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ZROZvsTLTETF Comparison

ETF 1
ZROZ

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

This fund is part of
US Government Bonds
-0.11%
VS
ETF 2
TLT

iShares 20+ Year Treasury Bond ETF

This fund is part of
US Government Bonds
-0.11%

PIMCO 25+ Year Zero Coupon U.S. Treasury Index ETF (ZROZ) and iShares 20+ Year Treasury Bond ETF (TLT) belong to the same industry segment: US Government Bonds. Both ETFs have the same top 3 sector exposures: and Sovereign. Both ZROZ and TLT have the same Total Expense Ratio (TER) of 0.15%. ZROZ is up 0.86% year-to-date (YTD) with -$164M in YTD flows. TLT performs worse with 0.46% YTD performance, and -$5.18B in YTD flows. Run a side-by-side ETF comparison of ZROZ 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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ZROZ vs TLT performance and flow charts

Performance

-4.0-3.0-2.0-1.00.01.02.0%Mar 6Mar 13Mar 20Mar 27Apr 6

Cumulative Flows

-2 B-1.5 B-1 B-0.5 B0 B0.5 BMar 6Mar 13Mar 20Mar 27Apr 6

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

Historic performance and flows
Data as of 04/06/2026
1M3MYTD1Y3Y5Y
Perf.
ZROZ
TLT
-2.26%-1.63%
+0.88%+0.37%
+0.86%+0.46%
-4.23%+0.60%
-25.58%-9.71%
-43.75%-25.93%
Flows
ZROZ
TLT
-$32M-$1.83B
-$164M-$4.41B
-$164M-$5.18B
-$57M-$6.52B
+$942M+$16.29B
+$1.68B+$41.56B
Volatility and drawdown
3M1Y3Y5Y
Volatility
ZROZ
TLT
+17.29%+10.48%
+18.37%+10.86%
+22.60%+14.10%
+23.88%+15.62%
Max drawdown
ZROZ
TLT
-7.47%-5.33%
-11.49%-6.58%
-32.56%-22.35%
-57.98%-43.68%
Max drawdown duration
ZROZ
TLT
36d36d
185d128d
1093d1093d
1583d1583d
Trading data

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ZROZ
TLT
Last sale
4/7/2026 at 1:30 PM
$63.65
$86.64
Previous close
04/06/2026
$63.90
$86.65
Consolidated volume
04/06/2026
Average volume
30 days
Average discount or premium
30 days
Average Bid/Ask spread
30 days
Replication quality
Data as of April 7, 2026
1-year trailing difference

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ZROZ
TLT
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst
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Main metrics
Last update 4/7/2026 at 1:30 PM
Live
Closed
ZROZ
TLT
Last price
$63.65
$86.64
1D performance
-0.39%
-0.01%
AuM$1.39 B$41.99 B
E/R0.15%0.15%
Characteristics
ZROZ
TLT
Management strategyPassivePassive
ProviderPIMCOiShares
BenchmarkICE BofA Long US Treasury Principal STRIPS IndexICE U.S. Treasury 20+ Year Bond Index
N° of holdings1842
Asset classBondsFixed Income
Trailing 12m distribution yield
Join
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Inception dateOctober 30, 2009July 22, 2002
ESGNoNo
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Exposure

Countries

ZROZ
USA
100%
Other
-0%
TLT
USA
100.01%
Other
-0.01%

Sectors

ZROZ
Sovereign
86.83%
Other
13.17%
TLT
Sovereign
90.09%
Other
9.91%
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Diversification

ZROZ

Total weight of top 15 holdings out of 15

80.11%
TLT

Total weight of top 15 holdings out of 15

60.39%

Top 15 holdings

Data as of February 28, 2026
ZROZ
USA, STRIPS 0% 15feb2053, USD (10958D)
5.89%
USA, STRIPS 0% 15aug2052, USD (10958D)
5.89%
USA, STRIPS 0% 15nov2052, USD (10958D)
5.81%
USA, STRIPS 0% 15feb2051, USD (10956D)
5.78%
USA, STRIPS 0% 15feb2052, USD (10957D)
5.49%
USA, STRIPS 0% 15feb2055, USD (10954D)
5.39%
USA, STRIPS 0% 15may2051, USD (10955D)
5.36%
USA, STRIPS 0% 15may2052, USD (10958D)
5.34%
USA, STRIPS 0% 15nov2051, USD (10957D)
5.23%
USA, STRIPS 0% 15nov2053, USD (10958D)
5.20%
USA, STRIPS 0% 15aug2053, USD (10958D)
5.10%
USA, STRIPS 0% 15may2053, USD (10958D)
5.08%
USA, STRIPS 0% 15aug2051, USD (10956D)
5.07%
USA, STRIPS 0% 15nov2054, USD (10957D)
4.83%
US912803HN68
4.64%
TLT
USA, Bonds 2% 15aug2051, USD
4.84%
USA, Bonds 1.875% 15nov2051, USD
4.79%
USA, Bonds 4.125% 15aug2053, USD
4.58%
USA, Bonds 4.75% 15nov2053, USD
4.56%
US912810UK24
4.52%
USA, Bonds 4.625% 15may2054, USD
4.46%
USA, Bonds 4.25% 15aug2054, USD
4.26%
USA, Bonds 4.25% 15feb2054, USD
4.04%
USA, Bonds 3.625% 15may2053, USD
3.91%
USA, Bonds 4.625% 15feb2055, USD
3.81%
USA, Bonds 1.875% 15feb2051, USD
3.70%
USA, Bonds 4% 15nov2052, USD
3.67%
USA, Bonds 4.5% 15nov2054, USD
3.50%
US912810UM89
2.90%
USA, Bonds 3.375% 15nov2048, USD
2.84%
Frequently asked questions about ZROZ and TLT

How have the ZROZ and TLT ETFs performed in 2026?

As of April 6, 2026, ZROZ is up 0.86% year-to-date (YTD), while TLT has returned 0.46%. That puts ZROZ better performer ahead so far this year.

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

Year-to-date, the ZROZ ETF saw -$164M in flows, compared to -$5.18B for TLT.

Which ETF is more volatile: ZROZ or TLT?

Over the past year, ZROZ had a volatility of 18.37%, while TLT experienced 10.86%.

Which ETF is bigger: ZROZ or TLT?

As of April 6, 2026, ZROZ holds $1.39 B in assets under management (AUM), while TLT manages $41.99 B.

What sectors do the ZROZ and TLT ETFs invest in?

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

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

ZROZ top holdings include USA, STRIPS 0% 15feb2053, USD (10958D), USA, STRIPS 0% 15aug2052, USD (10958D) and USA, STRIPS 0% 15nov2052, USD (10958D). TLT holds in its top three: USA, Bonds 2% 15aug2051, USD, USA, Bonds 1.875% 15nov2051, USD and USA, Bonds 4.125% 15aug2053, USD.

Which ETF is more diversified: ZROZ or TLT?

ZROZ holds 20 securities with 80.11% of its assets in the top 15. TLT has 46 securities and a top 15 weight of 60.39%.

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