IBMO vs. DUSB
IBMO (iShares iBonds Dec 2026 Term Muni Bond ETF) and DUSB (Dimensional Ultrashort Fixed Income ETF) are both exchange-traded funds - IBMO is a Municipal Bonds fund tracking the S&P AMT-Free Municipal Series Callable-Adjusted Dec 2026 Index, while DUSB is a Ultrashort Bond fund actively managed by Dimensional. IBMO is passively managed, while DUSB is actively managed. Over the past year, IBMO returned 2.71% vs 4.31% for DUSB. At a correlation of -0.03, they often move in opposite directions. IBMO charges 0.18%/yr vs 0.15%/yr for DUSB.
Performance
IBMO vs. DUSB - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, IBMO achieves a 0.94% return, which is significantly lower than DUSB's 1.68% return.
IBMO
- 1D
- 0.01%
- 1M
- 0.26%
- YTD
- 0.94%
- 6M
- 1.23%
- 1Y
- 2.71%
- 3Y*
- 2.97%
- 5Y*
- 0.67%
- 10Y*
- —
DUSB
- 1D
- 0.02%
- 1M
- 0.34%
- YTD
- 1.68%
- 6M
- 1.97%
- 1Y
- 4.31%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IBMO vs. DUSB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
IBMO iShares iBonds Dec 2026 Term Muni Bond ETF | 0.94% | 3.11% | 1.97% | 3.47% |
DUSB Dimensional Ultrashort Fixed Income ETF | 1.68% | 4.53% | 5.60% | 1.79% |
Correlation
The correlation between IBMO and DUSB is -0.13, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.13 |
Correlation (All Time) Calculated using the full available price history since Sep 28, 2023 | -0.03 |
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
IBMO vs. DUSB — Risk / Return Rank
IBMO
DUSB
IBMO vs. DUSB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2026 Term Muni Bond ETF (IBMO) and Dimensional Ultrashort Fixed Income ETF (DUSB). 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.
| IBMO | DUSB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -7.63 | ||
| Sortino ratioReturn per unit of downside risk | -20.13 | ||
| Omega ratioGain probability vs. loss probability | 1.51 | 4.87 | -3.36 |
| Calmar ratioReturn relative to maximum drawdown | 7.20 | 55.00 | -47.80 |
| Martin ratioReturn relative to average drawdown | 21.39 | 332.80 | -311.41 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| IBMO | DUSB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.47 | 10.10 | -7.63 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.31 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.41 | 9.88 | -9.47 |
Drawdowns
IBMO vs. DUSB - Drawdown Comparison
The maximum IBMO drawdown since its inception was -14.77%, which is greater than DUSB's maximum drawdown of -0.29%. Use the drawdown chart below to compare losses from any high point for IBMO and DUSB.
Loading charts...
Drawdown Indicators
| IBMO | DUSB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -14.77% | -0.29% | -14.48% |
Max Drawdown (1Y)Largest decline over 1 year | -0.38% | -0.08% | -0.30% |
Max Drawdown (3Y)Largest decline over 3 years | -1.76% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -8.86% | — | — |
Current DrawdownCurrent decline from peak | 0.00% | -0.02% | +0.02% |
Average DrawdownAverage peak-to-trough decline | -2.32% | -0.01% | -2.31% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.13% | 0.01% | +0.12% |
Volatility
IBMO vs. DUSB - Volatility Comparison
iShares iBonds Dec 2026 Term Muni Bond ETF (IBMO) has a higher volatility of 0.21% compared to Dimensional Ultrashort Fixed Income ETF (DUSB) at 0.13%. This indicates that IBMO's price experiences larger fluctuations and is considered to be riskier than DUSB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| IBMO | DUSB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.21% | 0.13% | +0.08% |
Volatility (6M)Calculated over the trailing 6-month period | 0.84% | 0.30% | +0.54% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.11% | 0.43% | +0.68% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.15% | 0.52% | +1.63% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.52% | 0.52% | +4.00% |
IBMO vs. DUSB - Expense Ratio Comparison
IBMO has a 0.18% expense ratio, which is higher than DUSB's 0.15% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
IBMO vs. DUSB - Dividend Comparison
IBMO's dividend yield for the trailing twelve months is around 2.39%, less than DUSB's 4.06% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
DUSB Dimensional Ultrashort Fixed Income ETF | 4.06% | 4.32% | 4.92% | 1.23% | 0.00% | 0.00% | 0.00% | 0.00% |
IBMO iShares iBonds Dec 2026 Term Muni Bond ETF | 2.39% | 2.37% | 2.15% | 1.65% | 0.89% | 0.62% | 1.03% | 1.01% |
Frequently Asked Questions
IBMO and DUSB have a correlation of -0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IBMO has higher volatility (0.21%) compared to DUSB (0.13%). In terms of maximum drawdown, IBMO dropped -14.77% vs DUSB's -0.29%.
On 1-year performance, DUSB leads with 4.31% vs 2.71% for IBMO. On fees, DUSB is cheaper at 0.15% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, DUSB has performed better with a 4.31% return vs 2.71%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
DUSB is cheaper with a 0.15% expense ratio, compared with 0.18% for IBMO.
DUSB has the higher dividend yield at 4.06%, compared with 2.39% for IBMO.
IBMO is categorized as Municipal Bonds, while DUSB is Ultrashort Bond. They also come from different issuers: iShares and Dimensional. Their fees differ too: 0.18% for IBMO and 0.15% for DUSB.
DUSB currently has the higher Sharpe Ratio (10.10 vs 2.47), 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.
Find the right allocation for IBMO and DUSB
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer