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

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

On 31 July 2010, $2.54 trillion of marketable US Treasury debt was due within 12 months, 7.0% less than a year earlier ($2.73 trillion on 31 July 2009).

Marketable Treasury debt maturing each month, by kind

August 2010 to July 2011As of the month-end of 31 Jul 2010

$0.2T$0.4T$0.6TAugSepOctNovDecJanFebMarAprMayJunJul

August 2010 Bills $513.44B Notes and bonds $72.05B Total $585.50BSeptember 2010 Bills $406.04B Notes and bonds $50.15B Total $456.18BOctober 2010 Bills $253.01B Notes and bonds $48.51B Total $301.52BNovember 2010 Bills $130.00B Notes and bonds $54.48B Total $184.48BDecember 2010 Bills $163.01B Notes and bonds $53.78B Total $216.79BJanuary 2011 Bills $146.00B Notes and bonds $54.70B TIPS and FRNs $13.79B Total $214.49BFebruary 2011 Bills $26.00B Notes and bonds $83.08B Total $109.08BMarch 2011 Bills $26.00B Notes and bonds $59.40B Total $85.39BApril 2011 Bills $26.00B Notes and bonds $58.89B TIPS and FRNs $22.18B Total $107.07BMay 2011 Bills $26.00B Notes and bonds $58.43B Total $84.43BJune 2011 Bills $50.00B Notes and bonds $58.66B Total $108.66BJuly 2011 Bills $25.00B Notes and bonds $59.88B Total $84.88B

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 Jul 2010

Due within 12 months$2.54T
Bills$1.79T
Notes and bonds$712.01B
TIPS and FRNs$35.97B

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 July 2009. Every month is in the table under "The numbers behind the chart".

Debt due within 12 months of 31 July 2010 and of 31 July 2009 ($ million)
Measure	This month-end	A year earlier
Month-end	31 July 2010	31 July 2009
Due within 12 months	2,538,481	2,730,044
Bills	1,790,503	2,020,483
Notes	712,010	663,565
Bonds	0	0
TIPS	35,968	45,995
FRNs	0	0
Securities	61	68
Bills share	70.5%	74.0%

Observed 31 Jul 2010.

That month-end

August 2010 is the largest month, with $585.50 billion.

Bills, the securities that mature within a year of issue, were 70.5% of what was due in these months.

A year earlier

At the month-end a year before, 31 July 2009, $2.73 trillion was due within the next 12 months, against $2.54 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $8.13 trillion, by kind:

Bills $1.79T
Notes and bonds $5.77T
TIPS and FRNs $576.91B

Bills made up 22.0% of it. Weighted by amount, it had 57.9 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$2.54T was due within 12 months of the month-end of 31 Jul 2010, 70.5% 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
August 2010	585,498	513,444	72,054	0	7
September 2010	456,185	406,035	50,149	0	7
October 2010	301,517	253,009	48,508	0	6
November 2010	184,484	130,002	54,481	0	6
December 2010	216,793	163,015	53,777	0	7
January 2011	214,487	145,997	54,699	13,790	7
February 2011	109,082	26,000	83,082	0	4
March 2011	85,395	26,000	59,395	0	3
April 2011	107,065	25,999	58,888	22,178	4
May 2011	84,431	26,000	58,431	0	3
June 2011	108,663	50,001	58,662	0	4
July 2011	84,882	25,000	59,882	0	3
All of these months	2,538,481	1,790,503	712,010	35,968	61

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

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

Marketable Treasury debt outstanding at the month-end ($ million)
Kind	Amount, $ million	Share
Bills	1,790,503	22.0%
Notes	4,946,927	60.8%
Bonds	819,769	10.1%
TIPS	576,911	7.1%
Floating rate notes	0	0.0%
All marketable debt	8,134,110	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
August 2010	585,498	19,585	3.3%
September 2010	456,185	3,983	0.9%
October 2010	301,517	2,609	0.9%
November 2010	184,484	6,100	3.3%
December 2010	216,793	5,922	2.7%
January 2011	214,487	3,674	1.7%
February 2011	109,082	7,585	7.0%
March 2011	85,395	4,933	5.8%
April 2011	107,065	9,457	8.8%
May 2011	84,431	9,259	11.0%
June 2011	108,663	3,413	3.1%
July 2011	84,882	2,948	3.5%

Observed 28 Jul 2010.

When are the figures from?

Observed 31 Jul 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.