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

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

On 31 March 2011, $2.66 trillion of marketable US Treasury debt was due within 12 months, 3.4% more than a year earlier ($2.58 trillion on 31 March 2010).

Marketable Treasury debt maturing each month, by kind

April 2011 to March 2012As of the month-end of 31 Mar 2011

$0.2T$0.4T$0.6TAprMayJunJulAugSepOctNovDecJanFebMar

April 2011 Bills $484.44B Notes and bonds $58.89B TIPS and FRNs $22.38B Total $565.71BMay 2011 Bills $271.01B Notes and bonds $58.43B Total $329.44BJune 2011 Bills $350.03B Notes and bonds $58.66B Total $408.69BJuly 2011 Bills $137.01B Notes and bonds $59.88B Total $196.89BAugust 2011 Bills $145.00B Notes and bonds $87.40B Total $232.40BSeptember 2011 Bills $175.01B Notes and bonds $61.26B Total $236.27BOctober 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 $7.45B Total $121.58BFebruary 2012 Bills $22.00B Notes and bonds $120.13B Total $142.12BMarch 2012 Bills $23.00B Notes and bonds $96.45B Total $119.45B

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 Mar 2011

Due within 12 months$2.66T
Bills$1.70T
Notes and bonds$936.58B
TIPS and FRNs$29.83B

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

Debt due within 12 months of 31 March 2011 and of 31 March 2010 ($ million)
Measure	This month-end	A year earlier
Month-end	31 March 2011	31 March 2010
Due within 12 months	2,664,906	2,577,836
Bills	1,698,500	1,843,478
Notes	936,576	688,639
Bonds	0	0
TIPS	29,830	45,719
FRNs	0	0
Securities	66	61
Bills share	63.7%	71.5%

Observed 31 Mar 2011.

That month-end

April 2011 is the largest month, with $565.71 billion.

Bills, the securities that mature within a year of issue, were 63.7% of what was due in these months.

A year earlier

At the month-end a year before, 31 March 2010, $2.58 trillion was due within the next 12 months, against $2.66 trillion at this one.

All marketable debt

Marketable Treasury debt outstanding at the month-end was $9.12 trillion, by kind:

Bills $1.70T
Notes and bonds $6.78T
TIPS and FRNs $640.84B

Bills made up 18.6% of it. Weighted by amount, it had 60.4 months to go until it matures, on average.

Each kind, in millions

Understanding the maturity calendar

Where it stands today

$2.66T was due within 12 months of the month-end of 31 Mar 2011, 63.7% 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
April 2011	565,713	484,441	58,888	22,384	8
May 2011	329,444	271,013	58,431	0	6
June 2011	408,695	350,032	58,662	0	7
July 2011	196,889	137,007	59,882	0	6
August 2011	232,402	145,004	87,398	0	7
September 2011	236,272	175,010	61,262	0	7
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	121,576	22,000	92,130	7,446	5
February 2012	142,124	21,996	120,128	0	5
March 2012	119,447	23,000	96,447	0	4
All of these months	2,664,906	1,698,500	936,576	29,830	66

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

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

Marketable Treasury debt outstanding at the month-end ($ million)
Kind	Amount, $ million	Share
Bills	1,698,500	18.6%
Notes	5,847,830	64.1%
Bonds	935,250	10.3%
TIPS	640,840	7.0%
Floating rate notes	0	0.0%
All marketable debt	9,122,421	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
April 2011	565,713	25,492	4.5%
May 2011	329,444	9,259	2.8%
June 2011	408,695	3,413	0.8%
July 2011	196,889	2,948	1.5%
August 2011	232,402	5,600	2.4%
September 2011	236,272	3,425	1.4%
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	121,576	7,551	6.2%
February 2012	142,124	14,491	10.2%
March 2012	119,447	14,212	11.9%

Observed 30 Mar 2011.

When are the figures from?

Observed 31 Mar 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.