You can go to the web-site and check it out. They list the rate of each kind of bond and explain how they come up with the rate. Each rate is guaranteed for 6 months. It has a base rate of about 3.4% and then a rate added related to the rate of inflation. So it can never go below 3.4 and could be anything between. After 6 months they can be cashed with a 3 month interest penalty. If you have money sitting a saving account paying less, you might think about it. It really is more liquid than it seems. And if my daughter's college takes credit cards and I have the money to pay for it and the rate is good on the bonds, it will be there for retirement ( which might not be so far away.)I think it's a better deal the CD"S
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DtG