ISTB vs. IBDU
Compare and contrast key facts about iShares Core 1-5 Year USD Bond ETF (ISTB) and iShares iBonds Dec 2029 Term Corporate ETF (IBDU).
ISTB and IBDU are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. ISTB is a passively managed fund by iShares that tracks the performance of the BBG US Universal 1-5 Year Index (USD). It was launched on Oct 18, 2012. IBDU is a passively managed fund by iShares that tracks the performance of the Bloomberg December 2029 Maturity Corporate Index. It was launched on Sep 17, 2019. Both ISTB and IBDU are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.
Performance
ISTB vs. IBDU - Performance Comparison
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ISTB vs. IBDU - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
ISTB iShares Core 1-5 Year USD Bond ETF | 0.10% | 6.36% | 4.37% | 5.56% | -6.08% | -0.71% | 4.75% | 1.00% |
IBDU iShares iBonds Dec 2029 Term Corporate ETF | 0.13% | 7.59% | 3.62% | 8.67% | -13.04% | -2.05% | 10.38% | 2.22% |
Returns By Period
In the year-to-date period, ISTB achieves a 0.10% return, which is significantly lower than IBDU's 0.13% return.
ISTB
- 1D
- 0.21%
- 1M
- -0.81%
- YTD
- 0.10%
- 6M
- 1.31%
- 1Y
- 4.49%
- 3Y*
- 4.77%
- 5Y*
- 1.87%
- 10Y*
- 2.31%
IBDU
- 1D
- 0.30%
- 1M
- -0.95%
- YTD
- 0.13%
- 6M
- 1.41%
- 1Y
- 5.36%
- 3Y*
- 5.31%
- 5Y*
- 1.51%
- 10Y*
- —
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ISTB vs. IBDU - Expense Ratio Comparison
ISTB has a 0.06% expense ratio, which is lower than IBDU's 0.10% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Return for Risk
ISTB vs. IBDU — Risk / Return Rank
ISTB
IBDU
ISTB vs. IBDU - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core 1-5 Year USD Bond ETF (ISTB) 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.
| ISTB | IBDU | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 2.32 | 1.73 | +0.59 |
Sortino ratioReturn per unit of downside risk | 3.56 | 2.46 | +1.10 |
Omega ratioGain probability vs. loss probability | 1.47 | 1.37 | +0.10 |
Calmar ratioReturn relative to maximum drawdown | 3.62 | 2.70 | +0.93 |
Martin ratioReturn relative to average drawdown | 14.54 | 11.85 | +2.69 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| ISTB | IBDU | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.32 | 1.73 | +0.59 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.68 | 0.26 | +0.42 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.93 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.84 | 0.32 | +0.51 |
Correlation
The correlation between ISTB and IBDU is 0.80, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
ISTB vs. IBDU - Dividend Comparison
ISTB's dividend yield for the trailing twelve months is around 4.18%, less than IBDU's 4.67% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ISTB iShares Core 1-5 Year USD Bond ETF | 4.18% | 4.12% | 3.83% | 2.97% | 2.01% | 1.69% | 2.20% | 2.75% | 2.57% | 2.06% | 1.90% | 1.58% |
IBDU iShares iBonds Dec 2029 Term Corporate ETF | 4.67% | 4.67% | 4.75% | 4.21% | 3.34% | 2.29% | 2.42% | 0.74% | 0.00% | 0.00% | 0.00% | 0.00% |
Drawdowns
ISTB vs. IBDU - Drawdown Comparison
The maximum ISTB drawdown since its inception was -9.34%, smaller than the maximum IBDU drawdown of -19.44%. Use the drawdown chart below to compare losses from any high point for ISTB and IBDU.
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Drawdown Indicators
| ISTB | IBDU | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -9.34% | -19.44% | +10.10% |
Max Drawdown (1Y)Largest decline over 1 year | -1.26% | -1.99% | +0.73% |
Max Drawdown (5Y)Largest decline over 5 years | -9.34% | -19.44% | +10.10% |
Max Drawdown (10Y)Largest decline over 10 years | -9.34% | — | — |
Current DrawdownCurrent decline from peak | -0.81% | -0.95% | +0.14% |
Average DrawdownAverage peak-to-trough decline | -1.23% | -5.54% | +4.31% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.31% | 0.45% | -0.14% |
Volatility
ISTB vs. IBDU - Volatility Comparison
The current volatility for iShares Core 1-5 Year USD Bond ETF (ISTB) is 0.78%, while iShares iBonds Dec 2029 Term Corporate ETF (IBDU) has a volatility of 0.98%. This indicates that ISTB 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
| ISTB | IBDU | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.78% | 0.98% | -0.20% |
Volatility (6M)Calculated over the trailing 6-month period | 1.18% | 1.53% | -0.35% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.94% | 3.11% | -1.17% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.78% | 5.77% | -2.99% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.50% | 7.41% | -4.91% |