VTIPX vs. EIRRX
VTIPX (Vanguard Short-Term Inflation-Protected Securities Index Fund Investor Shares) and EIRRX (Eaton Vance Short Duration Inflation-Protected Income Fund) are both Inflation-Protected Bonds funds. Over the past 10 years, VTIPX returned 3.05%/yr vs 3.81%/yr for EIRRX. A 0.76 correlation means they provide meaningful diversification when combined. VTIPX charges 0.14%/yr vs 0.64%/yr for EIRRX.
Performance
VTIPX vs. EIRRX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, VTIPX achieves a 1.99% return, which is significantly higher than EIRRX's 1.64% return. Over the past 10 years, VTIPX has underperformed EIRRX with an annualized return of 3.05%, while EIRRX has yielded a comparatively higher 3.81% annualized return.
VTIPX
- 1D
- 0.00%
- 1M
- -0.00%
- YTD
- 1.99%
- 6M
- 1.96%
- 1Y
- 4.60%
- 3Y*
- 5.15%
- 5Y*
- 3.29%
- 10Y*
- 3.05%
EIRRX
- 1D
- 0.00%
- 1M
- 0.00%
- YTD
- 1.64%
- 6M
- 1.55%
- 1Y
- 4.05%
- 3Y*
- 5.30%
- 5Y*
- 3.71%
- 10Y*
- 3.81%
VTIPX vs. EIRRX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VTIPX Vanguard Short-Term Inflation-Protected Securities Index Fund Investor Shares | 1.99% | 5.96% | 4.65% | 4.51% | -2.93% | 5.21% | 4.85% | 4.74% | 0.49% | 0.72% |
EIRRX Eaton Vance Short Duration Inflation-Protected Income Fund | 1.64% | 4.63% | 5.65% | 6.33% | -3.08% | 7.84% | 5.25% | 5.60% | -0.15% | 1.94% |
Correlation
The correlation between VTIPX and EIRRX is 0.81, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.81 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.84 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.85 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.77 |
Correlation (All Time) Calculated using the full available price history since Jan 3, 2013 | 0.76 |
The correlation between VTIPX and EIRRX has been stable across timeframes, ranging from 0.76 to 0.85 - a consistent structural relationship.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
VTIPX vs. EIRRX — Risk / Return Rank
VTIPX
EIRRX
VTIPX vs. EIRRX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Short-Term Inflation-Protected Securities Index Fund Investor Shares (VTIPX) and Eaton Vance Short Duration Inflation-Protected Income Fund (EIRRX). 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.
| VTIPX | EIRRX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.40 | ||
| Sortino ratioReturn per unit of downside risk | +0.81 | ||
| Omega ratioGain probability vs. loss probability | 1.62 | 1.58 | +0.05 |
| Calmar ratioReturn relative to maximum drawdown | 6.27 | 4.48 | +1.79 |
| Martin ratioReturn relative to average drawdown | 24.45 | 18.95 | +5.50 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| VTIPX | EIRRX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.97 | 2.57 | +0.40 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 1.24 | 1.31 | -0.07 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 1.38 | 1.38 | -0.01 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.03 | 1.12 | -0.09 |
Drawdowns
VTIPX vs. EIRRX - Drawdown Comparison
The maximum VTIPX drawdown since its inception was -5.36%, smaller than the maximum EIRRX drawdown of -10.27%. Use the drawdown chart below to compare losses from any high point for VTIPX and EIRRX.
Loading charts...
Drawdown Indicators
| VTIPX | EIRRX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.36% | -10.27% | +4.91% |
Max Drawdown (1Y)Largest decline over 1 year | -0.72% | -0.89% | +0.17% |
Max Drawdown (3Y)Largest decline over 3 years | -0.95% | -1.67% | +0.72% |
Max Drawdown (5Y)Largest decline over 5 years | -5.36% | -6.22% | +0.86% |
Max Drawdown (10Y)Largest decline over 10 years | -5.36% | -10.27% | +4.91% |
Current DrawdownCurrent decline from peak | -0.04% | -0.10% | +0.06% |
Average DrawdownAverage peak-to-trough decline | -1.11% | -1.00% | -0.11% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.18% | 0.21% | -0.03% |
Volatility
VTIPX vs. EIRRX - Volatility Comparison
Vanguard Short-Term Inflation-Protected Securities Index Fund Investor Shares (VTIPX) has a higher volatility of 0.53% compared to Eaton Vance Short Duration Inflation-Protected Income Fund (EIRRX) at 0.45%. This indicates that VTIPX's price experiences larger fluctuations and is considered to be riskier than EIRRX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| VTIPX | EIRRX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.53% | 0.45% | +0.08% |
Volatility (6M)Calculated over the trailing 6-month period | 1.09% | 1.16% | -0.07% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.51% | 1.55% | -0.04% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.66% | 2.84% | -0.18% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.22% | 2.76% | -0.54% |
VTIPX vs. EIRRX - Expense Ratio Comparison
VTIPX has a 0.14% expense ratio, which is lower than EIRRX's 0.64% expense ratio.
Dividends
VTIPX vs. EIRRX - Dividend Comparison
VTIPX's dividend yield for the trailing twelve months is around 3.48%, less than EIRRX's 4.07% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
EIRRX Eaton Vance Short Duration Inflation-Protected Income Fund | 4.07% | 3.57% | 4.08% | 4.50% | 5.07% | 3.54% | 2.21% | 2.66% | 2.91% | 2.13% | 2.24% | 2.05% |
VTIPX Vanguard Short-Term Inflation-Protected Securities Index Fund Investor Shares | 3.48% | 3.70% | 2.60% | 2.76% | 6.74% | 4.59% | 1.11% | 1.88% | 2.37% | 1.50% | 0.55% | 0.00% |
Frequently Asked Questions
VTIPX and EIRRX have a correlation of 0.81, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VTIPX has higher volatility (0.53%) compared to EIRRX (0.45%). In terms of maximum drawdown, VTIPX dropped -5.36% vs EIRRX's -10.27%.
VTIPX currently has the higher Sharpe Ratio (2.97 vs 2.57), 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.
Find the right allocation for VTIPX and EIRRX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer