BCI vs. PDBC
BCI (abrdn Bloomberg All Commodity Strategy K-1 Free ETF) and PDBC (Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF) are both Commodities funds. BCI is passively managed, while PDBC is actively managed. Over the past 5 years, BCI returned 9.82%/yr vs 10.25%/yr for PDBC. Their correlation of 0.85 suggests significant overlap in exposure. BCI charges 0.26%/yr vs 0.58%/yr for PDBC.
Performance
BCI vs. PDBC - Performance Comparison
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Returns By Period
In the year-to-date period, BCI achieves a 16.69% return, which is significantly lower than PDBC's 23.47% return.
BCI
- 1D
- -0.65%
- 1M
- -8.66%
- YTD
- 16.69%
- 6M
- 16.52%
- 1Y
- 22.05%
- 3Y*
- 11.86%
- 5Y*
- 9.82%
- 10Y*
- —
PDBC
- 1D
- -0.85%
- 1M
- -10.11%
- YTD
- 23.47%
- 6M
- 23.29%
- 1Y
- 22.26%
- 3Y*
- 10.44%
- 5Y*
- 10.25%
- 10Y*
- 7.71%
BCI vs. PDBC - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BCI abrdn Bloomberg All Commodity Strategy K-1 Free ETF | 16.69% | 15.07% | 5.47% | -8.79% | 15.09% | 26.18% | -2.77% | 7.06% | -11.21% | 3.81% |
PDBC Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF | 23.47% | 5.96% | 2.09% | -6.25% | 19.23% | 41.72% | -7.84% | 11.44% | -12.78% | 9.69% |
Correlation
The correlation between BCI and PDBC is 0.91, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.91 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.89 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.88 |
Correlation (All Time) Calculated using the full available price history since Mar 31, 2017 | 0.85 |
The correlation between BCI and PDBC has been stable across timeframes, ranging from 0.85 to 0.91 - a consistent structural relationship.
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Return for Risk
BCI vs. PDBC — Risk / Return Rank
BCI
PDBC
BCI vs. PDBC - 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 Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| BCI | PDBC | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.10 | ||
| Sortino ratioReturn per unit of downside risk | +0.09 | ||
| Omega ratioGain probability vs. loss probability | 1.24 | 1.21 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | 1.84 | 1.66 | +0.18 |
| Martin ratioReturn relative to average drawdown | 6.82 | 7.01 | -0.19 |
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Drawdowns
BCI vs. PDBC - Drawdown Comparison
The maximum BCI drawdown since its inception was -32.69%, smaller than the maximum PDBC drawdown of -49.52%. Use the drawdown chart below to compare losses from any high point for BCI and PDBC.
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Drawdown Indicators
| BCI | PDBC | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -32.69% | -49.52% | +16.83% |
Max Drawdown (1Y)Largest decline over 1 year | -12.04% | -13.48% | +1.44% |
Max Drawdown (3Y)Largest decline over 3 years | -12.04% | -13.95% | +1.91% |
Max Drawdown (5Y)Largest decline over 5 years | -26.50% | -27.63% | +1.13% |
Max Drawdown (10Y)Largest decline over 10 years | — | -40.73% | — |
Current DrawdownCurrent decline from peak | -12.04% | -13.48% | +1.44% |
Average DrawdownAverage peak-to-trough decline | -11.98% | -23.15% | +11.17% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.56% | 4.04% | -0.48% |
Volatility
BCI vs. PDBC - Volatility Comparison
The current volatility for abrdn Bloomberg All Commodity Strategy K-1 Free ETF (BCI) is 3.49%, while Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC) has a volatility of 4.38%. This indicates that BCI experiences smaller price fluctuations and is considered to be less risky than PDBC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BCI | PDBC | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.49% | 4.38% | -0.89% |
Volatility (6M)Calculated over the trailing 6-month period | 14.94% | 16.17% | -1.23% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.18% | 18.73% | -1.55% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.79% | 19.15% | -2.36% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 15.65% | 17.78% | -2.13% |
BCI vs. PDBC - Expense Ratio Comparison
BCI has a 0.26% expense ratio, which is lower than PDBC's 0.58% expense ratio.
Dividends
BCI vs. PDBC - Dividend Comparison
BCI's dividend yield for the trailing twelve months is around 14.13%, more than PDBC's 3.11% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
BCI abrdn Bloomberg All Commodity Strategy K-1 Free ETF | 14.13% | 16.49% | 3.29% | 3.93% | 19.98% | 19.43% | 0.68% | 1.47% | 1.13% | 5.02% | 0.00% |
PDBC Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF | 3.11% | 3.84% | 4.42% | 4.21% | 13.05% | 50.83% | 0.01% | 1.40% | 1.00% | 3.83% | 6.51% |
Frequently Asked Questions
With a correlation of 0.91, BCI and PDBC 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.
PDBC has higher volatility (4.38%) compared to BCI (3.49%). In terms of maximum drawdown, BCI dropped -32.69% vs PDBC's -49.52%.
On 5-year performance, PDBC leads with 10.25% vs 9.82% for BCI. On fees, BCI is cheaper at 0.26% per year. On volatility, BCI has been the lower-risk option at 3.49%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, PDBC has performed better with a 10.25% return vs 9.82%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
BCI is cheaper with a 0.26% expense ratio, compared with 0.58% for PDBC.
BCI has the higher dividend yield at 14.13%, compared with 3.11% for PDBC.
They also come from different issuers: Aberdeen and Invesco. Their fees differ too: 0.26% for BCI and 0.58% for PDBC.
BCI currently has the higher Sharpe Ratio (1.29 vs 1.20), 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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