$500 I Bond with 0.10% Fixed Rate Purchased May 2014

 Jan
1
Feb
1
Mar
1
Apr
1
May
1
Infla
tion
Rate
Com
posite
Rate
Jun
1
Jul
1
Aug
1
Sep
1
Oct
1
Nov
1
Infla
tion
Rate
Com
posite
Rate
Dec
1
2014 500.000.92%1.94%500.80501.60502.40503.20504.00504.800.74%1.58%505.402014
2015506.20506.80507.40508.20508.80-0.80%0.00%508.80508.80508.80508.80508.80508.800.77%1.64%509.402015
2016510.20510.80511.60512.20513.000.08%0.26%513.20513.20513.40513.40513.60513.601.38%2.86%514.802016
2017516.00517.20518.40519.80521.000.98%2.06%521.80522.80523.60524.60525.40526.401.24%2.58%527.602017
2018528.60529.80531.00532.00533.201.11%2.32%534.20535.20536.20537.40538.40539.40

From $500.00 to $539.40 over 4.5 years = 1.69% average annual increase compounded semi-annually.

Generated  05/01/18  10:11