IBDR vs. IBDU
IBDR (iShares iBonds Dec 2026 Term Corporate ETF) and IBDU (iShares iBonds Dec 2029 Term Corporate ETF) are both Corporate Bonds funds from iShares - IBDR tracks the Barclays December 2026 Maturity Corporate Index while IBDU tracks the Bloomberg December 2029 Maturity Corporate Index. Both are passively managed. Over the past 5 years, IBDR returned 1.57%/yr vs 1.11%/yr for IBDU. A 0.78 correlation means they provide meaningful diversification when combined. Both charge a 0.10% expense ratio.
Performance
IBDR vs. IBDU - Performance Comparison
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Returns By Period
In the year-to-date period, IBDR achieves a 1.65% return, which is significantly higher than IBDU's 0.54% return.
IBDR
- 1D
- 0.00%
- 1M
- 0.25%
- YTD
- 1.65%
- 6M
- 1.86%
- 1Y
- 4.30%
- 3Y*
- 5.16%
- 5Y*
- 1.57%
- 10Y*
- —
IBDU
- 1D
- -0.04%
- 1M
- 0.21%
- YTD
- 0.54%
- 6M
- 0.73%
- 1Y
- 4.36%
- 3Y*
- 5.80%
- 5Y*
- 1.11%
- 10Y*
- —
IBDR vs. IBDU - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
IBDR iShares iBonds Dec 2026 Term Corporate ETF | 1.65% | 4.99% | 4.98% | 5.96% | -8.28% | -1.79% | 8.88% | 2.23% |
IBDU iShares iBonds Dec 2029 Term Corporate ETF | 0.54% | 7.59% | 3.62% | 8.67% | -13.04% | -2.05% | 10.38% | 2.35% |
Correlation
The correlation between IBDR and IBDU is 0.18, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.18 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.71 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.78 |
Correlation (All Time) Calculated using the full available price history since Sep 19, 2019 | 0.78 |
Over the past year, the correlation between IBDR and IBDU has dropped to 0.18 - well below their long-term average of 0.78, suggesting their price drivers have been diverging.
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Return for Risk
IBDR vs. IBDU — Risk / Return Rank
IBDR
IBDU
IBDR vs. IBDU - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2026 Term Corporate ETF (IBDR) and iShares iBonds Dec 2029 Term Corporate ETF (IBDU). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| IBDR | IBDU | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +4.85 | ||
| Sortino ratioReturn per unit of downside risk | +11.23 | ||
| Omega ratioGain probability vs. loss probability | 3.36 | 1.38 | +1.98 |
| Calmar ratioReturn relative to maximum drawdown | 52.23 | 2.76 | +49.47 |
| Martin ratioReturn relative to average drawdown | 181.59 | 10.13 | +171.46 |
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Drawdowns
IBDR vs. IBDU - Drawdown Comparison
The maximum IBDR drawdown since its inception was -16.06%, smaller than the maximum IBDU drawdown of -19.44%. Use the drawdown chart below to compare losses from any high point for IBDR and IBDU.
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Drawdown Indicators
| IBDR | IBDU | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.06% | -19.44% | +3.38% |
Max Drawdown (1Y)Largest decline over 1 year | -0.08% | -1.59% | +1.51% |
Max Drawdown (3Y)Largest decline over 3 years | -1.08% | -4.14% | +3.06% |
Max Drawdown (5Y)Largest decline over 5 years | -13.13% | -19.44% | +6.31% |
Current DrawdownCurrent decline from peak | 0.00% | -0.54% | +0.54% |
Average DrawdownAverage peak-to-trough decline | -2.82% | -5.37% | +2.55% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.02% | 0.43% | -0.41% |
Volatility
IBDR vs. IBDU - Volatility Comparison
The current volatility for iShares iBonds Dec 2026 Term Corporate ETF (IBDR) is 0.18%, while iShares iBonds Dec 2029 Term Corporate ETF (IBDU) has a volatility of 0.65%. This indicates that IBDR experiences smaller price fluctuations and is considered to be less risky than IBDU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IBDR | IBDU | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.18% | 0.65% | -0.47% |
Volatility (6M)Calculated over the trailing 6-month period | 0.35% | 1.56% | -1.21% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.63% | 2.22% | -1.59% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.39% | 5.71% | -2.32% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.85% | 7.29% | -2.44% |
IBDR vs. IBDU - Expense Ratio Comparison
Both IBDR and IBDU have an expense ratio of 0.10%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
IBDR vs. IBDU - Dividend Comparison
IBDR's dividend yield for the trailing twelve months is around 4.13%, less than IBDU's 4.66% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
IBDR iShares iBonds Dec 2026 Term Corporate ETF | 4.13% | 4.20% | 4.13% | 3.41% | 2.44% | 2.11% | 2.61% | 3.25% | 3.56% | 3.22% | 0.86% |
IBDU iShares iBonds Dec 2029 Term Corporate ETF | 4.66% | 4.67% | 4.75% | 4.21% | 3.34% | 2.29% | 2.42% | 0.74% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
IBDR and IBDU have a correlation of 0.18, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IBDU has higher volatility (0.65%) compared to IBDR (0.18%). In terms of maximum drawdown, IBDR dropped -16.06% vs IBDU's -19.44%.
On 5-year performance, IBDR leads with 1.57% vs 1.11% for IBDU. Both ETFs have the same 0.10% expense ratio. On volatility, IBDR has been the lower-risk option at 0.18%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, IBDR has performed better with a 1.57% return vs 1.11%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IBDR and IBDU have the same expense ratio: 0.10% per year.
IBDU has the higher dividend yield at 4.66%, compared with 4.13% for IBDR.
IBDR tracks Barclays December 2026 Maturity Corporate Index, while IBDU tracks Bloomberg December 2029 Maturity Corporate Index.
IBDR currently has the higher Sharpe Ratio (6.83 vs 1.97), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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