Mortgage Rate Sinks to 4.32 Percent 
Average interest on 30-year fixed mortgages fell this week to 4.32 percent, matching the lowest level on record. Interest on 15-year loans, meanwhile, declined to 3.75 percent, setting an all-time low. 

Investors have been flocking to the safety of Treasury bonds since the spring, which has driven down their yields and helped to keep rates at or near the lowest levels in decades.

Source: Boston Globe (10/01/10)