PDBC vs. USCI
PDBC (Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF) and USCI (United States Commodity Index Fund) are both Commodities funds. PDBC is actively managed, while USCI is passively managed. Over the past 10 years, PDBC returned 8.61%/yr vs 8.89%/yr for USCI. Their 0.78 correlation means they have sometimes moved together and sometimes differently. PDBC charges 0.58%/yr vs 1.03%/yr for USCI.
Performance
PDBC vs. USCI - Performance Comparison
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Returns By Period
The year-to-date returns for both stocks are quite close, with PDBC having a 28.15% return and USCI slightly lower at 27.54%. Both investments have delivered pretty close results over the past 10 years, with PDBC having a 8.61% annualized return and USCI not far ahead at 8.89%.
PDBC
- 1D
- 0.47%
- 1M
- 5.47%
- 6M
- 18.25%
- YTD
- 28.15%
- 1Y
- 35.58%
- 3Y*
- 9.41%
- 5Y*
- 11.02%
- 10Y*
- 8.61%
- ALL TIME*
- 3.59%
USCI
- 1D
- 0.54%
- 1M
- 4.28%
- 6M
- 19.98%
- YTD
- 27.54%
- 1Y
- 35.13%
- 3Y*
- 19.29%
- 5Y*
- 19.82%
- 10Y*
- 8.89%
- ALL TIME*
- 4.36%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $121.86M | $152.61M | $122.20M | |
| $1.34M | $1.23M | $1.80M |
PDBC vs. USCI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PDBC Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF | 28.15% | 5.96% | 2.09% | -6.25% | 19.23% | 41.72% | -7.84% | 11.44% | -12.78% | 5.06% |
USCI United States Commodity Index Fund | 27.54% | 17.63% | 17.24% | 0.00% | 29.47% | 33.07% | -11.47% | -1.68% | -11.76% | 6.32% |
Correlation
The correlation between PDBC and USCI is 0.90, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.90 |
Correlation (3Y) Balances recent behavior with more history. | 0.86 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.87 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.81 |
Correlation (All Time) Calculated using the full available price history since Nov 7, 2014 | 0.78 |
The correlation between PDBC and USCI shifts across timeframes, from 0.78 (all time) to 0.90 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
PDBC vs. USCI — Risk / Return Rank
PDBC
USCI
PDBC vs. USCI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC) and United States Commodity Index Fund (USCI). 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.
| PDBC | USCI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.24 | ||
| Sortino ratioReturn per unit of downside risk | -0.32 | ||
| Omega ratioGain probability vs. loss probability | 1.31 | 1.35 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | 2.16 | 3.15 | -0.99 |
| Martin ratioReturn relative to average drawdown | 7.07 | 10.02 | -2.95 |
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Drawdowns
PDBC vs. USCI - Drawdown Comparison
The maximum PDBC drawdown since its inception was -49.52%, smaller than the maximum USCI drawdown of -66.41%. Use the drawdown chart below to compare losses from any high point for PDBC and USCI.
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Drawdown Indicators
| PDBC | USCI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -49.52% | -66.41% | +16.89% |
Max Drawdown (1Y)Largest decline over 1 year | -16.55% | -11.19% | -5.36% |
Max Drawdown (3Y)Largest decline over 3 years | -16.55% | -12.01% | -4.54% |
Max Drawdown (5Y)Largest decline over 5 years | -27.63% | -18.84% | -8.79% |
Max Drawdown (10Y)Largest decline over 10 years | -40.73% | -45.82% | +5.09% |
Current DrawdownCurrent decline from peak | -10.21% | -3.83% | -6.38% |
Average DrawdownAverage peak-to-trough decline | -23.02% | -29.25% | +6.23% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.05% | 3.52% | +1.53% |
Volatility
PDBC vs. USCI - Volatility Comparison
Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC) has a higher volatility of 7.58% compared to United States Commodity Index Fund (USCI) at 5.09%. This indicates that PDBC's price experiences larger fluctuations and is considered to be riskier than USCI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PDBC | USCI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.58% | 5.09% | +2.49% |
Volatility (6M)Calculated over the trailing 6-month period | 16.65% | 12.84% | +3.81% |
Volatility (1Y)Calculated over the trailing 1-year period | 19.73% | 17.18% | +2.55% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 19.28% | 18.45% | +0.83% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.85% | 15.93% | +1.92% |
PDBC vs. USCI - Expense Ratio Comparison
PDBC has a 0.58% expense ratio, which is lower than USCI's 1.03% expense ratio.
Dividends
PDBC vs. USCI - Dividend Comparison
PDBC's dividend yield for the trailing twelve months is around 3.00%, while USCI has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
PDBC Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF | 3.00% | 3.84% | 4.42% | 4.21% | 13.05% | 50.83% | 0.01% | 1.40% | 1.00% | 3.83% | 6.51% |
USCI United States Commodity Index Fund | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
With a correlation of 0.90, PDBC and USCI 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 (7.58%) compared to USCI (5.09%). In terms of maximum drawdown, PDBC dropped -49.52% vs USCI's -66.41%.
On 10-year performance, USCI leads with 8.89% vs 8.61% for PDBC. On fees, PDBC is cheaper at 0.58% per year. On volatility, USCI has been the lower-risk option at 5.09%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, USCI has performed better with a 8.89% return vs 8.61%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
PDBC is cheaper with a 0.58% expense ratio, compared with 1.03% for USCI.
PDBC has the higher dividend yield at 3.00%, compared with 0.00% for USCI.
They also come from different issuers: Invesco and USCF. Their fees differ too: 0.58% for PDBC and 1.03% for USCI.
USCI currently has the higher Sharpe Ratio (2.05 vs 1.81), 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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