WEEK vs. PDBC
WEEK (Roundhill Weekly T-Bill ETF) and PDBC (Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF) are both exchange-traded funds - WEEK is a Ultrashort Bond fund actively managed by Roundhill, while PDBC is a Commodities fund actively managed by Invesco. Both are actively managed. Over the past year, WEEK returned 3.81% vs 45.46% for PDBC. At a correlation of -0.19, they often move in opposite directions. WEEK charges 0.19%/yr vs 0.58%/yr for PDBC.
Performance
WEEK vs. PDBC - Performance Comparison
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Returns By Period
In the year-to-date period, WEEK achieves a 1.44% return, which is significantly lower than PDBC's 36.23% return.
WEEK
- 1D
- 0.02%
- 1M
- 0.28%
- YTD
- 1.44%
- 6M
- 1.74%
- 1Y
- 3.81%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
PDBC
- 1D
- 0.39%
- 1M
- -3.37%
- YTD
- 36.23%
- 6M
- 36.27%
- 1Y
- 45.46%
- 3Y*
- 14.42%
- 5Y*
- 12.39%
- 10Y*
- 8.79%
WEEK vs. PDBC - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
WEEK Roundhill Weekly T-Bill ETF | 1.44% | 3.37% |
PDBC Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF | 36.23% | 4.11% |
Correlation
The correlation between WEEK and PDBC is -0.24, 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 | -0.24 |
Correlation (All Time) Calculated using the full available price history since Mar 7, 2025 | -0.19 |
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Return for Risk
WEEK vs. PDBC — Risk / Return Rank
WEEK
PDBC
WEEK vs. PDBC - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Roundhill Weekly T-Bill ETF (WEEK) 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.
| WEEK | PDBC | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +6.84 | ||
| Sortino ratioReturn per unit of downside risk | +16.00 | ||
| Omega ratioGain probability vs. loss probability | 4.65 | 1.43 | +3.23 |
| Calmar ratioReturn relative to maximum drawdown | 29.49 | 6.35 | +23.14 |
| Martin ratioReturn relative to average drawdown | 263.82 | 13.39 | +250.43 |
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
| WEEK | PDBC | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 9.29 | 2.46 | +6.84 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 0.65 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.50 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 10.05 | 0.23 | +9.82 |
Drawdowns
WEEK vs. PDBC - Drawdown Comparison
The maximum WEEK drawdown since its inception was -0.13%, smaller than the maximum PDBC drawdown of -49.52%. Use the drawdown chart below to compare losses from any high point for WEEK and PDBC.
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Drawdown Indicators
| WEEK | PDBC | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -0.13% | -49.52% | +49.39% |
Max Drawdown (1Y)Largest decline over 1 year | -0.13% | -7.19% | +7.06% |
Max Drawdown (3Y)Largest decline over 3 years | — | -13.95% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -27.63% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -40.73% | — |
Current DrawdownCurrent decline from peak | 0.00% | -4.55% | +4.55% |
Average DrawdownAverage peak-to-trough decline | -0.01% | -23.21% | +23.20% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.01% | 3.41% | -3.40% |
Volatility
WEEK vs. PDBC - Volatility Comparison
The current volatility for Roundhill Weekly T-Bill ETF (WEEK) is 0.07%, while Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC) has a volatility of 6.20%. This indicates that WEEK 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
| WEEK | PDBC | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.07% | 6.20% | -6.13% |
Volatility (6M)Calculated over the trailing 6-month period | 0.25% | 15.78% | -15.53% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.41% | 18.61% | -18.20% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 0.39% | 19.12% | -18.73% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 0.39% | 17.78% | -17.39% |
WEEK vs. PDBC - Expense Ratio Comparison
WEEK has a 0.19% expense ratio, which is lower than PDBC's 0.58% expense ratio.
Dividends
WEEK vs. PDBC - Dividend Comparison
WEEK's dividend yield for the trailing twelve months is around 3.72%, more than PDBC's 2.82% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
PDBC Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF | 2.82% | 3.84% | 4.42% | 4.21% | 13.05% | 50.83% | 0.01% | 1.40% | 1.00% | 3.83% | 6.51% |
WEEK Roundhill Weekly T-Bill ETF | 3.72% | 3.27% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
WEEK and PDBC have a correlation of -0.24, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PDBC has higher volatility (6.20%) compared to WEEK (0.07%). In terms of maximum drawdown, WEEK dropped -0.13% vs PDBC's -49.52%.
On 1-year performance, PDBC leads with 45.46% vs 3.81% for WEEK. On fees, WEEK is cheaper at 0.19% per year. On volatility, WEEK has been the lower-risk option at 0.07%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, PDBC has performed better with a 45.46% return vs 3.81%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
WEEK is cheaper with a 0.19% expense ratio, compared with 0.58% for PDBC.
WEEK has the higher dividend yield at 3.72%, compared with 2.82% for PDBC.
WEEK is categorized as Ultrashort Bond, while PDBC is Commodities. They also come from different issuers: Roundhill and Invesco. Their fees differ too: 0.19% for WEEK and 0.58% for PDBC.
WEEK currently has the higher Sharpe Ratio (9.29 vs 2.46), 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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