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VTAPX vs. EARRX
Performance
Return for Risk
Dividends
Drawdowns
Volatility

VTAPX vs. EARRX

Last updated Apr 2, 2026

Compare and contrast key facts about Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares (VTAPX) and Eaton Vance Short Duration Inflation-Protected Income Fund Class A (EARRX).

VTAPX is managed by Vanguard. It was launched on Oct 16, 2012. EARRX is managed by Eaton Vance. It was launched on Mar 31, 2010.

Performance

VTAPX vs. EARRX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares (VTAPX) and Eaton Vance Short Duration Inflation-Protected Income Fund Class A (EARRX). The values are adjusted to include any dividend payments, if applicable.

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VTAPX vs. EARRX - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
VTAPX
Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares		0.97%6.03%4.73%4.59%-2.84%5.26%4.97%4.85%0.53%0.82%
EARRX
Eaton Vance Short Duration Inflation-Protected Income Fund Class A		0.38%5.46%5.39%5.95%-3.22%7.50%5.05%5.29%-0.49%1.81%

Returns By Period

In the year-to-date period, VTAPX achieves a 0.97% return, which is significantly higher than EARRX's 0.38% return. Over the past 10 years, VTAPX has underperformed EARRX with an annualized return of 3.05%, while EARRX has yielded a comparatively higher 3.61% annualized return.

VTAPX

1D
0.00%
1M
0.08%
YTD
0.97%
6M
1.23%
1Y
3.86%
3Y*
4.67%
5Y*
3.47%
10Y*
3.05%

EARRX

1D
0.10%
1M
-0.01%
YTD
0.38%
6M
0.33%
1Y
3.08%
3Y*
4.84%
5Y*
3.78%
10Y*
3.61%
*Multi-year figures are annualized to reflect compound growth (CAGR)

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Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares

Eaton Vance Short Duration Inflation-Protected Income Fund Class A

Often compared with VTAPX:
VTAPX vs. VTIPVTAPX vs. FIPDXVTAPX vs. VBTLXVTAPX vs. VTSPXVTAPX vs. VBILXVTAPX vs. TRBUXVTAPX vs. BNDX
Often compared with EARRX:
EARRX vs. RCTIXEARRX vs. SPIBEARRX vs. VTSPXEARRX vs. BIIPXEARRX vs. DFAAXEARRX vs. FFNYXEARRX vs. TIILX

VTAPX vs. EARRX - Expense Ratio Comparison

VTAPX has a 0.06% expense ratio, which is lower than EARRX's 0.85% expense ratio.

EARRX
Eaton Vance Short Duration Inflation-Protected Income Fund Class A
VTAPX
Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares

Return for Risk

VTAPX vs. EARRX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
VTAPX
VTAPX Risk / Return Rank: 9595
Overall Rank
VTAPX Sharpe Ratio Rank: 9494
Sharpe Ratio Rank
VTAPX Sortino Ratio Rank: 9595
Sortino Ratio Rank
VTAPX Omega Ratio Rank: 9393
Omega Ratio Rank
VTAPX Calmar Ratio Rank: 9898
Calmar Ratio Rank
VTAPX Martin Ratio Rank: 9696
Martin Ratio Rank
EARRX
EARRX Risk / Return Rank: 8787
Overall Rank
EARRX Sharpe Ratio Rank: 8484
Sharpe Ratio Rank
EARRX Sortino Ratio Rank: 8585
Sortino Ratio Rank
EARRX Omega Ratio Rank: 8585
Omega Ratio Rank
EARRX Calmar Ratio Rank: 9090
Calmar Ratio Rank
EARRX Martin Ratio Rank: 9292
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

VTAPX vs. EARRX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares (VTAPX) and Eaton Vance Short Duration Inflation-Protected Income Fund Class A (EARRX). 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.

VTAPXEARRXDifference

Sharpe ratio

Return per unit of total volatility

2.18

1.66

+0.52

Sortino ratio

Return per unit of downside risk

3.25

2.37

+0.89

Omega ratio

Gain probability vs. loss probability

1.47

1.37

+0.10

Calmar ratio

Return relative to maximum drawdown

4.43

2.61

+1.82

Martin ratio

Return relative to average drawdown

13.99

11.45

+2.54

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VTAPX vs. EARRX - Sharpe Ratio Comparison

The current VTAPX Sharpe Ratio is 2.18, which is higher than the EARRX Sharpe Ratio of 1.66. The chart below compares the historical Sharpe Ratios of VTAPX and EARRX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

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Sharpe Ratios by Period

VTAPXEARRXDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

2.18

1.66

+0.52

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

1.31

1.37

-0.06

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

1.37

1.33

+0.04

Sharpe Ratio (All Time)

Calculated using the full available price history

1.04

1.05

0.00

Correlation

The correlation between VTAPX and EARRX is 0.77, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

VTAPX vs. EARRX - Dividend Comparison

VTAPX's dividend yield for the trailing twelve months is around 3.55%, less than EARRX's 3.87% yield.

TTM20252024202320222021202020192018201720162015
VTAPX
Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares		3.55%3.78%2.68%2.84%6.82%4.67%1.19%1.94%2.45%1.52%0.76%0.00%
EARRX
Eaton Vance Short Duration Inflation-Protected Income Fund Class A		3.87%4.36%3.83%4.24%4.82%3.32%2.02%2.46%2.67%1.90%2.00%1.73%

Drawdowns

VTAPX vs. EARRX - Drawdown Comparison

The maximum VTAPX drawdown since its inception was -5.33%, smaller than the maximum EARRX drawdown of -10.27%. Use the drawdown chart below to compare losses from any high point for VTAPX and EARRX.

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Drawdown Indicators

VTAPXEARRXDifference

Max Drawdown

Largest peak-to-trough decline

-5.33%

-10.27%

+4.94%

Max Drawdown (1Y)

Largest decline over 1 year

-0.92%

-1.18%

+0.26%

Max Drawdown (5Y)

Largest decline over 5 years

-5.33%

-6.39%

+1.06%

Max Drawdown (10Y)

Largest decline over 10 years

-5.33%

-10.27%

+4.94%

Current Drawdown

Current decline from peak

-0.28%

-0.41%

+0.13%

Average Drawdown

Average peak-to-trough decline

-1.04%

-1.09%

+0.05%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.29%

0.27%

+0.02%

Volatility

VTAPX vs. EARRX - Volatility Comparison

Vanguard Short-Term Inflation-Protected Securities Index Fund Admiral Shares (VTAPX) and Eaton Vance Short Duration Inflation-Protected Income Fund Class A (EARRX) have volatilities of 0.59% and 0.59%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

VTAPXEARRXDifference

Volatility (1M)

Calculated over the trailing 1-month period

0.59%

0.59%

0.00%

Volatility (6M)

Calculated over the trailing 6-month period

0.96%

1.06%

-0.10%

Volatility (1Y)

Calculated over the trailing 1-year period

1.79%

1.87%

-0.08%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

2.67%

2.78%

-0.11%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

2.23%

2.71%

-0.48%