Ah, I see: https://www.treasurydirect.gov/indiv/research/indepth/ibonds/res_ibonds_iratesandterms.htm#change https://www.treasurydirect.gov/indiv/research/indep

Ah, I see: https://www.treasurydirect.gov/indiv/research/indepth/ibonds/res_ibonds_iratesandterms.htm#change https://www.treasurydirect.gov/indiv/research/indepth/ibonds... “We set the inflation rate every six months (on the first business day of May and on the first business day of November)” So by buying in April, the next rate change on your own bond would be in October, which would still be before the next inflation rate change.