$500 I Bond with 0.00% Fixed Rate Purchased September 2015

 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
2015 500.00-0.80%0.00%500.00500.00500.002015
2016500.00500.00500.000.77%1.54%500.60501.20502.00502.60503.20503.800.08%0.16%503.80504.00504.002016
2017504.00504.20504.201.38%2.76%505.40506.60507.60508.80510.00511.200.98%1.96%512.00512.80513.602017
2018514.60515.40516.201.24%2.48%517.20518.40519.40520.40521.60522.60

From $500.00 to $522.60 over 3.0 years = 1.48% average annual increase compounded semi-annually.

Generated  11/17/17  15:20