EWHYX vs. ABTYX

Last updated Jun 4, 2026

EWHYX (Eaton Vance High Yield Municipal Income Fund Class W) and ABTYX (AB High Income Municipal Portfolio) are both High Yield Muni funds. Over the past 3 years, EWHYX returned 5.80%/yr vs 5.33%/yr for ABTYX. Their correlation of 0.92 suggests significant overlap in exposure. EWHYX charges 0.18%/yr vs 0.53%/yr for ABTYX.

Performance

EWHYX vs. ABTYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Eaton Vance High Yield Municipal Income Fund Class W (EWHYX) and AB High Income Municipal Portfolio (ABTYX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EWHYX achieves a 3.35% return, which is significantly higher than ABTYX's 2.23% return.

EWHYX

• 1D: 0.12%
• 1M: 1.18%
• YTD: 3.35%
• 6M: 3.80%
• 1Y: 10.22%
• 3Y*: 5.80%
• 5Y*: —
• 10Y*: —

ABTYX

• 1D: 0.29%
• 1M: 1.15%
• YTD: 2.23%
• 6M: 2.62%
• 1Y: 8.58%
• 3Y*: 5.33%
• 5Y*: 0.69%
• 10Y*: 2.89%

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

EWHYX vs. ABTYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
EWHYX Eaton Vance High Yield Municipal Income Fund Class W	3.35%	3.59%	5.42%	7.74%	-11.72%	0.21%
ABTYX AB High Income Municipal Portfolio	2.23%	5.88%	4.64%	5.49%	-15.49%	0.87%

Correlation

The correlation between EWHYX and ABTYX is 0.88, 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	0.88
Correlation (3Y) Calculated over the trailing 3-year period	0.91
Correlation (All Time) Calculated using the full available price history since Nov 18, 2021	0.92

The correlation between EWHYX and ABTYX has been stable across timeframes, ranging from 0.88 to 0.92 - a consistent structural relationship.

Return for Risk

EWHYX vs. ABTYX — Risk / Return Rank

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

EWHYX

EWHYX Risk / Return Rank: 79
EWHYX Sharpe Ratio Rank: 83
EWHYX Sortino Ratio Rank: 92
EWHYX Omega Ratio Rank: 90
EWHYX Calmar Ratio Rank: 73
EWHYX Martin Ratio Rank: 57

ABTYX

ABTYX Risk / Return Rank: 51
ABTYX Sharpe Ratio Rank: 54
ABTYX Sortino Ratio Rank: 62
ABTYX Omega Ratio Rank: 69
ABTYX Calmar Ratio Rank: 35
ABTYX Martin Ratio Rank: 33

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.

EWHYX vs. ABTYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Eaton Vance High Yield Municipal Income Fund Class W (EWHYX) and AB High Income Municipal Portfolio (ABTYX). 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.

	EWHYX	ABTYX	Difference
Sharpe ratio Return per unit of total volatility	2.71	2.16	+0.55
Sortino ratio Return per unit of downside risk	4.62	3.31	+1.31
Omega ratio Gain probability vs. loss probability	1.65	1.46	+0.19
Calmar ratio Return relative to maximum drawdown	3.33	2.23	+1.10
Martin ratio Return relative to average drawdown	11.37	7.49	+3.89
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

EWHYX vs. ABTYX - Sharpe Ratio Comparison

The current EWHYX Sharpe Ratio is 2.71, which is comparable to the ABTYX Sharpe Ratio of 2.16. The chart below compares the historical Sharpe Ratios of EWHYX and ABTYX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	EWHYX	ABTYX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.71	2.16	+0.55
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.11	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.51	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.31	0.98	-0.66

Drawdowns

EWHYX vs. ABTYX - Drawdown Comparison

The maximum EWHYX drawdown since its inception was -16.52%, smaller than the maximum ABTYX drawdown of -21.44%. Use the drawdown chart below to compare losses from any high point for EWHYX and ABTYX.

Drawdown Indicators

	EWHYX	ABTYX	Difference
Max Drawdown Largest peak-to-trough decline	-16.52%	-21.44%	+4.92%
Max Drawdown (1Y) Largest decline over 1 year	-3.04%	-3.82%	+0.78%
Max Drawdown (3Y) Largest decline over 3 years	-7.54%	-9.37%	+1.83%
Max Drawdown (5Y) Largest decline over 5 years	—	-21.44%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-21.44%	—
Current Drawdown Current decline from peak	0.00%	-0.42%	+0.42%
Average Drawdown Average peak-to-trough decline	-5.37%	-3.96%	-1.41%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.89%	1.13%	-0.24%

Volatility

EWHYX vs. ABTYX - Volatility Comparison

The current volatility for Eaton Vance High Yield Municipal Income Fund Class W (EWHYX) is 1.39%, while AB High Income Municipal Portfolio (ABTYX) has a volatility of 1.53%. This indicates that EWHYX experiences smaller price fluctuations and is considered to be less risky than ABTYX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EWHYX	ABTYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.39%	1.53%	-0.14%
Volatility (6M) Calculated over the trailing 6-month period	2.59%	2.94%	-0.35%
Volatility (1Y) Calculated over the trailing 1-year period	3.76%	3.95%	-0.19%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.24%	6.06%	-0.82%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.24%	5.63%	-0.39%

EWHYX vs. ABTYX - Expense Ratio Comparison

EWHYX has a 0.18% expense ratio, which is lower than ABTYX's 0.53% expense ratio.

Dividends

EWHYX vs. ABTYX - Dividend Comparison

EWHYX's dividend yield for the trailing twelve months is around 5.11%, more than ABTYX's 4.61% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ABTYX AB High Income Municipal Portfolio	4.61%	5.93%	4.15%	3.10%	3.91%	2.59%	3.70%	4.27%	4.60%	4.20%	4.48%	4.69%
EWHYX Eaton Vance High Yield Municipal Income Fund Class W	5.11%	5.06%	4.92%	3.97%	4.60%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both EWHYX and ABTYX in my portfolio?

EWHYX and ABTYX have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EWHYX or ABTYX?

ABTYX has higher volatility (1.53%) compared to EWHYX (1.39%). In terms of maximum drawdown, EWHYX dropped -16.52% vs ABTYX's -21.44%.

Which has better risk-adjusted returns?

EWHYX currently has the higher Sharpe Ratio (2.71 vs 2.16), 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.