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

 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
201825.001.24%2.58%25.0525.1125.1625.2125.2725.321.11%2.32%25.3725.4225.4725.5225.562018
201925.611.16%2.42%25.6625.7125.7625.8225.8725.92

From $25.00 to $25.92 over 1.5 years = 2.42% average annual increase compounded semi-annually.

Generated  11/01/18  11:11