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

How much US Treasury debt was maturing within a year on 31 January 2011?

On 31 January 2011, $2.65 trillion of marketable US Treasury debt was due within 12 months, 9.9% more than a year earlier ($2.41 trillion on 31 January 2010), the largest amount since 30 September 2009.

Marketable Treasury debt maturing each month, by kind

February 2011 to January 2012As of the month-end of 31 Jan 2011

$0.2T$0.4T$0.6TFebMarAprMayJunJulAugSepOctNovDecJan

February 2011 Bills $480.45B Notes and bonds $83.08B Total $563.53BMarch 2011 Bills $418.05B Notes and bonds $59.40B Total $477.44BApril 2011 Bills $256.01B Notes and bonds $58.89B TIPS and FRNs $22.24B Total $337.14BMay 2011 Bills $138.01B Notes and bonds $58.43B Total $196.44BJune 2011 Bills $190.02B Notes and bonds $58.66B Total $248.68BJuly 2011 Bills $137.01B Notes and bonds $59.88B Total $196.89BAugust 2011 Bills $25.00B Notes and bonds $87.40B Total $112.40BSeptember 2011 Bills $25.00B Notes and bonds $61.26B Total $86.26BOctober 2011 Bills $24.00B Notes and bonds $61.27B Total $85.27BNovember 2011 Bills $23.00B Notes and bonds $91.80B Total $114.80BDecember 2011 Bills $22.00B Notes and bonds $90.28B Total $112.28BJanuary 2012 Bills $22.00B Notes and bonds $92.13B TIPS and FRNs $7.40B Total $121.53B

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 2011

Due within 12 months$2.65T
Bills$1.76T
Notes and bonds$862.48B
TIPS and FRNs$29.64B

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 2010. Every month is in the table under "The numbers behind the chart".

Debt due within 12 months of 31 January 2011 and of 31 January 2010 ($ million)
Measure	This month-end	A year earlier
Month-end	31 January 2011	31 January 2010
Due within 12 months	2,652,663	2,414,598
Bills	1,760,544	1,689,452
Notes	862,478	679,499
Bonds	0	0
TIPS	29,641	45,646
FRNs	0	0
Securities	63	62
Bills share	66.4%	70.0%

Observed 31 Jan 2011.

That month-end

February 2011 is the largest month, with $563.53 billion.

Bills, the securities that mature within a year of issue, were 66.4% of what was due in these months.

A year earlier

At the month-end a year before, 31 January 2010, $2.41 trillion was due within the next 12 months, against $2.65 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $8.95 trillion, by kind:

Bills $1.76T
Notes and bonds $6.58T
TIPS and FRNs $615.81B

Bills made up 19.7% of it. Weighted by amount, it had 59.2 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$2.65T was due within 12 months of the month-end of 31 Jan 2011, 66.4% 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 2011	563,532	480,450	83,082	0	7
March 2011	477,440	418,045	59,395	0	7
April 2011	337,143	256,013	58,888	22,243	7
May 2011	196,446	138,014	58,431	0	6
June 2011	248,680	190,017	58,662	0	7
July 2011	196,889	137,007	59,882	0	6
August 2011	112,397	24,999	87,398	0	4
September 2011	86,262	25,000	61,262	0	3
October 2011	85,268	24,002	61,266	0	3
November 2011	114,797	22,996	91,801	0	4
December 2011	112,281	22,000	90,281	0	4
January 2012	121,529	22,000	92,130	7,399	5
All of these months	2,652,663	1,760,544	862,478	29,641	63

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

What was all marketable debt made of?31 January 2011, $ million

Marketable Treasury debt outstanding at the month-end ($ million)
Kind	Amount, $ million	Share
Bills	1,760,544	19.7%
Notes	5,672,143	63.3%
Bonds	905,885	10.1%
TIPS	615,814	6.9%
Floating rate notes	0	0.0%
All marketable debt	8,954,385	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 2011	563,532	19,722	3.5%
March 2011	477,440	4,933	1.0%
April 2011	337,143	9,466	2.8%
May 2011	196,446	9,259	4.7%
June 2011	248,680	3,413	1.4%
July 2011	196,889	2,948	1.5%
August 2011	112,397	5,600	5.0%
September 2011	86,262	3,425	4.0%
October 2011	85,268	4,030	4.7%
November 2011	114,797	10,493	9.1%
December 2011	112,281	5,621	5.0%
January 2012	121,529	7,551	6.2%

Observed 26 Jan 2011.

When are the figures from?

Observed 31 Jan 2011.

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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.