$25 I Bond with 0.00% Fixed Rate Purchased February 2017

 Jan
1
Feb
1
Infla
tion
Rate
Com
posite
Rate
Mar
1
Apr
1
May
1
Jun
1
Jul
1
Aug
1
Infla
tion
Rate
Com
posite
Rate
Sep
1
Oct
1
Nov
1
Dec
1
2017 25.001.38%2.76%25.0625.1125.1725.2325.2925.350.98%1.96%25.3925.4325.4725.522017
201825.5625.601.24%2.48%25.6525.7125.7625.8125.8625.921.11%2.22%25.9726.0226.0626.112018
201926.1626.211.16%2.32%26.2626.3126.3626.4126.4626.51

From $25.00 to $26.51 over 2.5 years = 2.36% average annual increase compounded semi-annually.

Generated  11/01/18  11:11