BCI vs. CMDY

Last updated Jun 4, 2026

BCI (abrdn Bloomberg All Commodity Strategy K-1 Free ETF) and CMDY (iShares Bloomberg Roll Select Commodity Strategy ETF) are both Commodities funds. BCI is actively managed, while CMDY is passively managed. Over the past 5 years, BCI returned 11.07%/yr vs 10.71%/yr for CMDY. Their correlation of 0.91 suggests significant overlap in exposure. BCI charges 0.25%/yr vs 0.28%/yr for CMDY.

Performance

BCI vs. CMDY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in abrdn Bloomberg All Commodity Strategy K-1 Free ETF (BCI) and iShares Bloomberg Roll Select Commodity Strategy ETF (CMDY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with BCI having a 26.68% return and CMDY slightly lower at 25.44%.

BCI

• 1D: -0.12%
• 1M: -3.06%
• YTD: 26.68%
• 6M: 25.55%
• 1Y: 38.68%
• 3Y*: 15.96%
• 5Y*: 11.07%
• 10Y*: —

CMDY

• 1D: 0.02%
• 1M: -2.52%
• YTD: 25.44%
• 6M: 24.53%
• 1Y: 37.10%
• 3Y*: 15.48%
• 5Y*: 10.71%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

BCI vs. CMDY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
BCI abrdn Bloomberg All Commodity Strategy K-1 Free ETF	26.68%	15.07%	5.47%	-8.79%	15.09%	26.18%	-2.77%	7.06%	-10.44%
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 BCI 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	0.97
Correlation (All Time) Calculated using the full available price history since Apr 6, 2018	0.91

The correlation between BCI and CMDY has been stable across timeframes, ranging from 0.91 to 0.98 - a consistent structural relationship.

BCI vs. CMDY - Sectors Allocation Comparison

Sectors	BCI	CMDY
Financial Services	100.0%	-
Basic Materials	-	-
Communication Services	-	100.0%
Consumer Cyclical	-	-
Consumer Defensive	-	-
Energy	-	-
Healthcare	-	-
Industrials	-	-
Real Estate	-	-
Technology	-	-
Utilities	-	-

Return for Risk

BCI vs. CMDY — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

BCI

BCI Risk / Return Rank: 71
BCI Sharpe Ratio Rank: 68
BCI Sortino Ratio Rank: 61
BCI Omega Ratio Rank: 67
BCI Calmar Ratio Rank: 87
BCI Martin Ratio Rank: 70

CMDY

CMDY Risk / Return Rank: 72
CMDY Sharpe Ratio Rank: 69
CMDY Sortino Ratio Rank: 61
CMDY Omega Ratio Rank: 69
CMDY Calmar Ratio Rank: 86
CMDY Martin Ratio Rank: 75

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

BCI vs. CMDY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for abrdn Bloomberg All Commodity Strategy K-1 Free ETF (BCI) 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.

	BCI	CMDY	Difference
Sharpe ratio Return per unit of total volatility	2.30	2.32	-0.02
Sortino ratio Return per unit of downside risk	2.92	2.93	-0.01
Omega ratio Gain probability vs. loss probability	1.41	1.42	-0.01
Calmar ratio Return relative to maximum drawdown	5.10	4.82	+0.28
Martin ratio Return relative to average drawdown	13.14	14.50	-1.36
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BCI vs. CMDY - Sharpe Ratio Comparison

The current BCI Sharpe Ratio is 2.30, which is comparable to the CMDY Sharpe Ratio of 2.32. The chart below compares the historical Sharpe Ratios of BCI and CMDY, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	BCI	CMDY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.30	2.32	-0.02
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.66	0.68	-0.02
Sharpe Ratio (All Time) Calculated using the full available price history	0.48	0.56	-0.08

Drawdowns

BCI vs. CMDY - Drawdown Comparison

The maximum BCI drawdown since its inception was -32.69%, roughly equal to the maximum CMDY drawdown of -31.19%. Use the drawdown chart below to compare losses from any high point for BCI and CMDY.

Drawdown Indicators

	BCI	CMDY	Difference
Max Drawdown Largest peak-to-trough decline	-32.69%	-31.19%	-1.50%
Max Drawdown (1Y) Largest decline over 1 year	-7.61%	-7.73%	+0.12%
Max Drawdown (3Y) Largest decline over 3 years	-11.38%	-10.08%	-1.30%
Max Drawdown (5Y) Largest decline over 5 years	-26.50%	-26.56%	+0.06%
Current Drawdown Current decline from peak	-4.52%	-3.97%	-0.55%
Average Drawdown Average peak-to-trough decline	-12.00%	-13.14%	+1.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.95%	2.57%	+0.38%

Volatility

BCI vs. CMDY - Volatility Comparison

abrdn Bloomberg All Commodity Strategy K-1 Free ETF (BCI) and iShares Bloomberg Roll Select Commodity Strategy ETF (CMDY) have volatilities of 5.16% 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.

Volatility by Period

	BCI	CMDY	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.16%	5.04%	+0.12%
Volatility (6M) Calculated over the trailing 6-month period	14.80%	14.20%	+0.60%
Volatility (1Y) Calculated over the trailing 1-year period	16.92%	16.06%	+0.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.82%	15.80%	+1.02%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.65%	14.63%	+1.02%

BCI vs. CMDY - Expense Ratio Comparison

BCI has a 0.25% expense ratio, which is lower than CMDY's 0.28% expense ratio.

Dividends

BCI vs. CMDY - Dividend Comparison

BCI's dividend yield for the trailing twelve months is around 13.01%, more than CMDY's 10.28% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
BCI abrdn Bloomberg All Commodity Strategy K-1 Free ETF	13.01%	16.49%	3.29%	3.93%	19.98%	19.43%	0.68%	1.47%	1.13%	5.02%
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%

Frequently Asked Questions

Can I hold both BCI and CMDY in my portfolio?

With a correlation of 0.98, BCI 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.

Which is riskier, BCI or CMDY?

BCI has higher volatility (5.16%) compared to CMDY (5.04%). In terms of maximum drawdown, BCI dropped -32.69% vs CMDY's -31.19%.

Which ETF is better, BCI or CMDY?

On 5-year performance, BCI leads with 11.07% vs 10.71% for CMDY. On fees, BCI 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.

Which ETF has performed better, BCI or CMDY?

Over the 5-year period, BCI has performed better with a 11.07% return vs 10.71%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BCI or CMDY?

BCI is cheaper with a 0.25% expense ratio, compared with 0.28% for CMDY.

Which ETF pays a higher dividend yield, BCI or CMDY?

BCI has the higher dividend yield at 13.01%, compared with 10.28% for CMDY.

What is the main difference between BCI and CMDY?

They also come from different issuers: Aberdeen and iShares. Their fees differ too: 0.25% for BCI and 0.28% for CMDY.

Which has better risk-adjusted returns?

CMDY currently has the higher Sharpe Ratio (2.32 vs 2.30), 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.