IBDZvsIBDUETF Comparison
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iShares iBonds Dec 2034 Term Corporate ETF (IBDZ) and iShares iBonds Dec 2029 Term Corporate ETF (IBDU) belong to the same industry segment: US Corporate IG Bonds. IBDZ's top 3 sector exposures are Finance, Utilities and Energy. In contrast, IBDU's top sector exposures are Finance, Technology and Utilities. Both IBDZ and IBDU have the same Total Expense Ratio (TER) of 0.1%. IBDZ is down -2.17% year-to-date (YTD) with +$306M in YTD flows. IBDU performs better with 0.64% YTD performance, and +$694M in YTD flows. Run a side-by-side ETF comparison of IBDZ and IBDU 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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IBDZ vs IBDU performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IBDZ IBDU | -0.34%+0.30% | -2.38%-0.33% | -2.17%+0.64% | -2.07%+1.18% | n/a+20.55% | n/a+5.95% |
| Flows | IBDZ IBDU | +$34M+$53M | +$32M+$37M | +$306M+$694M | +$444M+$1.08B | -+$3.30B | -+$3.92B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IBDZ IBDU | +4.75%+1.95% | +4.37%+2.01% | n/a+3.49% | n/a+5.25% |
| Max drawdown | IBDZ IBDU | -3.78%-1.46% | -5.08%-1.54% | n/a-2.48% | n/a-18.17% |
| Max drawdown duration | IBDZ IBDU | 89d52d | 229d155d | n/a154d | n/a1267d |
Trading data
IBDZ | IBDU | |
Last sale 10/16/2026 at 1:30 PM | $24.86 | $22.74 |
| Previous close 10/15/2026 | $24.88 | $22.74 |
| 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 September 30, 2026
1-year trailing difference
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IBDZ | IBDU | |
|---|---|---|
| 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
IBDZ | IBDU | |
|---|---|---|
| Last price | $24.86 | $22.74 |
| 1D performance | -0.10% | +0.00% |
| AuM | $875.96 M | $3.99 B |
| E/R | 0.1% | 0.1% |
Characteristics
IBDZ | IBDU | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | iShares |
| Benchmark | Bloomberg December 2034 Maturity Corporate Index | Bloomberg December 2029 Maturity Corporate Index |
| N° of holdings | 375 | 679 |
| Asset class | - | Fixed Income |
| Trailing 12m distribution yield | Join | Join |
| Inception date | May 22, 2024 | September 17, 2019 |
| ESG | No | No |
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Exposure
Countries
IBDZ
USA
88.85%
Other
11.15%
IBDU
USA
86.15%
Other
13.85%
Sectors
IBDZ
Finance
24.91%
Utilities
13.19%
Energy
11.1%
Technology
10.33%
Healthcare
8.64%
Consumer Non-Cycl.
7.02%
Other
24.83%
IBDU
Finance
29.37%
Technology
11.74%
Utilities
8.99%
Healthcare
8.79%
Industrials
7.22%
Other
33.89%
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Diversification
IBDZ
Total weight of top 15 holdings out of 15
11.42%
IBDU
Total weight of top 15 holdings out of 15
8.95%
Top 15 holdings
Data as of August 31, 2026
IBDZ
AbbVie, 5.05% 15mar2034, USD
1.02%
Broadcom Inc, 3.469% 15apr2034, USD
0.92%
AT&T Inc, 5.4% 15feb2034, USD
0.90%
Boeing, 6.528% 1may2034, USD
0.88%
Cisco Systems, 5.05% 26feb2034, USD
0.84%
Bristol Myers Squibb, 5.2% 22feb2034, USD
0.82%
Meta Platforms, 4.75% 15aug2034, USD
0.81%
Kroger, 5% 15sep2034, USD
0.76%
Citibank N.A., 5.57% 30apr2034, USD
0.70%
BP Capital Markets America, 5.227% 17nov2034, USD
0.67%
Hewlett Packard Enterprise, 5% 15oct2034, USD
0.65%
UnitedHealth Group, 5.15% 15jul2034, USD
0.65%
Aon North America, 5.45% 1mar2034, USD
0.61%
Verizon Communications, 4.4% 1nov2034, USD
0.61%
Broadcom Inc, 4.8% 15oct2034, USD
0.60%
IBDU
AbbVie, 3.2% 21nov2029, USD
0.97%
Salesforce, 4.65% 15mar2029, USD
0.77%
Verizon Communications, 4.016% 3dec2029, USD
0.64%
Amazon.com, 4% 13mar2029, USD
0.60%
AT&T Inc, 4.35% 1mar2029, USD
0.60%
IBM, 3.5% 15may2029, USD
0.60%
NVIDIA, 4.35% 15jun2029, USD
0.59%
Fiserv, 3.5% 1jul2029, USD
0.58%
Anheuser-Busch InBev, 4.75% 23jan2029, USD
0.57%
Oracle, 4.55% 4feb2029, USD
0.57%
Amazon.com, 4.6% 9jul2029, USD
0.51%
Sumitomo Mitsui FG, 3.04% 16jul2029, USD
0.50%
Cisco Systems, 4.85% 26feb2029, USD
0.50%
AbbVie, 4.8% 15mar2029, USD
0.49%
Wells Fargo, 4.15% 24jan2029, USD (Q)
0.48%
Frequently asked questions about IBDZ and IBDU
How have the IBDZ and IBDU ETFs performed in 2026?
As of October 16, 2026, IBDZ is down -2.17% year-to-date (YTD), while IBDU has returned 0.64%. That puts IBDU better performer ahead so far this year.
Which ETF is attracting more investor money: IBDZ or IBDU?
Year-to-date, the IBDZ ETF saw +$306M in flows, compared to +$694M for IBDU.
Which ETF is more volatile: IBDZ or IBDU?
Over the past year, IBDZ had a volatility of 4.37%, while IBDU experienced 2.01%.
Which ETF is bigger: IBDZ or IBDU?
As of October 16, 2026, IBDZ holds $875.96 M in assets under management (AUM), while IBDU manages $3.99 B.
What sectors do the IBDZ and IBDU ETFs invest in?
IBDZ leans toward sectors like Finance, Utilities and Energy. Meanwhile, IBDU focuses on Finance, Technology and Utilities.
What are the top holdings of the IBDZ ETF and IBDU ETF?
IBDZ top holdings include AbbVie, 5.05% 15mar2034, USD, Broadcom Inc, 3.469% 15apr2034, USD and AT&T Inc, 5.4% 15feb2034, USD. IBDU holds in its top three: AbbVie, 3.2% 21nov2029, USD, Salesforce, 4.65% 15mar2029, USD and Verizon Communications, 4.016% 3dec2029, USD.
Which ETF is more diversified: IBDZ or IBDU?
IBDZ holds 379 securities with 11.42% of its assets in the top 15. IBDU has 698 securities and a top 15 weight of 8.95%.
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