TDTT vs. CPII
TDTT (FlexShares iBoxx 3-Year Target Duration TIPS Index Fund) and CPII (Ionic Inflation Protection ETF) are both Inflation-Protected Bonds funds. TDTT is passively managed, while CPII is actively managed. Over the past 3 years, TDTT returned 5.00%/yr vs 5.05%/yr for CPII. At a correlation of -0.12, they often move in opposite directions. TDTT charges 0.18%/yr vs 0.74%/yr for CPII.
Performance
TDTT vs. CPII - Performance Comparison
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Returns By Period
In the year-to-date period, TDTT achieves a 1.81% return, which is significantly lower than CPII's 4.27% return.
TDTT
- 1D
- 0.00%
- 1M
- -0.06%
- YTD
- 1.81%
- 6M
- 1.77%
- 1Y
- 4.65%
- 3Y*
- 5.00%
- 5Y*
- 2.85%
- 10Y*
- 3.11%
CPII
- 1D
- 0.13%
- 1M
- 0.26%
- YTD
- 4.27%
- 6M
- 4.13%
- 1Y
- 4.42%
- 3Y*
- 5.05%
- 5Y*
- —
- 10Y*
- —
TDTT vs. CPII - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund | 1.81% | 6.67% | 3.96% | 4.40% | -2.02% |
CPII Ionic Inflation Protection ETF | 4.27% | 2.76% | 6.05% | 1.79% | 1.22% |
Correlation
The correlation between TDTT and CPII is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.20 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.17 |
Correlation (All Time) Calculated using the full available price history since Jun 30, 2022 | -0.12 |
The correlation between TDTT and CPII shifts across timeframes, from -0.17 (3 years) to 0.20 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
TDTT vs. CPII — Risk / Return Rank
TDTT
CPII
TDTT vs. CPII - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) 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.
| TDTT | CPII | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.26 | ||
| Sortino ratioReturn per unit of downside risk | +2.38 | ||
| Omega ratioGain probability vs. loss probability | 1.51 | 1.25 | +0.26 |
| Calmar ratioReturn relative to maximum drawdown | 5.17 | 2.73 | +2.44 |
| Martin ratioReturn relative to average drawdown | 16.59 | 6.37 | +10.22 |
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
| TDTT | CPII | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.54 | 1.28 | +1.26 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.78 | — | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.92 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.69 | 0.69 | 0.00 |
Drawdowns
TDTT vs. CPII - Drawdown Comparison
The maximum TDTT drawdown since its inception was -6.97%, which is greater than CPII's maximum drawdown of -6.40%. Use the drawdown chart below to compare losses from any high point for TDTT and CPII.
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Drawdown Indicators
| TDTT | CPII | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -6.97% | -6.40% | -0.57% |
Max Drawdown (1Y)Largest decline over 1 year | -0.90% | -1.62% | +0.72% |
Max Drawdown (3Y)Largest decline over 3 years | -1.53% | -4.39% | +2.86% |
Max Drawdown (5Y)Largest decline over 5 years | -6.97% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -6.97% | — | — |
Current DrawdownCurrent decline from peak | -0.14% | -0.40% | +0.26% |
Average DrawdownAverage peak-to-trough decline | -1.60% | -1.62% | +0.02% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.28% | 0.70% | -0.42% |
Volatility
TDTT vs. CPII - Volatility Comparison
The current volatility for FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) is 0.46%, while Ionic Inflation Protection ETF (CPII) has a volatility of 1.14%. This indicates that TDTT 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
| TDTT | CPII | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.46% | 1.14% | -0.68% |
Volatility (6M)Calculated over the trailing 6-month period | 1.21% | 2.81% | -1.60% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.85% | 3.48% | -1.63% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.67% | 5.93% | -2.26% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.38% | 5.93% | -2.55% |
TDTT vs. CPII - Expense Ratio Comparison
TDTT has a 0.18% expense ratio, which is lower than CPII's 0.74% expense ratio.
Dividends
TDTT vs. CPII - Dividend Comparison
TDTT's dividend yield for the trailing twelve months is around 4.54%, more than CPII's 4.05% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
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% |
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund | 4.54% | 4.52% | 4.01% | 3.88% | 6.97% | 4.53% | 1.15% | 1.91% | 2.48% | 1.88% | 1.01% |
Frequently Asked Questions
TDTT and CPII have a correlation of 0.20, 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 TDTT (0.46%). In terms of maximum drawdown, TDTT dropped -6.97% vs CPII's -6.40%.
On 3-year performance, CPII leads with 5.05% vs 5.00% for TDTT. On fees, TDTT is cheaper at 0.18% per year. On volatility, TDTT has been the lower-risk option at 0.46%. 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 5.00%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
TDTT is cheaper with a 0.18% expense ratio, compared with 0.74% for CPII.
TDTT has the higher dividend yield at 4.54%, compared with 4.05% for CPII.
They also come from different issuers: Northern Trust and Ionic. Their fees differ too: 0.18% for TDTT and 0.74% for CPII.
TDTT currently has the higher Sharpe Ratio (2.54 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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