that was a major plank of the Obama administration's economic-stimulus efforts.

On Wednesday, rates on 30-year fixed-rate mortgages climbed to 5.79%, up from 5% two weeks ago, according to HSH Associates. That jump will cut roughly in half the number of borrowers with an incentive to refinance, according to FTN Financial.

Refinance activity at J.P. Morgan Chase & Co. is already "really down" since rates began rising, a spokesman says.

Wall Street Journal