EIRRX vs. CAT

Last updated Apr 2, 2026

Compare and contrast key facts about Eaton Vance Short Duration Inflation-Protected Income Fund (EIRRX) and Caterpillar Inc. (CAT).

EIRRX is managed by Eaton Vance. It was launched on Mar 31, 2010.

Performance

EIRRX vs. CAT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Eaton Vance Short Duration Inflation-Protected Income Fund (EIRRX) and Caterpillar Inc. (CAT). The values are adjusted to include any dividend payments, if applicable.

EIRRX vs. CAT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EIRRX Eaton Vance Short Duration Inflation-Protected Income Fund	0.45%	4.63%	5.65%	6.33%	-3.08%	7.84%	5.25%	5.60%	-0.15%	1.94%
CAT Caterpillar Inc.	27.78%	60.30%	24.66%	25.95%	18.60%	15.95%	26.97%	19.51%	-17.56%	75.03%

Returns By Period

In the year-to-date period, EIRRX achieves a 0.45% return, which is significantly lower than CAT's 27.78% return. Over the past 10 years, EIRRX has underperformed CAT with an annualized return of 3.76%, while CAT has yielded a comparatively higher 28.24% annualized return.

EIRRX

• 1D: 0.10%
• 1M: 0.05%
• YTD: 0.45%
• 6M: 0.45%
• 1Y: 3.33%
• 3Y*: 4.75%
• 5Y*: 3.82%
• 10Y*: 3.76%

CAT

• 1D: 3.09%
• 1M: -2.92%
• YTD: 27.78%
• 6M: 52.68%
• 1Y: 123.97%
• 3Y*: 49.64%
• 5Y*: 28.03%
• 10Y*: 28.24%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

EIRRX vs. CAT — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

EIRRX

EIRRX Risk / Return Rank: 89
EIRRX Sharpe Ratio Rank: 86
EIRRX Sortino Ratio Rank: 87
EIRRX Omega Ratio Rank: 88
EIRRX Calmar Ratio Rank: 92
EIRRX Martin Ratio Rank: 94

CAT

CAT Risk / Return Rank: 97
CAT Sharpe Ratio Rank: 98
CAT Sortino Ratio Rank: 97
CAT Omega Ratio Rank: 96
CAT Calmar Ratio Rank: 96
CAT Martin Ratio Rank: 98

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.

EIRRX vs. CAT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Eaton Vance Short Duration Inflation-Protected Income Fund (EIRRX) and Caterpillar Inc. (CAT). 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.

	EIRRX	CAT	Difference
Sharpe ratio Return per unit of total volatility	1.71	3.59	-1.88
Sortino ratio Return per unit of downside risk	2.44	4.17	-1.73
Omega ratio Gain probability vs. loss probability	1.38	1.56	-0.18
Calmar ratio Return relative to maximum drawdown	2.91	6.86	-3.95
Martin ratio Return relative to average drawdown	12.86	24.22	-11.37
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

EIRRX vs. CAT - Sharpe Ratio Comparison

The current EIRRX Sharpe Ratio is 1.71, which is lower than the CAT Sharpe Ratio of 3.59. The chart below compares the historical Sharpe Ratios of EIRRX and CAT, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	EIRRX	CAT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.71	3.59	-1.88
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.35	0.95	+0.40
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.37	0.93	+0.44
Sharpe Ratio (All Time) Calculated using the full available price history	1.10	0.34	+0.76

Correlation

The correlation between EIRRX and CAT is 0.14, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

EIRRX vs. CAT - Dividend Comparison

EIRRX's dividend yield for the trailing twelve months is around 4.11%, more than CAT's 0.81% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EIRRX Eaton Vance Short Duration Inflation-Protected Income Fund	4.11%	3.57%	4.08%	4.50%	5.07%	3.54%	2.21%	2.66%	2.91%	2.13%	2.24%	2.05%
CAT Caterpillar Inc.	0.81%	1.02%	1.49%	1.69%	1.93%	2.07%	2.26%	2.56%	2.58%	1.97%	3.32%	4.33%

Drawdowns

EIRRX vs. CAT - Drawdown Comparison

The maximum EIRRX drawdown since its inception was -10.27%, smaller than the maximum CAT drawdown of -73.43%. Use the drawdown chart below to compare losses from any high point for EIRRX and CAT.

Drawdown Indicators

	EIRRX	CAT	Difference
Max Drawdown Largest peak-to-trough decline	-10.27%	-73.43%	+63.16%
Max Drawdown (1Y) Largest decline over 1 year	-1.18%	-18.14%	+16.96%
Max Drawdown (5Y) Largest decline over 5 years	-6.22%	-34.05%	+27.83%
Max Drawdown (10Y) Largest decline over 10 years	-10.27%	-43.36%	+33.09%
Current Drawdown Current decline from peak	-0.44%	-5.77%	+5.33%
Average Drawdown Average peak-to-trough decline	-1.01%	-19.78%	+18.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.27%	5.14%	-4.87%

Volatility

EIRRX vs. CAT - Volatility Comparison

The current volatility for Eaton Vance Short Duration Inflation-Protected Income Fund (EIRRX) is 0.69%, while Caterpillar Inc. (CAT) has a volatility of 11.76%. This indicates that EIRRX experiences smaller price fluctuations and is considered to be less risky than CAT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EIRRX	CAT	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.69%	11.76%	-11.07%
Volatility (6M) Calculated over the trailing 6-month period	1.13%	26.46%	-25.33%
Volatility (1Y) Calculated over the trailing 1-year period	1.96%	34.71%	-32.75%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.85%	29.79%	-26.94%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.76%	30.52%	-27.76%