TDTTvsTLTETF Comparison

ETF 1

TDTT

FlexShares iBoxx 3-Year Target Duration TIPS Index Fund ETF

This fund is part of

Inflation-linked Bonds

-0.01%

Full TDTT fund page

ETF 2

TLT

iShares 20+ Year Treasury Bond ETF

This fund is part of

US Government Bonds

-0.23%

Full TLT fund page

FlexShares iBoxx 3-Year Target Duration TIPS Index Fund ETF (TDTT) belongs to the Inflation-linked Bonds segment. iShares 20+ Year Treasury Bond ETF (TLT) is part of the US Government Bonds segment. TDTT's top 1 sector exposures are Sovereign. In contrast, TLT's top sector exposures are Sovereign and Non-Corporate. TDTT is more expensive with a Total Expense Ratio (TER) of 0.19%, versus 0.15% for TLT. TDTT is up 1.49% year-to-date (YTD) with +$55M in YTD flows. TLT performs worse with -3.27% YTD performance, and +$2.13B in YTD flows. Run a side-by-side ETF comparison of TDTT and TLT 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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TDTT vs TLT performance and flow charts

Performance

Cumulative Flows

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Data Services

Historic performance and flows

Data as of 09/01/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	TDTT TLT	+0.03%-0.02%	-0.40%-3.09%	+1.49%-3.27%	+1.57%-0.02%	+15.42%-1.99%	+13.23%-34.42%
Flows	TDTT TLT	+$2M+$5.56B	+$25M+$5.98B	+$55M+$2.13B	-$131M+$1.78B	+$595M+$13.29B	+$1.33B+$47.29B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	TDTT TLT	+1.98%+9.64%	+1.76%+9.36%	+2.57%+13.32%	+3.47%+15.49%
Max drawdown	TDTT TLT	-0.85%-6.21%	-0.96%-8.29%	-1.47%-14.78%	-6.94%-43.68%
Max drawdown duration	TDTT TLT	84d64d	120d184d	22d715d	819d1731d

Trading data

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	TDTT	TLT
Last sale 9/2/2026 at 1:30 PM	$23.53	$81.95
Previous close 09/01/2026	$23.54	$81.87
Consolidated volume 09/01/2026
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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	TDTT	TLT
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 9/2/2026 at 1:30 PM

Live

Closed

	TDTT	TLT
Last price	$23.53	$81.95
1D performance	-0.04%	+0.10%
AuM	$2.53 B	$46.93 B
E/R	0.19%	0.15%

Characteristics

	TDTT	TLT
Management strategy	Passive	Passive
Provider	FlexShares	iShares
Benchmark	Markit iBoxx 3-Year Target Duration TIPS Index	ICE U.S. Treasury 20+ Year Bond Index
N° of holdings	21	47
Asset class	Bonds	Fixed Income
Trailing 12m distribution yield	Join	Join
Inception date	September 19, 2011	July 22, 2002
ESG	No	No

More TDTT data on Trackinsight

More TLT data on Trackinsight

Exposure

Countries

TDTT

USA

100.37%

Other

-0.37%

TLT

USA

100%

Other

Sectors

TDTT

Sovereign

100.37%

Other

-0.37%

TLT

Sovereign

100%

Other

Diversification

TDTT

Total weight of top 15 holdings out of 15

88.09%

TLT

Total weight of top 15 holdings out of 15

59.52%

Top 15 holdings

Data as of July 31, 2026

TDTT

USA, TIPS 0.25% 15jul2029, USD (D-2029)

11.35%

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

11.18%

USA, TIPS 0.875% 15jan2029, USD (A-2029)

10.67%

USA, TIPS 2.125% 15apr2029, USD (X-2029)

10.64%

USA, TIPS 3.875% 15apr2029, USD

9.40%

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

3.90%

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

3.66%

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

3.61%

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

3.55%

USA, TIPS 0.5% 15jan2028, USD (A-2028)

3.47%

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

3.46%

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

3.44%

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

3.39%

USA, TIPS 0.75% 15jul2028, USD (D-2028)

3.23%

USA, TIPS 2.375% 15oct2028, USD (AE-2028)

