$1,000 I Bond with 0.00% Fixed Rate Purchased September 2021

 Jan
1
Feb
1
Mar
1
Infla
tion
Rate
Com
posite
Rate
Apr
1
May
1
Jun
1
Jul
1
Aug
1
Sep
1
Infla
tion
Rate
Com
posite
Rate
Oct
1
Nov
1
Dec
1
2021 1,000.001.77%3.54%1,002.801,006.001,008.802021
20221,011.601,014.801,017.603.56%7.12%1,023.601,029.601,035.601,041.601,047.601,054.004.81%9.62%1,062.401,070.801,079.202022
20231,087.601,096.001,104.803.24%6.48%1,110.801,116.801,122.401,128.401,134.401,140.40

From $1,000.00 to $1,140.40 over 2.0 years = 6.68% average annual increase compounded semi-annually.

Generated  11/01/22  11:42