TDTF vs. CPII
TDTF (FlexShares iBoxx 5-Year Target Duration TIPS Index Fund) and CPII (Ionic Inflation Protection ETF) are both Inflation-Protected Bonds funds. TDTF is passively managed, while CPII is actively managed. Over the past 3 years, TDTF returned 4.56%/yr vs 5.05%/yr for CPII. At a correlation of -0.22, they often move in opposite directions. TDTF charges 0.18%/yr vs 0.74%/yr for CPII.
Performance
TDTF vs. CPII - Performance Comparison
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Returns By Period
In the year-to-date period, TDTF achieves a 1.52% return, which is significantly lower than CPII's 4.27% return.
TDTF
- 1D
- -0.13%
- 1M
- -0.44%
- YTD
- 1.52%
- 6M
- 1.18%
- 1Y
- 5.07%
- 3Y*
- 4.56%
- 5Y*
- 1.72%
- 10Y*
- 2.93%
CPII
- 1D
- 0.13%
- 1M
- 0.26%
- YTD
- 4.27%
- 6M
- 4.13%
- 1Y
- 4.42%
- 3Y*
- 5.05%
- 5Y*
- —
- 10Y*
- —
TDTF vs. CPII - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
TDTF FlexShares iBoxx 5-Year Target Duration TIPS Index Fund | 1.52% | 7.83% | 2.40% | 4.10% | -2.71% |
CPII Ionic Inflation Protection ETF | 4.27% | 2.76% | 6.05% | 1.79% | 1.22% |
Correlation
The correlation between TDTF and CPII is 0.05, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.05 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.28 |
Correlation (All Time) Calculated using the full available price history since Jun 30, 2022 | -0.22 |
The correlation between TDTF and CPII shifts across timeframes, from -0.28 (3 years) to 0.05 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
TDTF vs. CPII — Risk / Return Rank
TDTF
CPII
TDTF vs. CPII - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for FlexShares iBoxx 5-Year Target Duration TIPS Index Fund (TDTF) and Ionic Inflation Protection ETF (CPII). 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.
| TDTF | CPII | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.39 | ||
| Sortino ratioReturn per unit of downside risk | +0.73 | ||
| Omega ratioGain probability vs. loss probability | 1.30 | 1.25 | +0.05 |
| Calmar ratioReturn relative to maximum drawdown | 3.22 | 2.73 | +0.49 |
| Martin ratioReturn relative to average drawdown | 10.66 | 6.37 | +4.30 |
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
| TDTF | CPII | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.67 | 1.28 | +0.39 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.30 | — | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.58 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.47 | 0.69 | -0.22 |
Drawdowns
TDTF vs. CPII - Drawdown Comparison
The maximum TDTF drawdown since its inception was -12.02%, which is greater than CPII's maximum drawdown of -6.40%. Use the drawdown chart below to compare losses from any high point for TDTF and CPII.
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Drawdown Indicators
| TDTF | CPII | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -12.02% | -6.40% | -5.62% |
Max Drawdown (1Y)Largest decline over 1 year | -1.58% | -1.62% | +0.04% |
Max Drawdown (3Y)Largest decline over 3 years | -3.79% | -4.39% | +0.60% |
Max Drawdown (5Y)Largest decline over 5 years | -12.02% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -12.02% | — | — |
Current DrawdownCurrent decline from peak | -0.57% | -0.40% | -0.17% |
Average DrawdownAverage peak-to-trough decline | -2.91% | -1.62% | -1.29% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.48% | 0.70% | -0.22% |
Volatility
TDTF vs. CPII - Volatility Comparison
The current volatility for FlexShares iBoxx 5-Year Target Duration TIPS Index Fund (TDTF) is 0.73%, while Ionic Inflation Protection ETF (CPII) has a volatility of 1.14%. This indicates that TDTF experiences smaller price fluctuations and is considered to be less risky than CPII based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TDTF | CPII | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.73% | 1.14% | -0.41% |
Volatility (6M)Calculated over the trailing 6-month period | 1.97% | 2.81% | -0.84% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.06% | 3.48% | -0.42% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.69% | 5.93% | -0.24% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.07% | 5.93% | -0.86% |
TDTF vs. CPII - Expense Ratio Comparison
TDTF has a 0.18% expense ratio, which is lower than CPII's 0.74% expense ratio.
Dividends
TDTF vs. CPII - Dividend Comparison
TDTF's dividend yield for the trailing twelve months is around 4.71%, more than CPII's 4.05% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CPII Ionic Inflation Protection ETF | 4.05% | 4.20% | 5.47% | 5.86% | 2.21% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
TDTF FlexShares iBoxx 5-Year Target Duration TIPS Index Fund | 4.71% | 4.58% | 3.98% | 3.97% | 7.60% | 4.55% | 1.13% | 1.80% | 2.60% | 2.20% | 1.51% | 0.21% |
Frequently Asked Questions
TDTF and CPII have a correlation of 0.05, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CPII has higher volatility (1.14%) compared to TDTF (0.73%). In terms of maximum drawdown, TDTF dropped -12.02% vs CPII's -6.40%.
On 3-year performance, CPII leads with 5.05% vs 4.56% for TDTF. On fees, TDTF is cheaper at 0.18% per year. On volatility, TDTF 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 3-year period, CPII has performed better with a 5.05% return vs 4.56%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
TDTF is cheaper with a 0.18% expense ratio, compared with 0.74% for CPII.
TDTF has the higher dividend yield at 4.71%, compared with 4.05% for CPII.
They also come from different issuers: Northern Trust and Ionic. Their fees differ too: 0.18% for TDTF and 0.74% for CPII.
TDTF currently has the higher Sharpe Ratio (1.67 vs 1.28), 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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