CMDY vs. BEMB
CMDY (iShares Bloomberg Roll Select Commodity Strategy ETF) and BEMB (Ishares J.P. Morgan Broad USD Emerging Markets Bond ETF) are both exchange-traded funds - CMDY is a Commodities fund tracking the Bloomberg Roll Select Commodity Total Return Index, while BEMB is a Emerging Markets Bonds fund actively managed by iShares. CMDY is passively managed, while BEMB is actively managed. Over the past 3 years, CMDY returned 15.11%/yr vs 8.77%/yr for BEMB. At a 0.02 correlation, their price movements are largely independent. CMDY charges 0.28%/yr vs 0.18%/yr for BEMB.
Performance
CMDY vs. BEMB - Performance Comparison
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Returns By Period
In the year-to-date period, CMDY achieves a 24.16% return, which is significantly higher than BEMB's 1.45% return.
CMDY
- 1D
- -1.01%
- 1M
- -3.07%
- YTD
- 24.16%
- 6M
- 23.07%
- 1Y
- 35.71%
- 3Y*
- 15.11%
- 5Y*
- 10.49%
- 10Y*
- —
BEMB
- 1D
- 0.18%
- 1M
- 0.78%
- YTD
- 1.45%
- 6M
- 1.90%
- 1Y
- 9.57%
- 3Y*
- 8.77%
- 5Y*
- —
- 10Y*
- —
CMDY vs. BEMB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
CMDY iShares Bloomberg Roll Select Commodity Strategy ETF | 24.16% | 15.81% | 5.43% | -3.79% |
BEMB Ishares J.P. Morgan Broad USD Emerging Markets Bond ETF | 1.45% | 12.27% | 5.51% | 8.88% |
Correlation
The correlation between CMDY and BEMB is -0.28, 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 | -0.28 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.01 |
Correlation (All Time) Calculated using the full available price history since Feb 27, 2023 | 0.02 |
The correlation between CMDY and BEMB shifts across timeframes, from -0.28 (1 year) to 0.02 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
CMDY vs. BEMB — Risk / Return Rank
CMDY
BEMB
CMDY vs. BEMB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Bloomberg Roll Select Commodity Strategy ETF (CMDY) and Ishares J.P. Morgan Broad USD Emerging Markets Bond ETF (BEMB). 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.
| CMDY | BEMB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.03 | ||
| Sortino ratioReturn per unit of downside risk | -0.48 | ||
| Omega ratioGain probability vs. loss probability | 1.40 | 1.44 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | 4.64 | 2.62 | +2.02 |
| Martin ratioReturn relative to average drawdown | 13.86 | 11.29 | +2.56 |
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
| CMDY | BEMB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.23 | 2.26 | -0.03 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.67 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.55 | 1.46 | -0.91 |
Drawdowns
CMDY vs. BEMB - Drawdown Comparison
The maximum CMDY drawdown since its inception was -31.19%, which is greater than BEMB's maximum drawdown of -6.17%. Use the drawdown chart below to compare losses from any high point for CMDY and BEMB.
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Drawdown Indicators
| CMDY | BEMB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -31.19% | -6.17% | -25.02% |
Max Drawdown (1Y)Largest decline over 1 year | -7.73% | -3.67% | -4.06% |
Max Drawdown (3Y)Largest decline over 3 years | -10.08% | -6.17% | -3.91% |
Max Drawdown (5Y)Largest decline over 5 years | -26.56% | — | — |
Current DrawdownCurrent decline from peak | -4.95% | -0.16% | -4.79% |
Average DrawdownAverage peak-to-trough decline | -13.14% | -0.94% | -12.20% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.58% | 0.85% | +1.73% |
Volatility
CMDY vs. BEMB - Volatility Comparison
iShares Bloomberg Roll Select Commodity Strategy ETF (CMDY) has a higher volatility of 5.11% compared to Ishares J.P. Morgan Broad USD Emerging Markets Bond ETF (BEMB) at 1.46%. This indicates that CMDY's price experiences larger fluctuations and is considered to be riskier than BEMB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CMDY | BEMB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.11% | 1.46% | +3.65% |
Volatility (6M)Calculated over the trailing 6-month period | 14.25% | 3.46% | +10.79% |
Volatility (1Y)Calculated over the trailing 1-year period | 16.10% | 4.26% | +11.84% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 15.80% | 5.88% | +9.92% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 14.63% | 5.88% | +8.75% |
CMDY vs. BEMB - Expense Ratio Comparison
CMDY has a 0.28% expense ratio, which is higher than BEMB's 0.18% expense ratio.
Dividends
CMDY vs. BEMB - Dividend Comparison
CMDY's dividend yield for the trailing twelve months is around 10.38%, more than BEMB's 6.87% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
|---|---|---|---|---|---|---|---|---|---|
BEMB Ishares J.P. Morgan Broad USD Emerging Markets Bond ETF | 6.87% | 6.88% | 6.31% | 5.46% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
CMDY iShares Bloomberg Roll Select Commodity Strategy ETF | 10.38% | 12.89% | 4.23% | 5.10% | 3.98% | 16.09% | 0.15% | 2.21% | 1.73% |
Frequently Asked Questions
CMDY and BEMB have a correlation of -0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CMDY has higher volatility (5.11%) compared to BEMB (1.46%). In terms of maximum drawdown, CMDY dropped -31.19% vs BEMB's -6.17%.
On 3-year performance, CMDY leads with 15.11% vs 8.77% for BEMB. On fees, BEMB is cheaper at 0.18% per year. On volatility, BEMB has been the lower-risk option at 1.46%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, CMDY has performed better with a 15.11% return vs 8.77%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
BEMB is cheaper with a 0.18% expense ratio, compared with 0.28% for CMDY.
CMDY has the higher dividend yield at 10.38%, compared with 6.87% for BEMB.
CMDY is categorized as Commodities, while BEMB is Emerging Markets Bonds. Their fees differ too: 0.28% for CMDY and 0.18% for BEMB.
BEMB currently has the higher Sharpe Ratio (2.26 vs 2.23), 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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