SPTBvsTLTETF Comparison

ETF 1

SPTB

State Street SPDR Portfolio Treasury ETF

This fund is part of

US Government Bonds

-0.29%

Full SPTB fund page

ETF 2

TLT

iShares 20+ Year Treasury Bond ETF

This fund is part of

US Government Bonds

-0.29%

Full TLT fund page

State Street SPDR Portfolio Treasury ETF (SPTB) and iShares 20+ Year Treasury Bond ETF (TLT) belong to the same industry segment: US Government Bonds. SPTB's top 1 sector exposures are Sovereign. In contrast, TLT's top sector exposures are Sovereign and Non-Corporate. SPTB is less expensive with a Total Expense Ratio (TER) of 0.03%, versus 0.15% for TLT. SPTB is down -0.35% year-to-date (YTD) with +$234M in YTD flows. TLT performs worse with -2.48% YTD performance, and +$1.66B in YTD flows. Run a side-by-side ETF comparison of SPTB 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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SPTB vs TLT performance and flow charts

Performance

Cumulative Flows

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Data Services

Historic performance and flows

Data as of 08/28/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	SPTB TLT	-0.18%-1.26%	-0.36%-2.21%	-0.35%-2.48%	+1.21%-0.63%	n/a-1.37%	n/a-34.21%
Flows	SPTB TLT	+$89M+$4.41B	+$110M+$4.66B	+$234M+$1.66B	+$292M+$1.28B	-+$12.95B	-+$46.65B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	SPTB TLT	+3.59%+9.59%	+3.48%+9.39%	n/a+13.34%	n/a+15.49%
Max drawdown	SPTB TLT	-1.52%-6.21%	-2.90%-8.29%	n/a-14.78%	n/a-43.68%
Max drawdown duration	SPTB TLT	60d60d	180d180d	n/a711d	n/a1727d

Trading data

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	SPTB	TLT
Last sale 8/31/2026 at 1:30 PM	$29.59	$82.52
Previous close 08/28/2026	$29.63	$82.88
Consolidated volume 08/28/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of July 31, 2026

1-year trailing difference

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	SPTB	TLT
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 8/31/2026 at 1:30 PM

Live

Closed

	SPTB	TLT
Last price	$29.59	$82.52
1D performance	-0.13%	-0.43%
AuM	$376.21 M	$47.02 B
E/R	0.03%	0.15%

Characteristics

	SPTB	TLT
Management strategy	Passive	Passive
Provider	State Street Investment Management	iShares
Benchmark	Bloomberg US Treasury Index	ICE U.S. Treasury 20+ Year Bond Index
N° of holdings	285	47
Asset class	Bonds	Fixed Income
Trailing 12m distribution yield	Join	Join
Inception date	May 20, 2024	July 22, 2002
ESG	No	No

More SPTB data on Trackinsight

More TLT data on Trackinsight

Exposure

Countries

SPTB

USA

98.65%

Other

1.35%

TLT

USA

100%

Other

Sectors

SPTB

Sovereign

98.65%

Other

1.35%

TLT

Sovereign

100%

Other

Diversification

SPTB

Total weight of top 15 holdings out of 15

11.21%

TLT

Total weight of top 15 holdings out of 15

59.52%

Top 15 holdings

Data as of July 31, 2026

SPTB

USA, Notes 4.625% 15feb2035, USD (B-2035)

0.85%

USA, Notes 4% 15feb2034, USD (B-2034)

0.80%

USA, Notes 4.125% 15feb2036, USD (B-2036)

0.79%

USA, Notes 4.5% 15nov2033, USD (F-2033)

0.79%

USA, Notes 4.25% 15aug2035, USD (E-2035)

0.77%

USA, Notes 4.375% 15may2034, USD (C-2034)

0.76%

USA, Notes 4.375% 15may2036, USD (C-2036)

0.75%

USA, Notes 3.5% 15feb2033, USD (B-2033)

0.75%

USA, Notes 4.25% 15nov2034, USD (F-2034)

0.74%

USA, Notes 3.875% 15aug2034, USD (E-2034)

0.72%

USA, Notes 3.875% 15aug2033, USD (E-2033)

0.72%

USA, Notes 4.25% 15may2035, USD (C-2035)

0.71%

USA, Notes 4% 15nov2035, USD (F-2035)

0.70%

USA, Notes 4% 28feb2030, USD (H-2030)

0.68%

USA, Notes 3.5% 31jan2028, USD (U-2028)

0.68%

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 SPTB and TLT

How have the SPTB and TLT ETFs performed in 2026?

As of August 28, 2026, SPTB is down -0.35% year-to-date (YTD), while TLT has lost -2.48%. That puts SPTB better performer ahead so far this year.

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

Year-to-date, the SPTB ETF saw +$234M in flows, compared to +$1.66B for TLT.

Which ETF is more volatile: SPTB or TLT?

Over the past year, SPTB had a volatility of 3.48%, while TLT experienced 9.39%.

Which ETF is bigger: SPTB or TLT?

As of August 28, 2026, SPTB holds $376.21 M in assets under management (AUM), while TLT manages $47.02 B.

What sectors do the SPTB and TLT ETFs invest in?

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

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

SPTB top holdings include USA, Notes 4.625% 15feb2035, USD (B-2035), USA, Notes 4% 15feb2034, USD (B-2034) and USA, Notes 4.125% 15feb2036, USD (B-2036). 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.

SPTBvsTLTETF Comparison

State Street SPDR Portfolio Treasury ETF

iShares 20+ Year Treasury Bond ETF

SPTB 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 SPTB and TLT ETFs performed in 2026?

As of August 28, 2026, SPTB is down -0.35% year-to-date (YTD), while TLT has lost -2.48%. That puts SPTB better performer ahead so far this year.

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

Year-to-date, the SPTB ETF saw +$234M in flows, compared to +$1.66B for TLT.

Which ETF is more volatile: SPTB or TLT?

Over the past year, SPTB had a volatility of 3.48%, while TLT experienced 9.39%.

Which ETF is bigger: SPTB or TLT?

As of August 28, 2026, SPTB holds $376.21 M in assets under management (AUM), while TLT manages $47.02 B.

What sectors do the SPTB and TLT ETFs invest in?

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

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

SPTB top holdings include USA, Notes 4.625% 15feb2035, USD (B-2035), USA, Notes 4% 15feb2034, USD (B-2034) and USA, Notes 4.125% 15feb2036, USD (B-2036). 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: SPTB or TLT?

SPTB holds 285 securities with 11.21% of its assets in the top 15. TLT has 47 securities and a top 15 weight of 59.52%.

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