ZCBBvsIEFETF Comparison
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Global X Zero Coupon Bond 2031 ETF (ZCBB) and iShares 7-10 Year Treasury Bond ETF (IEF) belong to the same industry segment: US Government Bonds. In contrast, IEF's top sector exposures are Sovereign and Non-Corporate. ZCBB is less expensive with a Total Expense Ratio (TER) of 0.07%, versus 0.15% for IEF. ZCBB is down -2.43% year-to-date (YTD) with +$994K in YTD flows. IEF performs worse with -3.44% YTD performance, and -$977M in YTD flows. Run a side-by-side ETF comparison of ZCBB and IEF 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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ZCBB vs IEF performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/19/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | ZCBB IEF | -0.19%-0.82% | -1.85%-2.69% | -2.43%-3.44% | n/a-3.91% | n/a+13.31% | n/a-7.89% |
| Flows | ZCBB IEF | --$72M | --$4.16B | +$994K-$977M | -+$5.91B | -+$16.04B | -+$33.92B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | ZCBB IEF | +3.53%+5.29% | n/a+4.80% | n/a+6.15% | n/a+7.65% |
| Max drawdown | ZCBB IEF | -2.97%-4.27% | n/a-6.81% | n/a-6.88% | n/a-20.43% |
| Max drawdown duration | ZCBB IEF | 55d55d | n/a232d | n/a319d | n/a1779d |
Trading data
ZCBB | IEF | |
Last sale 10/19/2026 at 1:30 PM | $47.50 | $90.24 |
| Previous close 10/19/2026 | $47.61 | $90.08 |
| Consolidated volume 10/19/2026 | ||
| 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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ZCBB | IEF | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/19/2026 at 1:30 PM
Live
Closed
ZCBB | IEF | |
|---|---|---|
| Last price | $47.50 | $90.24 |
| 1D performance | -0.24% | +0.18% |
| AuM | $0.95 M | $41.53 B |
| E/R | 0.07% | 0.15% |
Characteristics
ZCBB | IEF | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | Global X | iShares |
| Benchmark | FTSE Zero Coupon U.S. Treasury STRIPS 2031 Maturity Index | ICE US Treasury 7-10 Year Bond Index |
| N° of holdings | 1 | 17 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | January 7, 2026 | July 22, 2002 |
| ESG | No | No |
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Exposure
Countries
ZCBB
Other
100%
IEF
USA
96.87%
Other
3.13%
Sectors
ZCBB
Other
100%
IEF
Sovereign
95.76%
Other
4.24%
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Diversification
ZCBB
Total weight of top 1 holdings out of 1
100%
IEF
Total weight of top 15 holdings out of 15
100.18%
Top 15 holdings
Data as of August 31, 2026
ZCBB
US37966B2088
100.00%
IEF
USA, Notes 4.125% 15feb2036, USD (B-2036)
9.32%
USA, Notes 4.375% 15may2036, USD (C-2036)
8.83%
USA, Notes 4.625% 15feb2035, USD (B-2035)
8.76%
USA, Notes 4.25% 15nov2034, USD (F-2034)
8.74%
USA, Notes 4% 15nov2035, USD (F-2035)
8.63%
USA, Notes 4.375% 15may2034, USD (C-2034)
8.42%
USA, Notes 4.25% 15may2035, USD (C-2035)
8.32%
USA, Notes 4.25% 15aug2035, USD (E-2035)
8.27%
USA, Notes 4% 15feb2034, USD (B-2034)
8.13%
USA, Notes 4.5% 15nov2033, USD (F-2033)
7.02%
USA, Notes 3.875% 15aug2034, USD (E-2034)
6.74%
US91282CRF04
3.83%
USA, Notes 3.875% 15aug2033, USD (E-2033)
3.30%
BlackRock Cash Funds - Treasury
1.11%
USA, Bonds 4.5% 15feb2036, USD
0.77%
Frequently asked questions about ZCBB and IEF
How have the ZCBB and IEF ETFs performed in 2026?
As of October 19, 2026, ZCBB is down -2.43% year-to-date (YTD), while IEF has lost -3.44%. That puts ZCBB better performer ahead so far this year.
Which ETF is attracting more investor money: ZCBB or IEF?
Year-to-date, the ZCBB ETF saw +$994K in flows, compared to -$977M for IEF.
Which ETF is bigger: ZCBB or IEF?
As of October 19, 2026, ZCBB holds $0.95 M in assets under management (AUM), while IEF manages $41.53 B.
What are the top holdings of the ZCBB ETF and IEF ETF?
ZCBB top holdings include US37966B2088. IEF holds in its top three: USA, Notes 4.125% 15feb2036, USD (B-2036), USA, Notes 4.375% 15may2036, USD (C-2036) and USA, Notes 4.625% 15feb2035, USD (B-2035).
Which ETF is more diversified: ZCBB or IEF?
ZCBB has 1 securities. IEF has 17 securities and a top 15 weight of 100.18%.
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