TIP vs. PDBC
TIP (iShares TIPS Bond ETF) and PDBC (Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF) are both exchange-traded funds - TIP is a Inflation-Protected Bonds fund tracking the ICE U.S. Treasury Inflation Linked Bond Index, while PDBC is a Commodities fund actively managed by Invesco. TIP is passively managed, while PDBC is actively managed. Over the past 10 years, TIP returned 2.37%/yr vs 9.21%/yr for PDBC. Their 0.06 correlation means their historical movements had little consistent relationship. TIP charges 0.18%/yr vs 0.58%/yr for PDBC.
Performance
TIP vs. PDBC - Performance Comparison
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Returns By Period
In the year-to-date period, TIP achieves a 0.54% return, which is significantly lower than PDBC's 32.53% return. Over the past 10 years, TIP has underperformed PDBC with an annualized return of 2.37%, while PDBC has yielded a comparatively higher 9.21% annualized return.
TIP
- 1D
- -0.10%
- 1M
- -0.50%
- 6M
- 0.02%
- YTD
- 0.54%
- 1Y
- 2.51%
- 3Y*
- 3.73%
- 5Y*
- 0.16%
- 10Y*
- 2.37%
- ALL TIME*
- 3.46%
PDBC
- 1D
- 0.34%
- 1M
- 11.28%
- 6M
- 20.94%
- YTD
- 32.53%
- 1Y
- 36.43%
- 3Y*
- 10.51%
- 5Y*
- 11.22%
- 10Y*
- 9.21%
- ALL TIME*
- 3.89%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $92.97M | $139.65M | $120.69M | |
| $209.70M | $179.93M | $215.65M |
TIP vs. PDBC - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TIP iShares TIPS Bond ETF | 0.54% | 6.77% | 1.65% | 3.80% | -12.26% | 5.68% | 10.84% | 8.35% | -1.42% | 2.92% |
PDBC Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF | 32.53% | 5.96% | 2.09% | -6.25% | 19.23% | 41.72% | -7.84% | 11.44% | -12.78% | 5.06% |
Correlation
The correlation between TIP and PDBC is -0.13, meaning they have often moved in opposite directions in the past. This relationship can weaken or reverse as market conditions change.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | -0.13 |
Correlation (3Y) Balances recent behavior with more history. | -0.03 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.07 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.07 |
Correlation (All Time) Calculated using the full available price history since Nov 7, 2014 | 0.06 |
The correlation between TIP and PDBC shifts across timeframes, from -0.13 (1 year) to 0.07 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
TIP vs. PDBC — Risk / Return Rank
TIP
PDBC
TIP vs. PDBC - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares TIPS Bond ETF (TIP) 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.
| TIP | PDBC | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.13 | ||
| Sortino ratioReturn per unit of downside risk | -1.38 | ||
| Omega ratioGain probability vs. loss probability | 1.13 | 1.32 | -0.19 |
| Calmar ratioReturn relative to maximum drawdown | 1.27 | 2.21 | -0.94 |
| Martin ratioReturn relative to average drawdown | 3.39 | 7.40 | -4.00 |
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Drawdowns
TIP vs. PDBC - Drawdown Comparison
The maximum TIP drawdown since its inception was -14.57%, smaller than the maximum PDBC drawdown of -49.52%. Use the drawdown chart below to compare losses from any high point for TIP and PDBC.
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Drawdown Indicators
| TIP | PDBC | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -14.57% | -49.52% | +34.95% |
Max Drawdown (1Y)Largest decline over 1 year | -1.98% | -16.55% | +14.57% |
Max Drawdown (3Y)Largest decline over 3 years | -3.71% | -16.55% | +12.84% |
Max Drawdown (5Y)Largest decline over 5 years | -14.51% | -27.63% | +13.12% |
Max Drawdown (10Y)Largest decline over 10 years | -14.51% | -40.73% | +26.22% |
Current DrawdownCurrent decline from peak | -1.31% | -7.14% | +5.83% |
Average DrawdownAverage peak-to-trough decline | -3.41% | -23.03% | +19.62% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.74% | 4.98% | -4.24% |
Volatility
TIP vs. PDBC - Volatility Comparison
The current volatility for iShares TIPS Bond ETF (TIP) is 0.73%, while Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC) has a volatility of 7.00%. This indicates that TIP 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
| TIP | PDBC | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.73% | 7.00% | -6.27% |
Volatility (6M)Calculated over the trailing 6-month period | 2.52% | 17.41% | -14.89% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.39% | 19.62% | -16.23% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.19% | 19.27% | -13.08% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.72% | 17.83% | -12.11% |
TIP vs. PDBC - Expense Ratio Comparison
TIP has a 0.18% expense ratio, which is lower than PDBC's 0.58% expense ratio.
Dividends
TIP vs. PDBC - Dividend Comparison
TIP's dividend yield for the trailing twelve months is around 4.46%, more than PDBC's 2.90% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PDBC Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF | 2.90% | 3.84% | 4.42% | 4.21% | 13.05% | 50.83% | 0.01% | 1.40% | 1.00% | 3.83% | 6.51% | 0.00% |
TIP iShares TIPS Bond ETF | 4.46% | 3.46% | 2.52% | 2.73% | 6.96% | 4.28% | 1.17% | 1.75% | 2.71% | 2.07% | 1.48% | 0.34% |
Frequently Asked Questions
TIP and PDBC have a correlation of -0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PDBC has higher volatility (7.00%) compared to TIP (0.73%). In terms of maximum drawdown, TIP dropped -14.57% vs PDBC's -49.52%.
On 10-year performance, PDBC leads with 9.21% vs 2.37% for TIP. On fees, TIP is cheaper at 0.18% per year. On volatility, TIP has been the lower-risk option at 0.73%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, PDBC has performed better with a 9.21% return vs 2.37%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
TIP is cheaper with a 0.18% expense ratio, compared with 0.58% for PDBC.
TIP has the higher dividend yield at 4.46%, compared with 2.90% for PDBC.
TIP is categorized as Inflation-Protected Bonds, while PDBC is Commodities. They also come from different issuers: iShares and Invesco. Their fees differ too: 0.18% for TIP and 0.58% for PDBC.
PDBC currently has the higher Sharpe Ratio (1.87 vs 0.74), 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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