https://www.treasurydirect.gov/indiv/research/indepth/ibonds...
https://www.treasurydirect.gov/indiv/research/indepth/ibonds...
"That rate is applied to the 6 months after the purchase is made. For example, if you buy an I bond on July 1, 2022, the 9.62% would be applied through December 31, 2022."
And here[1]:
"What's the interest rate on an I bond you sell today?
For the first six months you own it, the Series I bond we sell from May 2022 through October 2022 earns interest at an annual rate of 9.62 percent. A new rate will be set every six months based on this bond's fixed rate (0.00 percent) and on inflation."
I'm not sure what the next return is - either way given the current mark that's excellent, just important to know that there is a definite time limit on that interest rate.
[1] https://www.treasurydirect.gov/indiv/research/indepth/ibonds...
Just ask Greece, ca. 2010.
Greece's relationship to the Euro is more akin to an individual US state's relationship to the Dollar. No US state has Greek levels of debt. Greece's debt-to-GDP ratio was up to 180%. Most US states run at a ratio closer to 5-15%.