Maturities · Month-end record, Monthly Statement of the Public Debt

How much US Treasury debt was maturing within a year on 31 January 2010?

On 31 January 2010, $2.41 trillion of marketable US Treasury debt was due within 12 months, 0.5% less than a year earlier ($2.43 trillion on 31 January 2009), the smallest amount since 30 September 2008.

Marketable Treasury debt maturing each month, by kind

February 2010 to January 2011As of the month-end of 31 Jan 2010

$0.2T$0.4T$0.6TFebMarAprMayJunJulAugSepOctNovDecJan

February 2010 Bills $333.45B Notes and bonds $86.34B Total $419.79BMarch 2010 Bills $260.01B Notes and bonds $47.00B Total $307.00BApril 2010 Bills $331.99B Notes and bonds $47.75B TIPS and FRNs $31.97B Total $411.72BMay 2010 Bills $149.00B Notes and bonds $70.10B Total $219.10BJune 2010 Bills $215.99B Notes and bonds $47.22B Total $263.21BJuly 2010 Bills $213.02B Notes and bonds $47.42B Total $260.44BAugust 2010 Bills $52.00B Notes and bonds $72.05B Total $124.06BSeptember 2010 Bills $27.00B Notes and bonds $50.15B Total $77.15BOctober 2010 Bills $27.00B Notes and bonds $48.51B Total $75.51BNovember 2010 Bills $27.00B Notes and bonds $54.48B Total $81.48BDecember 2010 Bills $27.00B Notes and bonds $53.78B Total $80.78BJanuary 2011 Bills $26.00B Notes and bonds $54.70B TIPS and FRNs $13.67B Total $94.37B

Each kind

Bills
Notes and bonds
TIPS and FRNs

Each column is one month after the month-end, in parts by kind of security; pointing at a column shows them.

The linesLatest: 31 Jan 2010

Due within 12 months$2.41T
Bills$1.69T
Notes and bonds$679.50B
TIPS and FRNs$45.65B

Inspect and compare dates

What matures within 12 months of this month-end beside the same months counted from the month-end a year earlier, 31 January 2009. Every month is in the table under "The numbers behind the chart".

Debt due within 12 months of 31 January 2010 and of 31 January 2009 ($ million)
Measure	This month-end	A year earlier
Month-end	31 January 2010	31 January 2009
Due within 12 months	2,414,598	2,427,457
Bills	1,689,452	1,798,562
Notes	679,499	614,583
Bonds	0	0
TIPS	45,646	14,312
FRNs	0	0
Securities	62	67
Bills share	70.0%	74.1%

Observed 31 Jan 2010.

That month-end

February 2010 is the largest month, with $419.79 billion.

Bills, the securities that mature within a year of issue, were 70.0% of what was due in these months.

A year earlier

At the month-end a year before, 31 January 2009, $2.43 trillion was due within the next 12 months, against $2.41 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $7.19 trillion, by kind:

Bills $1.69T
Notes and bonds $4.93T
TIPS and FRNs $564.27B

Bills made up 23.5% of it. Weighted by amount, it had 56.4 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$2.41T was due within 12 months of the month-end of 31 Jan 2010, 70.0% of it in bills.

What does the maturity calendar show?

Treasury usually pays maturing debt with new borrowing, so the amount due is the amount Treasury rolls over into new securities.

Bills issued after the month-end are not here; the calendar filled with new bills every week.

The numbers behind the chart

How much was due in each of the 12 months after it?$ million, by kind

Marketable Treasury debt maturing each month ($ million)
Maturing in	Total	Bills	Notes	TIPS	Securities
February 2010	419,787	333,447	86,340	0	8
March 2010	307,005	260,007	46,997	0	6
April 2010	411,716	331,989	47,754	31,973	8
May 2010	219,103	149,005	70,098	0	7
June 2010	263,212	215,993	47,220	0	6
July 2010	260,438	213,016	47,422	0	7
August 2010	124,055	52,001	72,054	0	4
September 2010	77,147	26,998	50,149	0	3
October 2010	75,507	27,000	48,508	0	3
November 2010	81,480	26,999	54,481	0	3
December 2010	80,778	27,000	53,777	0	3
January 2011	94,369	25,997	54,699	13,673	4
All of these months	2,414,598	1,689,452	679,499	45,646	62

The table scrolls sideways; the first column stays in place.

What was all marketable debt made of?31 January 2010, $ million

Marketable Treasury debt outstanding at the month-end ($ million)
Kind	Amount, $ million	Share
Bills	1,689,452	23.5%
Notes	4,202,508	58.5%
Bonds	731,393	10.2%
TIPS	564,271	7.9%
Floating rate notes	0	0.0%
All marketable debt	7,187,625	100.0%

How much of it did the Federal Reserve hold?System Open Market Account, $ million

Maturing debt held in the Federal Reserve's System Open Market Account ($ million)
Maturing in	Total	Held by the Fed	Fed share
February 2010	419,787	24,134	5.7%
March 2010	307,005	4,867	1.6%
April 2010	411,716	8,747	2.1%
May 2010	219,103	9,253	4.2%
June 2010	263,212	3,620	1.4%
July 2010	260,438	3,438	1.3%
August 2010	124,055	7,100	5.7%
September 2010	77,147	3,983	5.2%
October 2010	75,507	2,609	3.5%
November 2010	81,480	6,100	7.5%
December 2010	80,778	5,922	7.3%
January 2011	94,369	3,663	3.9%

Observed 27 Jan 2010.

When are the figures from?

Observed 31 Jan 2010.

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Page updated 4 Oct 2026, 09:34 UTC

Sources

© 2026 Federal Reserve Bank of New York. Content from the New York Fed subject to the Terms of Use at newyorkfed.org. The Federal Reserve share of maturities is computed by 500metrics. (source) Terms: Federal Reserve Bank of New York terms of use.