EIBRX vs. EEIAX

Last updated Jun 23, 2026

EIBRX (Eaton Vance Income Fund of Boston Class R6) and EEIAX (Eaton Vance Emerging Markets Local Income Fund) are both mutual funds - EIBRX is a High Yield Bonds fund actively managed by Eaton Vance, while EEIAX is a Emerging Markets Bonds fund managed by Eaton Vance. Over the past 10 years, EIBRX returned 5.52%/yr vs 4.86%/yr for EEIAX. At a 0.42 correlation, their price movements are largely independent. EIBRX charges 0.62%/yr vs 1.19%/yr for EEIAX.

Performance

EIBRX vs. EEIAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Eaton Vance Income Fund of Boston Class R6 (EIBRX) and Eaton Vance Emerging Markets Local Income Fund (EEIAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EIBRX achieves a 1.17% return, which is significantly lower than EEIAX's 4.30% return. Over the past 10 years, EIBRX has outperformed EEIAX with an annualized return of 5.52%, while EEIAX has yielded a comparatively lower 4.86% annualized return.

EIBRX

• 1D: 0.00%
• 1M: 0.93%
• YTD: 1.17%
• 6M: 1.91%
• 1Y: 6.39%
• 3Y*: 8.13%
• 5Y*: 4.69%
• 10Y*: 5.52%

EEIAX

• 1D: -0.56%
• 1M: 1.61%
• YTD: 4.30%
• 6M: 5.30%
• 1Y: 16.81%
• 3Y*: 9.55%
• 5Y*: 4.22%
• 10Y*: 4.86%

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

EIBRX vs. EEIAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EIBRX Eaton Vance Income Fund of Boston Class R6	1.17%	8.58%	7.48%	12.24%	-7.81%	5.91%	5.20%	13.70%	-2.39%	6.38%
EEIAX Eaton Vance Emerging Markets Local Income Fund	4.30%	23.43%	-1.23%	13.63%	-11.99%	-7.64%	4.68%	22.66%	-8.38%	16.10%

Correlation

The correlation between EIBRX and EEIAX is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.49
Correlation (3Y) Calculated over the trailing 3-year period	0.43
Correlation (5Y) Calculated over the trailing 5-year period	0.46
Correlation (10Y) Calculated over the trailing 10-year period	0.41
Correlation (All Time) Calculated using the full available price history since Jan 2, 2015	0.42

Return for Risk

EIBRX vs. EEIAX — Risk / Return Rank

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

EIBRX

EIBRX Risk / Return Rank: 68
EIBRX Sharpe Ratio Rank: 50
EIBRX Sortino Ratio Rank: 76
EIBRX Omega Ratio Rank: 79
EIBRX Calmar Ratio Rank: 54
EIBRX Martin Ratio Rank: 82

EEIAX

EEIAX Risk / Return Rank: 58
EEIAX Sharpe Ratio Rank: 68
EEIAX Sortino Ratio Rank: 70
EEIAX Omega Ratio Rank: 73
EEIAX Calmar Ratio Rank: 38
EEIAX Martin Ratio Rank: 39

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.

EIBRX vs. EEIAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Eaton Vance Income Fund of Boston Class R6 (EIBRX) and Eaton Vance Emerging Markets Local Income Fund (EEIAX). 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.

	EIBRX	EEIAX	Difference
Sharpe ratio: Return per unit of total volatility	1.93	2.22	-0.29
Sortino ratio: Return per unit of downside risk	3.35	3.18	+0.17
Omega ratio: Gain probability vs. loss probability	1.47	1.43	+0.04
Calmar ratio: Return relative to maximum drawdown	2.69	2.24	+0.45
Martin ratio: Return relative to average drawdown	14.23	8.02	+6.21

EIBRX vs. EEIAX - Sharpe Ratio Comparison

The current EIBRX Sharpe Ratio is 1.93, which is comparable to the EEIAX Sharpe Ratio of 2.22. The chart below compares the historical Sharpe Ratios of EIBRX and EEIAX, 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

EIBRX vs. EEIAX - Drawdown Comparison

The maximum EIBRX drawdown since its inception was -21.03%, smaller than the maximum EEIAX drawdown of -31.70%. Use the drawdown chart below to compare losses from any high point for EIBRX and EEIAX.

Drawdown Indicators

	EIBRX	EEIAX	Difference
Max Drawdown Largest peak-to-trough decline	-21.03%	-31.70%	+10.67%
Max Drawdown (1Y) Largest decline over 1 year	-2.47%	-7.40%	+4.93%
Max Drawdown (3Y) Largest decline over 3 years	-3.48%	-9.34%	+5.86%
Max Drawdown (5Y) Largest decline over 5 years	-12.27%	-25.94%	+13.67%
Max Drawdown (10Y) Largest decline over 10 years	-21.03%	-28.43%	+7.40%
Current Drawdown Current decline from peak	-0.19%	-1.58%	+1.39%
Average Drawdown Average peak-to-trough decline	-1.79%	-8.90%	+7.11%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.46%	2.06%	-1.60%

Volatility

EIBRX vs. EEIAX - Volatility Comparison

The current volatility for Eaton Vance Income Fund of Boston Class R6 (EIBRX) is 1.07%, while Eaton Vance Emerging Markets Local Income Fund (EEIAX) has a volatility of 2.18%. This indicates that EIBRX experiences smaller price fluctuations and is considered to be less risky than EEIAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EIBRX	EEIAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.07%	2.18%	-1.11%
Volatility (6M) Calculated over the trailing 6-month period	2.78%	6.45%	-3.67%
Volatility (1Y) Calculated over the trailing 1-year period	3.44%	7.46%	-4.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.95%	8.21%	-3.26%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.45%	8.42%	-2.97%

EIBRX vs. EEIAX - Expense Ratio Comparison

EIBRX has a 0.62% expense ratio, which is lower than EEIAX's 1.19% expense ratio.

Dividends

EIBRX vs. EEIAX - Dividend Comparison

EIBRX's dividend yield for the trailing twelve months is around 6.43%, less than EEIAX's 9.94% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EEIAX Eaton Vance Emerging Markets Local Income Fund	9.94%	8.48%	11.19%	11.34%	13.39%	11.14%	9.77%	13.03%	10.48%	8.74%	10.80%	11.65%
EIBRX Eaton Vance Income Fund of Boston Class R6	6.43%	6.25%	6.21%	5.93%	6.04%	5.36%	6.03%	5.97%	6.42%	5.87%	6.18%	6.90%

Frequently Asked Questions

Can I hold both EIBRX and EEIAX in my portfolio?

EIBRX and EEIAX have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EIBRX or EEIAX?

EEIAX has higher volatility (2.18%) compared to EIBRX (1.07%). In terms of maximum drawdown, EIBRX dropped -21.03% vs EEIAX's -31.70%.

Which has better risk-adjusted returns?

EEIAX currently has the higher Sharpe Ratio (2.22 vs 1.93), 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.