COMB vs. CMDY
COMB (GraniteShares Bloomberg Commodity Broad Strategy No K-1 ETF) and CMDY (iShares Bloomberg Roll Select Commodity Strategy ETF) are both Commodities funds. COMB is actively managed, while CMDY is passively managed. Over the past 5 years, COMB returned 11.27%/yr vs 10.71%/yr for CMDY. Their correlation of 0.92 suggests significant overlap in exposure. COMB charges 0.25%/yr vs 0.28%/yr for CMDY.
Performance
COMB vs. CMDY - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, COMB achieves a 26.81% return, which is significantly higher than CMDY's 25.44% return.
COMB
- 1D
- 0.03%
- 1M
- -2.98%
- YTD
- 26.81%
- 6M
- 25.89%
- 1Y
- 38.86%
- 3Y*
- 16.31%
- 5Y*
- 11.27%
- 10Y*
- —
CMDY
- 1D
- 0.02%
- 1M
- -2.52%
- YTD
- 25.44%
- 6M
- 24.53%
- 1Y
- 37.10%
- 3Y*
- 15.48%
- 5Y*
- 10.71%
- 10Y*
- —
COMB vs. CMDY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
COMB GraniteShares Bloomberg Commodity Broad Strategy No K-1 ETF | 26.81% | 15.12% | 5.24% | -7.75% | 14.56% | 26.34% | -2.95% | 7.02% | -10.69% |
CMDY iShares Bloomberg Roll Select Commodity Strategy ETF | 25.44% | 15.81% | 5.43% | -9.33% | 14.55% | 26.38% | 1.15% | 4.96% | -11.11% |
Correlation
The correlation between COMB and CMDY is 0.98 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.98 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.98 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.96 |
Correlation (All Time) Calculated using the full available price history since Apr 6, 2018 | 0.92 |
The correlation between COMB and CMDY has been stable across timeframes, ranging from 0.92 to 0.98 - a consistent structural relationship.
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
COMB vs. CMDY — Risk / Return Rank
COMB
CMDY
COMB vs. CMDY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for GraniteShares Bloomberg Commodity Broad Strategy No K-1 ETF (COMB) and iShares Bloomberg Roll Select Commodity Strategy ETF (CMDY). 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.
| COMB | CMDY | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.03 | ||
| Sortino ratioReturn per unit of downside risk | -0.02 | ||
| Omega ratioGain probability vs. loss probability | 1.41 | 1.42 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 5.08 | 4.82 | +0.26 |
| Martin ratioReturn relative to average drawdown | 13.24 | 14.50 | -1.26 |
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
| COMB | CMDY | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.29 | 2.32 | -0.03 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.68 | 0.68 | 0.00 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.52 | 0.56 | -0.04 |
Drawdowns
COMB vs. CMDY - Drawdown Comparison
The maximum COMB drawdown since its inception was -33.50%, which is greater than CMDY's maximum drawdown of -31.19%. Use the drawdown chart below to compare losses from any high point for COMB and CMDY.
Loading charts...
Drawdown Indicators
| COMB | CMDY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.50% | -31.19% | -2.31% |
Max Drawdown (1Y)Largest decline over 1 year | -7.69% | -7.73% | +0.04% |
Max Drawdown (3Y)Largest decline over 3 years | -11.35% | -10.08% | -1.27% |
Max Drawdown (5Y)Largest decline over 5 years | -26.63% | -26.56% | -0.07% |
Current DrawdownCurrent decline from peak | -4.35% | -3.97% | -0.38% |
Average DrawdownAverage peak-to-trough decline | -12.06% | -13.14% | +1.08% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.94% | 2.57% | +0.37% |
Volatility
COMB vs. CMDY - Volatility Comparison
GraniteShares Bloomberg Commodity Broad Strategy No K-1 ETF (COMB) and iShares Bloomberg Roll Select Commodity Strategy ETF (CMDY) have volatilities of 5.14% and 5.04%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| COMB | CMDY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.14% | 5.04% | +0.10% |
Volatility (6M)Calculated over the trailing 6-month period | 14.99% | 14.20% | +0.79% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.02% | 16.06% | +0.96% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.70% | 15.80% | +0.90% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 15.13% | 14.63% | +0.50% |
COMB vs. CMDY - Expense Ratio Comparison
COMB has a 0.25% expense ratio, which is lower than CMDY's 0.28% expense ratio.
Dividends
COMB vs. CMDY - Dividend Comparison
COMB's dividend yield for the trailing twelve months is around 7.14%, less than CMDY's 10.28% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
CMDY iShares Bloomberg Roll Select Commodity Strategy ETF | 10.28% | 12.89% | 4.23% | 5.10% | 3.98% | 16.09% | 0.15% | 2.21% | 1.73% | 0.00% |
COMB GraniteShares Bloomberg Commodity Broad Strategy No K-1 ETF | 7.14% | 9.05% | 2.48% | 6.57% | 30.85% | 15.83% | 0.07% | 1.48% | 0.97% | 0.20% |
Frequently Asked Questions
With a correlation of 0.98, COMB and CMDY move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
COMB has higher volatility (5.14%) compared to CMDY (5.04%). In terms of maximum drawdown, COMB dropped -33.50% vs CMDY's -31.19%.
On 5-year performance, COMB leads with 11.27% vs 10.71% for CMDY. On fees, COMB is cheaper at 0.25% per year. On volatility, CMDY has been the lower-risk option at 5.04%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, COMB has performed better with a 11.27% return vs 10.71%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
COMB is cheaper with a 0.25% expense ratio, compared with 0.28% for CMDY.
CMDY has the higher dividend yield at 10.28%, compared with 7.14% for COMB.
They also come from different issuers: GraniteShares and iShares. Their fees differ too: 0.25% for COMB and 0.28% for CMDY.
CMDY currently has the higher Sharpe Ratio (2.32 vs 2.29), 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 COMB and CMDY
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