ZROZvsSPTIETF Comparison

ETF 1

ZROZ

PIMCO 25+ Year Zero Coupon U.S. Treasury Index ETF

This fund is part of

US Government Bonds

-0.23%

Full ZROZ fund page

ETF 2

SPTI

State Street SPDR Portfolio Intermediate Term Treasury ETF

This fund is part of

US Government Bonds

-0.23%

Full SPTI fund page

PIMCO 25+ Year Zero Coupon U.S. Treasury Index ETF (ZROZ) and State Street SPDR Portfolio Intermediate Term Treasury ETF (SPTI) belong to the same industry segment: US Government Bonds. Both ETFs have the same top 1 sector exposures: Sovereign. ZROZ is more expensive with a Total Expense Ratio (TER) of 0.15%, versus 0.03% for SPTI. ZROZ is down -7.56% year-to-date (YTD) with +$363M in YTD flows. SPTI performs better with -1.52% YTD performance, and +$2.81B in YTD flows. Run a side-by-side ETF comparison of ZROZ and SPTI 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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ZROZ vs SPTI performance and flow charts

Performance

Cumulative Flows

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Data Services

Historic performance and flows

Data as of 10/28/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	ZROZ SPTI	+4.94%+1.40%	-5.05%-1.11%	-7.56%-1.52%	-15.24%-1.47%	-0.69%+13.35%	-54.20%-0.04%
Flows	ZROZ SPTI	+$15M+$1.53B	+$517M+$1.73B	+$363M+$2.81B	+$306M+$2.82B	+$1.05B+$7.98B	+$2.14B+$9.73B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	ZROZ SPTI	+19.90%+3.91%	+16.17%+3.52%	+20.74%+4.34%	+23.77%+5.38%
Max drawdown	ZROZ SPTI	-13.46%-2.94%	-22.75%-4.52%	-33.12%-4.52%	-61.27%-13.78%
Max drawdown duration	ZROZ SPTI	92d64d	365d241d	772d241d	1788d1397d

Trading data

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	ZROZ	SPTI
Last sale 10/29/2026 at 1:44 PM	$58.51	$27.68
Previous close 10/28/2026	$57.82	$27.58
Consolidated volume 10/28/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of September 30, 2026

1-year trailing difference

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	ZROZ	SPTI
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 10/29/2026 at 1:44 PM

Live

Closed

	ZROZ	SPTI
Last price	$58.51	$27.68
1D performance	+1.18%	+0.36%
AuM	$1.80 B	$11.98 B
E/R	0.15%	0.03%

Characteristics

	ZROZ	SPTI
Management strategy	Passive	Passive
Provider	PIMCO	State Street Investment Management
Benchmark	ICE BofA Long US Treasury Principal STRIPS Index	Bloomberg 3-10 Year U.S. Treasury Index
N° of holdings	21	100
Asset class	Bonds	Bonds
Trailing 12m distribution yield	Join	Join
Inception date	October 30, 2009	May 23, 2007
ESG	No	No

More ZROZ data on Trackinsight

More SPTI data on Trackinsight

Exposure

Countries

ZROZ

USA

95.56%

Other

4.44%

SPTI

USA

96.5%

Other

3.5%

Sectors

ZROZ

Sovereign

95.56%

Other

4.44%

SPTI

Sovereign

96.5%

Other

3.5%

Diversification

ZROZ

Total weight of top 15 holdings out of 15

78.28%

SPTI

Total weight of top 15 holdings out of 15

26.63%

Top 15 holdings

Data as of August 31, 2026

ZROZ

USA, STRIPS 0% 15feb2052, USD (10957D)

5.67%

USA, STRIPS 0% 15may2052, USD (10958D)

5.52%

USA, STRIPS 0% 15nov2051, USD (10957D)

5.42%

USA, STRIPS 0% 15aug2052, USD (10958D)

5.37%

USA, STRIPS 0% 15feb2053, USD (10958D)

5.35%

USA, STRIPS 0% 15nov2052, USD (10958D)

