Sol, you're right... here's a little more info from something I posted on here a while back:
1) What are mortgage interest rates based on? (The only correct answer is Mortgage Backed Securities or Mortgage Bonds, NOT the 10-year Treasury Note. While the 10-year Treasury Note sometimes trends in the same direction as Mortgage Bonds, it is not unusual to see them move in completely opposite directions. DO NOT work with a lender who has their eyes on the wrong indicators.)
2) What is the next Economic Report or event that could cause interest rate movement? (A professional lender will have this at their fingertips).
3) When Bernanke and the Fed "change rates", what does this mean… and what impact does this have on mortgage interest rates? (The answer may surprise you. When the Fed makes a move, they can change a rate called the "Fed Funds Rate" or "Discount Rate". These are both very short- term rates that impact credit cards, Home Equity credit lines, auto loans and the like. On the day of the Fed move, mortgage rates most often will actually move in the opposite direction as the Fed change. This is due to the dynamics within the financial markets in response to inflation.