TDTFvsSPTLETF Comparison

ETF 1

TDTF

Northern Trust iBoxx 5-Year Target Duration TIPS ETF

This fund is part of

Inflation-linked Bonds

-0.34%

Full TDTF fund page

ETF 2

SPTL

State Street SPDR Portfolio Long Term Treasury ETF

This fund is part of

US Government Bonds

-0.09%

Full SPTL fund page

Northern Trust iBoxx 5-Year Target Duration TIPS ETF (TDTF) belongs to the Inflation-linked Bonds segment. State Street SPDR Portfolio Long Term Treasury ETF (SPTL) is part of the US Government Bonds segment. Both ETFs have the same top 1 sector exposures: Sovereign. TDTF is more expensive with a Total Expense Ratio (TER) of 0.19%, versus 0.03% for SPTL. TDTF is up 0.23% year-to-date (YTD) with +$135M in YTD flows. SPTL performs worse with -4.15% YTD performance, and +$657M in YTD flows. Run a side-by-side ETF comparison of TDTF and SPTL below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

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TDTF vs SPTL performance and flow charts

Performance

Cumulative Flows

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Data Services

Historic performance and flows

Data as of 09/10/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	TDTF SPTL	-0.70%-1.23%	-0.82%-4.34%	+0.23%-4.15%	-0.19%-5.37%	+13.96%+1.23%	+4.29%-31.44%
Flows	TDTF SPTL	+$9M+$269M	+$40M+$1.18B	+$135M+$657M	+$208M+$91M	+$334M+$5.12B	+$521M+$10.13B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	TDTF SPTL	+3.27%+8.71%	+2.88%+8.37%	+4.14%+12.21%	+5.50%+14.42%
Max drawdown	TDTF SPTL	-1.30%-5.87%	-1.85%-7.84%	-3.32%-13.37%	-11.98%-41.05%
Max drawdown duration	TDTF SPTL	16d74d	129d194d	156d725d	1204d1741d

Trading data

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	TDTF	SPTL
Last sale 9/11/2026 at 1:30 PM	$23.02	$24.69
Previous close 09/10/2026	$23.13	$24.70
Consolidated volume 09/10/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of August 31, 2026

1-year trailing difference

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	TDTF	SPTL
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 9/11/2026 at 1:30 PM

Live

Closed

	TDTF	SPTL
Last price	$23.02	$24.69
1D performance	-0.48%	-0.04%
AuM	$1.04 B	$10.88 B
E/R	0.19%	0.03%

Characteristics

	TDTF	SPTL
Management strategy	Passive	Passive
Provider	Northern Trust	State Street Investment Management
Benchmark	Markit iBoxx 5-Year Target Duration TIPS Index	Bloomberg US Long Treasury Index
N° of holdings	16	99
Asset class	Bonds	Bonds
Trailing 12m distribution yield	Join	Join
Inception date	September 19, 2011	May 23, 2007
ESG	No	No

More TDTF data on Trackinsight

More SPTL data on Trackinsight

Exposure

Countries

TDTF

USA

100.61%

Other

-0.61%

SPTL

USA

98.17%

Other

1.83%

Sectors

TDTF

Sovereign

100.61%

Other

-0.61%

SPTL

Sovereign

98.17%

Other

1.83%

Diversification

TDTF

Total weight of top 15 holdings out of 15

98.36%

SPTL

Total weight of top 15 holdings out of 15

29.2%

Top 15 holdings

Data as of July 31, 2026

TDTF

USA, TIPS 1.25% 15apr2031, USD (X-2031)

12.57%

USA, TIPS 0.125% 15jan2032, USD (A-2032)

12.17%

USA, TIPS 0.125% 15jul2031, USD (D-2031)

11.71%

USA, TIPS 0.125% 15jan2031, USD (A-2031)

11.35%

USA, TIPS 2.125% 15jan2035, USD (A-2035)

5.39%

USA, TIPS 1.875% 15jul2034, USD (D-2034)

4.95%

USA, TIPS 1.75% 15jan2034, USD (A-2034)

4.69%

USA, TIPS 1.125% 15oct2030, USD (AE-2030)

4.68%

USA, TIPS 1.625% 15apr2030, USD (X-2030)

4.63%

USA, TIPS 1.125% 15jan2033, USD (A-2033)

4.55%

USA, TIPS 0.125% 15jul2030, USD (D-2030)

4.44%

USA, TIPS 0.625% 15jul2032, USD (D-2032)

4.39%

USA, TIPS 0.125% 15jan2030, USD (A-2030)

