VTIP vs. CPII
VTIP (Vanguard Short-Term Inflation-Protected Securities ETF) and CPII (Ionic Inflation Protection ETF) are both Inflation-Protected Bonds funds. VTIP is passively managed, while CPII is actively managed. Over the past 3 years, VTIP returned 5.26%/yr vs 5.05%/yr for CPII. At a correlation of -0.08, they often move in opposite directions. VTIP charges 0.03%/yr vs 0.74%/yr for CPII.
Performance
VTIP vs. CPII - Performance Comparison
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Returns By Period
In the year-to-date period, VTIP achieves a 2.05% return, which is significantly lower than CPII's 4.27% return.
VTIP
- 1D
- 0.00%
- 1M
- 0.04%
- YTD
- 2.05%
- 6M
- 2.03%
- 1Y
- 4.70%
- 3Y*
- 5.26%
- 5Y*
- 3.37%
- 10Y*
- 3.14%
CPII
- 1D
- 0.13%
- 1M
- 0.26%
- YTD
- 4.27%
- 6M
- 4.13%
- 1Y
- 4.42%
- 3Y*
- 5.05%
- 5Y*
- —
- 10Y*
- —
VTIP vs. CPII - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
VTIP Vanguard Short-Term Inflation-Protected Securities ETF | 2.05% | 6.07% | 4.74% | 4.62% | -1.44% |
CPII Ionic Inflation Protection ETF | 4.27% | 2.76% | 6.05% | 1.79% | 1.22% |
Correlation
The correlation between VTIP and CPII is 0.27, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.27 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.13 |
Correlation (All Time) Calculated using the full available price history since Jun 30, 2022 | -0.08 |
The correlation between VTIP and CPII shifts across timeframes, from -0.13 (3 years) to 0.27 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
VTIP vs. CPII — Risk / Return Rank
VTIP
CPII
VTIP vs. CPII - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Short-Term Inflation-Protected Securities ETF (VTIP) 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.
| VTIP | CPII | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.87 | ||
| Sortino ratioReturn per unit of downside risk | +3.54 | ||
| Omega ratioGain probability vs. loss probability | 1.67 | 1.25 | +0.42 |
| Calmar ratioReturn relative to maximum drawdown | 6.75 | 2.73 | +4.01 |
| Martin ratioReturn relative to average drawdown | 26.06 | 6.37 | +19.69 |
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
| VTIP | CPII | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 3.15 | 1.28 | +1.87 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 1.22 | — | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 1.15 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.89 | 0.69 | +0.20 |
Drawdowns
VTIP vs. CPII - Drawdown Comparison
The maximum VTIP drawdown since its inception was -6.27%, roughly equal to the maximum CPII drawdown of -6.40%. Use the drawdown chart below to compare losses from any high point for VTIP and CPII.
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Drawdown Indicators
| VTIP | CPII | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -6.27% | -6.40% | +0.13% |
Max Drawdown (1Y)Largest decline over 1 year | -0.70% | -1.62% | +0.92% |
Max Drawdown (3Y)Largest decline over 3 years | -0.98% | -4.39% | +3.41% |
Max Drawdown (5Y)Largest decline over 5 years | -5.50% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -6.27% | — | — |
Current DrawdownCurrent decline from peak | -0.02% | -0.40% | +0.38% |
Average DrawdownAverage peak-to-trough decline | -1.04% | -1.62% | +0.58% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.18% | 0.70% | -0.52% |
Volatility
VTIP vs. CPII - Volatility Comparison
The current volatility for Vanguard Short-Term Inflation-Protected Securities ETF (VTIP) is 0.43%, while Ionic Inflation Protection ETF (CPII) has a volatility of 1.14%. This indicates that VTIP 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
| VTIP | CPII | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.43% | 1.14% | -0.71% |
Volatility (6M)Calculated over the trailing 6-month period | 1.02% | 2.81% | -1.79% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.50% | 3.48% | -1.98% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.77% | 5.93% | -3.16% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.74% | 5.93% | -3.19% |
VTIP vs. CPII - Expense Ratio Comparison
VTIP has a 0.03% expense ratio, which is lower than CPII's 0.74% expense ratio.
Dividends
VTIP vs. CPII - Dividend Comparison
VTIP's dividend yield for the trailing twelve months is around 3.58%, less 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% |
VTIP Vanguard Short-Term Inflation-Protected Securities ETF | 3.58% | 3.81% | 2.70% | 2.86% | 6.84% | 4.68% | 1.20% | 1.95% | 2.45% | 1.52% | 0.76% |
Frequently Asked Questions
VTIP and CPII have a correlation of 0.27, 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 VTIP (0.43%). In terms of maximum drawdown, VTIP dropped -6.27% vs CPII's -6.40%.
On 3-year performance, VTIP leads with 5.26% vs 5.05% for CPII. On fees, VTIP is cheaper at 0.03% per year. On volatility, VTIP has been the lower-risk option at 0.43%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, VTIP has performed better with a 5.26% return vs 5.05%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
VTIP is cheaper with a 0.03% expense ratio, compared with 0.74% for CPII.
CPII has the higher dividend yield at 4.05%, compared with 3.58% for VTIP.
They also come from different issuers: Vanguard and Ionic. Their fees differ too: 0.03% for VTIP and 0.74% for CPII.
VTIP currently has the higher Sharpe Ratio (3.15 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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