The 6 month jumbo CD rate at Five Star Bank has a new rate of 0.45 percent with a yield of 0.45 percent. The old 6 month jumbo CD interest rate was 0.50 percent with a yield of 0.50 percent. See how many times Five Star Bank has changed the rate on their 6 month jumbo certificate of deposit at 5 Star Bank 6 Month Jumbo CDs.