SPTIvsZROZETF Comparison

ETF 1

SPTI

State Street SPDR Portfolio Intermediate Term Treasury ETF

This fund is part of

US Government Bonds

+0.32%

Full SPTI fund page

ETF 2

ZROZ

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

This fund is part of

US Government Bonds

+0.32%

Full ZROZ fund page

State Street SPDR Portfolio Intermediate Term Treasury ETF (SPTI) and PIMCO 25+ Year Zero Coupon U.S. Treasury Index ETF (ZROZ) belong to the same industry segment: US Government Bonds. Both ETFs have the same top 1 sector exposures: Sovereign. SPTI is less expensive with a Total Expense Ratio (TER) of 0.03%, versus 0.15% for ZROZ. SPTI is down -1.19% year-to-date (YTD) with +$2.85B in YTD flows. ZROZ performs worse with -6.87% YTD performance, and +$363M in YTD flows. Run a side-by-side ETF comparison of SPTI and ZROZ below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

Find out how industry players manage ETF portfolios. Discover our library of Model portfolios

SPTI vs ZROZ performance and flow charts

Performance

Cumulative Flows

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

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 10/29/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	SPTI ZROZ	+1.73%+6.82%	-0.60%-1.17%	-1.19%-6.87%	-0.66%-13.29%	+13.74%+0.05%	+0.31%-54.19%
Flows	SPTI ZROZ	+$1.57B-$140M	+$1.76B+$529M	+$2.85B+$363M	+$2.84B+$306M	+$8.01B+$1.05B	+$9.77B+$2.14B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	SPTI ZROZ	+3.96%+18.94%	+3.50%+16.13%	+4.34%+20.73%	+5.39%+23.77%
Max drawdown	SPTI ZROZ	-2.94%-11.73%	-4.52%-21.55%	-4.52%-33.12%	-13.78%-61.27%
Max drawdown duration	SPTI ZROZ	65d65d	242d365d	242d773d	1397d1789d

Trading data

Create an account to view trading data

Join for free

	SPTI	ZROZ
Last sale 10/30/2026 at 1:30 PM	$27.79	$58.41
Previous close 10/29/2026	$27.67	$58.32
Consolidated volume 10/29/2026
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

Create an account to view replication metrics

Join for free

Create an account to view replication quality

Join for free

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

Main metrics

Last update 10/30/2026 at 1:30 PM

Live

Closed

	SPTI	ZROZ
Last price	$27.79	$58.41
1D performance	+0.43%	+0.15%
AuM	$12.06 B	$1.82 B
E/R	0.03%	0.15%

Characteristics

	SPTI	ZROZ
Management strategy	Passive	Passive
Provider	State Street Investment Management	PIMCO
Benchmark	Bloomberg 3-10 Year U.S. Treasury Index	ICE BofA Long US Treasury Principal STRIPS Index
N° of holdings	98	21
Asset class	Bonds	Bonds
Trailing 12m distribution yield	Join	Join
Inception date	May 23, 2007	October 30, 2009
ESG	No	No

More SPTI data on Trackinsight

More ZROZ data on Trackinsight

Exposure

Countries

SPTI

USA

94.77%

Other

5.23%

ZROZ

USA

95.54%

Other

4.46%

Sectors

SPTI

Sovereign

94.77%

Other

5.23%

ZROZ

Sovereign

95.54%

Other

4.46%

Diversification

SPTI

Total weight of top 15 holdings out of 15

26.4%

ZROZ

Total weight of top 15 holdings out of 15

78.22%

Top 15 holdings

Data as of September 30, 2026

SPTI

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

1.92%

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

1.88%

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

1.88%

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

1.86%

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

1.84%

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

1.82%

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

1.80%

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

1.75%

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

1.74%

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

1.72%

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

1.71%

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

1.66%

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

1.64%

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

1.59%

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

1.59%

ZROZ

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

5.66%

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

5.51%

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

5.39%

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

5.36%

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

5.35%

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

5.31%

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

5.31%

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

5.23%

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

5.23%

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

5.22%

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

5.10%

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

5.01%

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

4.95%

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

4.85%

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

4.75%

Frequently asked questions about SPTI and ZROZ

How have the SPTI and ZROZ ETFs performed in 2026?

As of October 29, 2026, SPTI is down -1.19% year-to-date (YTD), while ZROZ has lost -6.87%. That puts SPTI better performer ahead so far this year.

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

Year-to-date, the SPTI ETF saw +$2.85B in flows, compared to +$363M for ZROZ.

Which ETF is more volatile: SPTI or ZROZ?

Over the past year, SPTI had a volatility of 3.5%, while ZROZ experienced 16.13%.

Which ETF is bigger: SPTI or ZROZ?

As of October 29, 2026, SPTI holds $12.06 B in assets under management (AUM), while ZROZ manages $1.82 B.

What sectors do the SPTI and ZROZ ETFs invest in?

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

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

SPTI top holdings include 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). ZROZ holds in its top three: USA, STRIPS 0% 15feb2052, USD (10957D), USA, STRIPS 0% 15may2052, USD (10958D) and USA, STRIPS 0% 15nov2051, USD (10957D).

SPTIvsZROZETF Comparison

State Street SPDR Portfolio Intermediate Term Treasury ETF

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

SPTI vs ZROZ 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 SPTI and ZROZ ETFs performed in 2026?

As of October 29, 2026, SPTI is down -1.19% year-to-date (YTD), while ZROZ has lost -6.87%. That puts SPTI better performer ahead so far this year.

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

Year-to-date, the SPTI ETF saw +$2.85B in flows, compared to +$363M for ZROZ.

Which ETF is more volatile: SPTI or ZROZ?

Over the past year, SPTI had a volatility of 3.5%, while ZROZ experienced 16.13%.

Which ETF is bigger: SPTI or ZROZ?

As of October 29, 2026, SPTI holds $12.06 B in assets under management (AUM), while ZROZ manages $1.82 B.

What sectors do the SPTI and ZROZ ETFs invest in?

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

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

Which ETF is more diversified: SPTI or ZROZ?

SPTI holds 102 securities with 26.4% of its assets in the top 15. ZROZ has 21 securities and a top 15 weight of 78.22%.

U.S. Yield Curve Normalization Signals Economic Resilience

Treasury Yields Drop: Long-Term Bond ETFs Surge

U.S. Treasury Yields Fall as Inflation Slows

Treasury Yields Soar to November High Amid Hot CPI

Long-Term Bond ETFs Fall as 10-Year Treasury Yield Rises

Long-Term Bond ETFs Fall as 10-Year Treasury Yield Rises

Respite as Long-Dated Treasury Yields Decline

Long-Dated Treasuries No Longer Considered a Safe Haven

ETFs’ Next Act: From Access to Selection