Social Security Online Trust Fund Data
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Investment Holdings

February 9, 2016

The trust funds hold special issues—securities sold only to the trust funds. There are 2 types of such securities: short-term certificates of indebtedness and long-term bonds. The certificates of indebtedness are issued on a daily basis, and they mature on the next June 30 following the date of issue. Special-issue bonds, on the other hand, are normally acquired only when special issues of either type mature on June 30.

In the past, the trust funds have held securities available to the public. Currently, no such public issues are held.

Investments held by the Old-Age, Survivors, and Disability Insurance Trust Funds,
at end of year, 2007-2015
Year Invested amounts (in thousands) Weighted averages
Total Special Issues Public
Issues
Interest
rate (%)
Years to
maturity
Bonds Certificates of indebtedness
2007 $2,239,437,635 $2,121,784,895 $117,652,740 $0 5.120 7.279
2008 2,419,213,203 2,331,247,228 87,965,975 0 4.898 7.326
2009 2,518,540,890 2,462,381,505 56,159,385 0 4.688 7.436
2010 2,609,537,218 2,533,221,887 76,315,331 0 4.444 7.407
2011 2,678,894,873 2,610,304,089 68,590,784 0 4.199 7.388
2012 2,733,073,581 2,667,458,740 65,614,841 0 3.856 7.435
2013 2,765,212,571 2,700,548,949 64,663,622 0 3.626 7.466
2014 2,789,581,570 2,728,778,798 60,802,772 0 3.433 7.485
2015 2,786,619,202 2,747,683,764 38,935,438 0 3.225 7.558

Note on weighted averages: An average interest rate is weighted by the amount invested at each rate. Similarly, an average number of years to maturity is the time to maturity weighted by the amount for each maturity date.
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