3.13%

TLT

USA, Bonds 4.125% 15aug2053, USD

4.68%

USA, Bonds 4.75% 15nov2053, USD

4.55%

USA, Bonds 4.75% 15may2055, USD

4.51%

USA, Bonds 4.625% 15may2054, USD

4.45%

USA, Bonds 4.25% 15feb2054, USD

4.13%

USA, Bonds 4.75% 15feb2056, USD

4.04%

USA, Bonds 4.25% 15aug2054, USD

4.03%

USA, Bonds 3.625% 15may2053, USD

3.90%

USA, Bonds 4.625% 15feb2055, USD

3.89%

USA, Bonds 2% 15aug2051, USD

3.80%

USA, Bonds 4.5% 15nov2054, USD

3.79%

USA, Bonds 1.875% 15nov2051, USD

3.79%

USA, Bonds 4% 15nov2052, USD

3.66%

USA, Bonds 4.625% 15nov2055, USD

3.25%

USA, Bonds 3.625% 15feb2053, USD

3.04%

Frequently asked questions about TDTT and TLT

How have the TDTT and TLT ETFs performed in 2026?

As of September 1, 2026, TDTT is up 1.49% year-to-date (YTD), while TLT has lost -3.27%. That puts TDTT better performer ahead so far this year.

Which ETF is attracting more investor money: TDTT or TLT?

Year-to-date, the TDTT ETF saw +$55M in flows, compared to +$2.13B for TLT.

Which ETF is more volatile: TDTT or TLT?

Over the past year, TDTT had a volatility of 1.76%, while TLT experienced 9.36%.

Which ETF is bigger: TDTT or TLT?

As of September 1, 2026, TDTT holds $2.53 B in assets under management (AUM), while TLT manages $46.93 B.

What sectors do the TDTT and TLT ETFs invest in?

TDTT leans toward sectors like Sovereign. Meanwhile, TLT focuses on Sovereign.

What are the top holdings of the TDTT ETF and TLT ETF?

TDTT top holdings include USA, TIPS 0.25% 15jul2029, USD (D-2029), USA, TIPS 1.625% 15oct2029, USD (AE-2029) and USA, TIPS 0.875% 15jan2029, USD (A-2029). TLT holds in its top three: USA, Bonds 4.125% 15aug2053, USD, USA, Bonds 4.75% 15nov2053, USD and USA, Bonds 4.75% 15may2055, USD.

TDTTvsTLTETF Comparison

FlexShares iBoxx 3-Year Target Duration TIPS Index Fund ETF

iShares 20+ Year Treasury Bond ETF

TDTT vs TLT 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 TDTT and TLT ETFs performed in 2026?

As of September 1, 2026, TDTT is up 1.49% year-to-date (YTD), while TLT has lost -3.27%. That puts TDTT better performer ahead so far this year.

Which ETF is attracting more investor money: TDTT or TLT?

Year-to-date, the TDTT ETF saw +$55M in flows, compared to +$2.13B for TLT.

Which ETF is more volatile: TDTT or TLT?

Over the past year, TDTT had a volatility of 1.76%, while TLT experienced 9.36%.

Which ETF is bigger: TDTT or TLT?

As of September 1, 2026, TDTT holds $2.53 B in assets under management (AUM), while TLT manages $46.93 B.

What sectors do the TDTT and TLT ETFs invest in?

TDTT leans toward sectors like Sovereign. Meanwhile, TLT focuses on Sovereign.

What are the top holdings of the TDTT ETF and TLT ETF?

TDTT top holdings include USA, TIPS 0.25% 15jul2029, USD (D-2029), USA, TIPS 1.625% 15oct2029, USD (AE-2029) and USA, TIPS 0.875% 15jan2029, USD (A-2029). TLT holds in its top three: USA, Bonds 4.125% 15aug2053, USD, USA, Bonds 4.75% 15nov2053, USD and USA, Bonds 4.75% 15may2055, USD.

Which ETF is more diversified: TDTT or TLT?

TDTT holds 21 securities with 88.09% of its assets in the top 15. TLT has 47 securities and a top 15 weight of 59.52%.

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