$500 I Bond with 0.00% Fixed Rate Purchased July 2017

 Jan
1
Infla
tion
Rate
Com
posite
Rate
Feb
1
Mar
1
Apr
1
May
1
Jun
1
Jul
1
Infla
tion
Rate
Com
posite
Rate
Aug
1
Sep
1
Oct
1
Nov
1
Dec
1
2017 500.000.98%1.96%500.80501.60502.40503.20504.002017
2018505.001.24%2.48%506.00507.00508.20509.20510.20511.201.11%2.22%512.20513.00514.00515.00516.002018
2019516.80

From $500.00 to $516.80 over 1.5 years = 2.22% average annual increase compounded semi-annually.

Generated  05/01/18  10:11