$1,000 I Bond with 0.30% Fixed Rate Purchased September 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 1,000.001.11%2.52%1,002.001,004.001,006.402018
20191,008.401,010.401,012.801.16%2.62%1,014.801,017.201,019.601,021.601,024.001,026.000.70%1.70%1,027.601,028.801,030.402019
20201,032.001,033.201,034.801.01%2.32%1,036.801,038.801,040.801,042.801,044.801,046.80

From $1,000.00 to $1,046.80 over 2.0 years = 2.30% average annual increase compounded semi-annually.

Generated  11/01/19  10:11