IBGCvsZROZETF Comparison
VS
ETF 2
ZROZ
PIMCO 25+ Year Zero Coupon U.S. Treasury Index ETF
This fund is part of
US Government Bonds
+0.07%
iShares iBonds Dec 2046 Term Treasury ETF (IBGC) and PIMCO 25+ Year Zero Coupon U.S. Treasury Index ETF (ZROZ) belong to the same industry segment: US Government Bonds. IBGC's top 2 sector exposures are Sovereign and Non-Corporate. In contrast, ZROZ's top sector exposures are Sovereign. IBGC is less expensive with a Total Expense Ratio (TER) of 0.07%, versus 0.15% for ZROZ. Run a side-by-side ETF comparison of IBGC 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.
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IBGC vs ZROZ performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IBGC ZROZ | -0.62%-2.19% | -3.62%-6.62% | n/a-9.49% | n/a-15.83% | n/a-7.17% | n/a-54.31% |
| Flows | IBGC ZROZ | +$13M+$340M | +$49M+$708M | -+$587M | -+$499M | -+$1.36B | -+$2.36B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IBGC ZROZ | +9.32%+18.45% | n/a+15.72% | n/a+20.95% | n/a+23.77% |
| Max drawdown | IBGC ZROZ | -6.81%-13.65% | n/a-22.82% | n/a-33.12% | n/a-61.27% |
| Max drawdown duration | IBGC ZROZ | 89d89d | n/a359d | n/a760d | n/a1776d |
Trading data
IBGC | ZROZ | |
Last sale 10/16/2026 at 1:30 PM | $23.34 | $56.63 |
| Previous close 10/15/2026 | $23.33 | $56.66 |
| Consolidated volume 10/15/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of October 18, 2026
1-year trailing difference
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IBGC | ZROZ | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/16/2026 at 1:30 PM
Live
Closed
IBGC | ZROZ | |
|---|---|---|
| Last price | $23.34 | $56.63 |
| 1D performance | +0.04% | -0.05% |
| AuM | $57.17 M | $1.98 B |
| E/R | 0.07% | 0.15% |
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Exposure
Countries
IBGC
USA
91.29%
Other
8.71%
ZROZ
USA
95.56%
Other
4.44%
Sectors
IBGC
Sovereign
90.05%
Other
9.95%
ZROZ
Sovereign
95.56%
Other
4.44%
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Diversification
IBGC
Total weight of top 8 holdings out of 8
100.85%
ZROZ
Total weight of top 15 holdings out of 15
78.28%
Top 15 holdings
Data as of August 31, 2026
IBGC
USA, Bonds 5% 15may2046, USD
26.44%
USA, Bonds 4.625% 15feb2046, USD
24.88%
USA, Bonds 2.25% 15aug2046, USD
12.86%
USA, Bonds 2.5% 15may2046, USD
10.27%
USA, Bonds 2.5% 15feb2046, USD
10.15%
US912810UX45
9.56%
USA, Bonds 2.875% 15nov2046, USD
5.46%
BlackRock Cash Funds - Treasury
1.24%
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%
Frequently asked questions about IBGC and ZROZ
Which ETF is bigger: IBGC or ZROZ?
As of October 16, 2026, IBGC holds $57.17 M in assets under management (AUM), while ZROZ manages $1.98 B.
What sectors do the IBGC and ZROZ ETFs invest in?
IBGC leans toward sectors like Sovereign. Meanwhile, ZROZ focuses on Sovereign.
What are the top holdings of the IBGC ETF and ZROZ ETF?
IBGC top holdings include USA, Bonds 5% 15may2046, USD, USA, Bonds 4.625% 15feb2046, USD and USA, Bonds 2.25% 15aug2046, USD. 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).
Which ETF is more diversified: IBGC or ZROZ?
IBGC has 8 securities. ZROZ has 21 securities and a top 15 weight of 78.28%.
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Latest news about IBGC & ZROZ
U.S. Yield Curve Normalization Signals Economic Resilience
December 16, 2024
ZROZ
Treasury Yields Drop: Long-Term Bond ETFs Surge
June 17, 2024
ZROZ
U.S. Treasury Yields Fall as Inflation Slows
May 20, 2024
ZROZ
Treasury Yields Soar to November High Amid Hot CPI
April 15, 2024
ZROZ
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Long-Term Bond ETFs Fall as 10-Year Treasury Yield Rises
February 12, 2024
ZROZ
Long-Term Bond ETFs Fall as 10-Year Treasury Yield Rises
February 12, 2024
ZROZ
Respite as Long-Dated Treasury Yields Decline
October 31, 2023
ZROZ
Long-Dated Treasuries No Longer Considered a Safe Haven
October 24, 2023
ZROZ
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