The CPI-U value increased from September's value of 231.407 to a value of 232.773 in March 2013. The resulting 0.59% semi-annual increase translates to a...
The Investor's Manifesto
The Investor's Manifesto will help you understand the nuts and bolts of executing a lifetime investment plan, including: how to survive dealing with the investment industry, the practical meaning of market efficiency, how much to save, and what vehicles to use to achieve financial security and freedom.
Print page
Historical Composite
I Bond Rates
The composite rate of the I Bond at any time is based
on the Fixed Value and the Variable Value. The Rate is based on the following formula
established by the Treasury:
Composite Rate = Fixed rate + 2 * CPI-U Rate
+
(Fixed rate * CPI-U Rate)
| Mean: |
3.74% |
| Median: |
3.91% |
| Highest rate: |
7.49% |
| Lowest rate: |
0.00% |
|
November 2014
|
1.48%
|
|
May 2014
|
1.94%
|
|
November 2013
|
1.38%
|
|
May 2013
|
1.18%
|
|
November 2012
|
1.76%
|
|
May 2012
|
2.20%
|
|
November 2011
|
3.06%
|
|
May 2011
|
4.60%
|
|
November 2010
|
0.74%
|
|
May 2010
|
1.74%
|
|
November 2009
|
3.36%
|
|
May 2009
|
0.00%
|
|
November 2008
|
5.64%
|
|
May 2008
|
4.84%
|
|
November 2007
|
4.28%
|
|
May 2007
|
3.74%
|
|
November 2006
|
4.52%
|
|
May 2006
|
2.41%
|
|
November 2005
|
6.73%
|
|
May 2005
|
4.80%
|
|
November 2004
|
3.67%
|
|
May 2004
|
3.39%
|
|
November 2003
|
2.19%
|
|
May 2003
|
4.66%
|
|
November 2002
|
4.08%
|
|
May 2002
|
2.57%
|
|
November 2001
|
4.40%
|
|
May 2001
|
5.92%
|
|
November 2000
|
6.49%
|
|
May 2000
|
7.49%
|
|
November 1999
|
6.98%
|
|
May 1999
|
5.05%
|
|
November 1998
|
5.05%
|
|
September 1998
|
4.66%
|
This graph shows the value of a new I Bond's rate for the first 6 months.
After 6 months, the variable rate would change based on changes in the CPI-U rate.
Related Topics
Page last modified 9/25/2011