So then you've lost only 3 mos interest, right?You have to hold 5 years or you pay a 3 month penalty. 12 months is the minimum hold time, but you’d pay penalty before 5 years.
The rate is not know, just guess from a few financial firms I follow that have some formula off Cpi. They have been pretty spot on for the last rate adjustments.
I've noticed that they've paid a higher rate than the high yield savings accounts. Don't know about TBills. Don't they require a substantial minimum?