$500 I Bond with 0.00% Fixed Rate Purchased October 2008

 Jan
1
Feb
1
Mar
1
Apr
1
Infla
tion
Rate
Com
posite
Rate
May
1
Jun
1
Jul
1
Aug
1
Sep
1
Oct
1
Infla
tion
Rate
Com
posite
Rate
Nov
1
Dec
1
2008 500.002.42%4.84%502.00504.002008
2009506.00508.00510.00512.202.46%4.92%514.20516.40518.40520.60522.60524.80-2.78%0.00%524.80524.802009
2010524.80524.80524.80524.801.53%3.06%526.20527.40528.80530.20531.40532.800.77%1.54%533.40534.202010
2011534.80535.60536.20537.000.37%0.74%537.40537.60538.00538.40538.60539.002.30%4.60%541.00543.202011
2012545.20547.20549.40551.401.53%3.06%552.80554.20555.60557.00558.40559.801.10%2.20%560.80561.802012
2013562.80563.80565.00566.000.88%1.76%566.80567.60568.40569.40570.20571.000.59%1.18%571.60572.202013
2014572.60573.20573.80574.400.59%1.18%575.00575.60576.00576.60577.20577.800.92%1.84%578.60579.602014
2015580.40581.40582.20583.200.74%1.48%584.00584.60585.40586.00586.80587.60-0.80%0.00%587.60587.602015
2016587.60587.60587.60587.600.77%1.54%588.40589.20589.80590.60591.40592.200.08%0.16%592.20592.402016
2017592.40592.60592.60592.601.38%2.76%594.00595.40596.60598.00599.40600.800.98%1.96%601.80602.802017
2018603.80604.80605.80606.601.24%2.48%607.80609.00610.40611.60612.80614.201.11%2.22%615.40616.402018
2019617.60618.80619.80621.001.16%2.32%622.20623.40624.60625.80627.00628.200.70%1.40%629.00629.602019
2020630.40631.20631.80632.601.01%2.02%633.60634.80635.80636.80638.00639.000.53%1.06%639.60640.202020
2021640.60641.20641.80642.400.84%1.68%643.20644.20645.00646.00646.80647.801.77%3.54%649.60651.602021
2022653.60655.40657.40659.203.56%7.12%663.00667.00670.80674.80678.60682.604.81%9.62%688.00693.402022
2023698.80704.40709.80715.403.24%6.48%719.20723.00726.80730.80734.60738.601.69%3.38%740.60742.802023
2024744.80746.80749.00751.001.97%3.94%753.40755.80758.40760.80763.40765.801.48%2.96%767.60769.602024
2025771.40773.40775.20777.200.95%1.90%778.40779.60780.80782.20783.40784.601.43%2.86%786.40788.402025
2026790.20792.00794.00795.801.56%3.12%797.80800.00802.00804.00806.20808.201.67%3.34%810.40812.602026
2027815.00817.20819.40821.60

From $500.00 to $821.60 over 18.5 years = 2.70% average annual increase compounded semi-annually.

Generated  05/01/26  08:02