$25 I Bond with 0.10% Fixed Rate Purchased March 2018

 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
2018 25.001.24%2.58%25.0525.1125.1625.2125.2725.32

From $25.00 to $25.32 over 0.5 years = 2.56% average annual increase compounded semi-annually.

Generated  11/17/17  15:21