5.32%

USA, STRIPS 0% 15nov2053, USD (10958D)

5.32%

USA, STRIPS 0% 15aug2051, USD (10956D)

5.25%

USA, STRIPS 0% 15aug2053, USD (10958D)

5.23%

USA, STRIPS 0% 15may2053, USD (10958D)

5.23%

USA, STRIPS 0% 15feb2055, USD (10954D)

5.09%

USA, STRIPS 0% 15feb2056, USD (10955D)

4.99%

USA, STRIPS 0% 15nov2054, USD (10957D)

4.94%

USA, STRIPS 0% 15may2054, USD (10957D)

4.85%

USA, STRIPS 0% 15aug2055, USD (10957D)

4.73%

SPTI

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

1.95%

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

1.91%

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

1.90%

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

1.88%

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

1.86%

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

1.83%

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

1.81%

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

1.77%

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

1.75%

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

1.73%

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

1.69%

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

1.69%

USA, Notes 2.75% 15aug2032, USD (E-2032)

1.64%

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

1.60%

USA, Notes 4.125% 15nov2032, USD (F-2032)

1.60%

Frequently asked questions about ZROZ and SPTI

How have the ZROZ and SPTI ETFs performed in 2026?

As of October 28, 2026, ZROZ is down -7.56% year-to-date (YTD), while SPTI has lost -1.52%. That puts SPTI better performer ahead so far this year.

Which ETF is attracting more investor money: ZROZ or SPTI?

Year-to-date, the ZROZ ETF saw +$363M in flows, compared to +$2.81B for SPTI.

Which ETF is more volatile: ZROZ or SPTI?

Over the past year, ZROZ had a volatility of 16.17%, while SPTI experienced 3.52%.

Which ETF is bigger: ZROZ or SPTI?

As of October 28, 2026, ZROZ holds $1.80 B in assets under management (AUM), while SPTI manages $11.98 B.

What sectors do the ZROZ and SPTI ETFs invest in?

ZROZ leans toward sectors like Sovereign. Meanwhile, SPTI focuses on Sovereign.

What are the top holdings of the ZROZ ETF and SPTI ETF?

ZROZ top holdings include USA, STRIPS 0% 15feb2052, USD (10957D), USA, STRIPS 0% 15may2052, USD (10958D) and USA, STRIPS 0% 15nov2051, USD (10957D). SPTI holds in its top three: USA, Notes 4.625% 15feb2035, USD (B-2035), USA, Notes 4.25% 15aug2035, USD (E-2035) and USA, Notes 4.25% 15nov2034, USD (F-2034).

ZROZvsSPTIETF Comparison

PIMCO 25+ Year Zero Coupon U.S. Treasury Index ETF

State Street SPDR Portfolio Intermediate Term Treasury ETF

ZROZ vs SPTI 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 ZROZ and SPTI ETFs performed in 2026?

As of October 28, 2026, ZROZ is down -7.56% year-to-date (YTD), while SPTI has lost -1.52%. That puts SPTI better performer ahead so far this year.

Which ETF is attracting more investor money: ZROZ or SPTI?

Year-to-date, the ZROZ ETF saw +$363M in flows, compared to +$2.81B for SPTI.

Which ETF is more volatile: ZROZ or SPTI?

Over the past year, ZROZ had a volatility of 16.17%, while SPTI experienced 3.52%.

Which ETF is bigger: ZROZ or SPTI?

As of October 28, 2026, ZROZ holds $1.80 B in assets under management (AUM), while SPTI manages $11.98 B.

What sectors do the ZROZ and SPTI ETFs invest in?

ZROZ leans toward sectors like Sovereign. Meanwhile, SPTI focuses on Sovereign.

What are the top holdings of the ZROZ ETF and SPTI ETF?

Which ETF is more diversified: ZROZ or SPTI?

ZROZ holds 21 securities with 78.28% of its assets in the top 15. SPTI has 102 securities and a top 15 weight of 26.63%.

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