ECSIX vs. ETSIX

Last updated Jun 25, 2026

ECSIX (Eaton Vance Short Duration Strategic Income Fund) and ETSIX (Eaton Vance Strategic Income Fund Class I) are both Multisector Bonds funds from Eaton Vance. Over the past 10 years, ECSIX returned 4.02%/yr vs 4.81%/yr for ETSIX. Their correlation of 0.81 suggests significant overlap in exposure. ECSIX charges 1.82%/yr vs 1.46%/yr for ETSIX.

Performance

ECSIX vs. ETSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Eaton Vance Short Duration Strategic Income Fund (ECSIX) and Eaton Vance Strategic Income Fund Class I (ETSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ECSIX achieves a 1.92% return, which is significantly lower than ETSIX's 2.34% return. Over the past 10 years, ECSIX has underperformed ETSIX with an annualized return of 4.02%, while ETSIX has yielded a comparatively higher 4.81% annualized return.

ECSIX

• 1D: 0.00%
• 1M: 0.82%
• YTD: 1.92%
• 6M: 2.21%
• 1Y: 8.01%
• 3Y*: 7.36%
• 5Y*: 4.19%
• 10Y*: 4.02%

ETSIX

• 1D: 0.15%
• 1M: 0.86%
• YTD: 2.34%
• 6M: 2.53%
• 1Y: 8.92%
• 3Y*: 8.11%
• 5Y*: 4.95%
• 10Y*: 4.81%

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

ECSIX vs. ETSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ECSIX Eaton Vance Short Duration Strategic Income Fund	1.92%	10.19%	5.71%	7.31%	-3.31%	0.69%	6.60%	5.76%	-3.37%	4.04%
ETSIX Eaton Vance Strategic Income Fund Class I	2.34%	10.88%	6.38%	8.24%	-2.55%	1.33%	7.52%	6.58%	-2.68%	4.90%

Correlation

The correlation between ECSIX and ETSIX is 0.82, 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	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (10Y) Calculated over the trailing 10-year period	0.82
Correlation (All Time) Calculated using the full available price history since Jan 23, 1998	0.81

The correlation between ECSIX and ETSIX has been stable across timeframes, ranging from 0.81 to 0.89 - a consistent structural relationship.

Return for Risk

ECSIX vs. ETSIX — Risk / Return Rank

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

ECSIX

ECSIX Risk / Return Rank: 86
ECSIX Sharpe Ratio Rank: 94
ECSIX Sortino Ratio Rank: 94
ECSIX Omega Ratio Rank: 92
ECSIX Calmar Ratio Rank: 81
ECSIX Martin Ratio Rank: 67

ETSIX

ETSIX Risk / Return Rank: 89
ETSIX Sharpe Ratio Rank: 96
ETSIX Sortino Ratio Rank: 95
ETSIX Omega Ratio Rank: 94
ETSIX Calmar Ratio Rank: 86
ETSIX Martin Ratio Rank: 76

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.

ECSIX vs. ETSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Eaton Vance Short Duration Strategic Income Fund (ECSIX) and Eaton Vance Strategic Income Fund Class I (ETSIX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	ECSIX	ETSIX	Difference
Sharpe ratio: Return per unit of total volatility	2.96	3.21	-0.25
Sortino ratio: Return per unit of downside risk	4.46	4.68	-0.21
Omega ratio: Gain probability vs. loss probability	1.64	1.70	-0.05
Calmar ratio: Return relative to maximum drawdown	3.45	3.82	-0.37
Martin ratio: Return relative to average drawdown	11.89	13.05	-1.16

ECSIX vs. ETSIX - Sharpe Ratio Comparison

The current ECSIX Sharpe Ratio is 2.96, which is comparable to the ETSIX Sharpe Ratio of 3.21. The chart below compares the historical Sharpe Ratios of ECSIX and ETSIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

ECSIX vs. ETSIX - Drawdown Comparison

The maximum ECSIX drawdown since its inception was -12.95%, roughly equal to the maximum ETSIX drawdown of -12.63%. Use the drawdown chart below to compare losses from any high point for ECSIX and ETSIX.

Drawdown Indicators

	ECSIX	ETSIX	Difference
Max Drawdown Largest peak-to-trough decline	-12.95%	-12.63%	-0.32%
Max Drawdown (1Y) Largest decline over 1 year	-2.43%	-2.43%	0.00%
Max Drawdown (3Y) Largest decline over 3 years	-2.64%	-2.52%	-0.12%
Max Drawdown (5Y) Largest decline over 5 years	-7.19%	-6.34%	-0.85%
Max Drawdown (10Y) Largest decline over 10 years	-12.53%	-12.28%	-0.25%
Current Drawdown Current decline from peak	-0.63%	-0.46%	-0.17%
Average Drawdown Average peak-to-trough decline	-1.34%	-1.43%	+0.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.70%	0.71%	-0.01%

Volatility

ECSIX vs. ETSIX - Volatility Comparison

The current volatility for Eaton Vance Short Duration Strategic Income Fund (ECSIX) is 0.92%, while Eaton Vance Strategic Income Fund Class I (ETSIX) has a volatility of 1.11%. This indicates that ECSIX experiences smaller price fluctuations and is considered to be less risky than ETSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ECSIX	ETSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.92%	1.11%	-0.19%
Volatility (6M) Calculated over the trailing 6-month period	2.26%	2.35%	-0.09%
Volatility (1Y) Calculated over the trailing 1-year period	2.84%	2.90%	-0.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.22%	3.24%	-0.02%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.17%	3.15%	+0.02%

ECSIX vs. ETSIX - Expense Ratio Comparison

ECSIX has a 1.82% expense ratio, which is higher than ETSIX's 1.46% expense ratio.

Dividends

ECSIX vs. ETSIX - Dividend Comparison

ECSIX's dividend yield for the trailing twelve months is around 6.32%, less than ETSIX's 7.09% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ECSIX Eaton Vance Short Duration Strategic Income Fund	6.32%	5.07%	6.21%	6.18%	4.78%	3.54%	3.47%	3.53%	3.19%	2.96%	3.20%	3.54%
ETSIX Eaton Vance Strategic Income Fund Class I	7.09%	5.65%	6.97%	6.93%	5.56%	4.31%	4.19%	4.29%	3.98%	3.70%	3.94%	4.32%

Frequently Asked Questions

Can I hold both ECSIX and ETSIX in my portfolio?

ECSIX and ETSIX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ECSIX or ETSIX?

ETSIX has higher volatility (1.11%) compared to ECSIX (0.92%). In terms of maximum drawdown, ECSIX dropped -12.95% vs ETSIX's -12.63%.

Which has better risk-adjusted returns?

ETSIX currently has the higher Sharpe Ratio (3.21 vs 2.96), 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.