4.34%

USA, TIPS 1.375% 15jul2033, USD (D-2033)

4.27%

USA, TIPS 1.625% 15oct2029, USD (AE-2029)

4.24%

SPTL

USA, Bonds 4.75% 15aug2055, USD

2.17%

USA, Bonds 4.75% 15feb2056, USD

2.15%

USA, Bonds 4.75% 15may2055, USD

2.13%

USA, Bonds 5% 15may2056, USD

2.13%

USA, Bonds 4.625% 15may2054, USD

2.12%

USA, Bonds 4.625% 15feb2055, USD

2.10%

USA, Bonds 4.625% 15nov2055, USD

2.10%

USA, Bonds 4.5% 15nov2054, USD

2.07%

USA, Bonds 4.75% 15nov2053, USD

2.05%

USA, Bonds 4.25% 15aug2054, USD

1.96%

USA, Bonds 4.25% 15feb2054, USD

1.96%

USA, Bonds 4.125% 15aug2053, USD

1.77%

USA, Bonds 4% 15nov2052, USD

1.55%

USA, Bonds 1.75% 15aug2041, USD

1.48%

USA, Bonds 3.625% 15may2053, USD

1.46%

Frequently asked questions about TDTF and SPTL

How have the TDTF and SPTL ETFs performed in 2026?

As of September 10, 2026, TDTF is up 0.23% year-to-date (YTD), while SPTL has lost -4.15%. That puts TDTF better performer ahead so far this year.

Which ETF is attracting more investor money: TDTF or SPTL?

Year-to-date, the TDTF ETF saw +$135M in flows, compared to +$657M for SPTL.

Which ETF is more volatile: TDTF or SPTL?

Over the past year, TDTF had a volatility of 2.88%, while SPTL experienced 8.37%.

Which ETF is bigger: TDTF or SPTL?

As of September 10, 2026, TDTF holds $1.04 B in assets under management (AUM), while SPTL manages $10.88 B.

What sectors do the TDTF and SPTL ETFs invest in?

TDTF leans toward sectors like Sovereign. Meanwhile, SPTL focuses on Sovereign.

What are the top holdings of the TDTF ETF and SPTL ETF?

TDTF top holdings include USA, TIPS 1.25% 15apr2031, USD (X-2031), USA, TIPS 0.125% 15jan2032, USD (A-2032) and USA, TIPS 0.125% 15jul2031, USD (D-2031). SPTL holds in its top three: USA, Bonds 4.75% 15aug2055, USD, USA, Bonds 4.75% 15feb2056, USD and USA, Bonds 4.75% 15may2055, USD.

TDTFvsSPTLETF Comparison

Northern Trust iBoxx 5-Year Target Duration TIPS ETF

State Street SPDR Portfolio Long Term Treasury ETF

TDTF vs SPTL performance and flow charts

Performance

Cumulative Flows

Get all the metrics on this page, and more, through a reliable ETF data feed

Countries

Sectors

Diversification

Top 15 holdings

How have the TDTF and SPTL ETFs performed in 2026?

As of September 10, 2026, TDTF is up 0.23% year-to-date (YTD), while SPTL has lost -4.15%. That puts TDTF better performer ahead so far this year.

Which ETF is attracting more investor money: TDTF or SPTL?

Year-to-date, the TDTF ETF saw +$135M in flows, compared to +$657M for SPTL.

Which ETF is more volatile: TDTF or SPTL?

Over the past year, TDTF had a volatility of 2.88%, while SPTL experienced 8.37%.

Which ETF is bigger: TDTF or SPTL?

As of September 10, 2026, TDTF holds $1.04 B in assets under management (AUM), while SPTL manages $10.88 B.

What sectors do the TDTF and SPTL ETFs invest in?

TDTF leans toward sectors like Sovereign. Meanwhile, SPTL focuses on Sovereign.

What are the top holdings of the TDTF ETF and SPTL ETF?

TDTF top holdings include USA, TIPS 1.25% 15apr2031, USD (X-2031), USA, TIPS 0.125% 15jan2032, USD (A-2032) and USA, TIPS 0.125% 15jul2031, USD (D-2031). SPTL holds in its top three: USA, Bonds 4.75% 15aug2055, USD, USA, Bonds 4.75% 15feb2056, USD and USA, Bonds 4.75% 15may2055, USD.

Which ETF is more diversified: TDTF or SPTL?

TDTF holds 16 securities with 98.36% of its assets in the top 15. SPTL has 99 securities and a top 15 weight of 29.2%.

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