What's up with I-Bond interest rates for bonds issued in April/October?

linuxguy@lemmy.gregw.us to Finance@beehaw.org – 8 points –

Picture taken straight from my account at TreasuryDirect. I know that i-bond interest rates reset every 6 months but it looks like bonds issued in April and October get special treatment? Seeing this, I'm not sure why I wouldn't just make two purchases a year, only in April and October, and reap almost double the gains? I feel like I'm missing something obvious here.

2

Hi OP. The “inflation” component of an I-Bonds interest rate adjusts every six months. Your April and October bonds are still using the old “inflation” rates. They’ll fall in line at the beginning of next month when they adjust to the current rates. Simultaneously, you’ll also see the May and November I-Bonds adjust to newer rates.

Of course I just happened to look at my account when there was only one "tranche" of bonds that hadn't adjusted and it looked like there was a weird pattern going on. Thanks for clarifying!