EOS vs. EISMX

Last updated Jul 17, 2026

EOS (Eaton Vance Enhanced Equity Income Fund II) and EISMX (Eaton Vance Atlanta Capital SMID-Cap Fund) are both mutual funds - EOS is a Derivative Income fund actively managed by Eaton Vance, while EISMX is a Mid Cap Growth Equities fund managed by Eaton Vance. Over the past 10 years, EOS returned 13.37%/yr vs 9.86%/yr for EISMX. A 0.61 correlation means they provide meaningful diversification when combined. EOS charges 1.09%/yr vs 0.88%/yr for EISMX.

Performance

EOS vs. EISMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Eaton Vance Enhanced Equity Income Fund II (EOS) and Eaton Vance Atlanta Capital SMID-Cap Fund (EISMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EOS achieves a -0.89% return, which is significantly lower than EISMX's 1.36% return. Over the past 10 years, EOS has outperformed EISMX with an annualized return of 13.37%, while EISMX has yielded a comparatively lower 9.86% annualized return.

EOS

• 1D: -0.63%
• 1M: 1.42%
• 6M: 1.44%
• YTD: -0.89%
• 1Y: -0.56%
• 3Y*: 15.30%
• 5Y*: 7.28%
• 10Y*: 13.37%

EISMX

• 1D: 0.24%
• 1M: 2.86%
• 6M: -4.28%
• YTD: 1.36%
• 1Y: -3.49%
• 3Y*: 6.26%
• 5Y*: 4.72%
• 10Y*: 9.86%

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

EOS vs. EISMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EOS Eaton Vance Enhanced Equity Income Fund II	-0.89%	5.77%	38.69%	22.59%	-26.50%	20.30%	29.45%	30.32%	2.77%	27.89%
EISMX Eaton Vance Atlanta Capital SMID-Cap Fund	1.36%	-5.66%	17.64%	14.01%	-8.77%	22.02%	11.31%	34.37%	-5.55%	24.71%

Correlation

The correlation between EOS and EISMX is 0.32, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.32
Correlation (3Y) Calculated over the trailing 3-year period	0.46
Correlation (5Y) Calculated over the trailing 5-year period	0.60
Correlation (10Y) Calculated over the trailing 10-year period	0.58
Correlation (All Time) Calculated using the full available price history since Jan 27, 2005	0.61

Over the past year, the correlation between EOS and EISMX has dropped to 0.32 - well below their long-term average of 0.61, suggesting their price drivers have been diverging.

Return for Risk

EOS vs. EISMX — Risk / Return Rank

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

EOS

EOS Risk / Return Rank: 3
EOS Sharpe Ratio Rank: 3
EOS Sortino Ratio Rank: 3
EOS Omega Ratio Rank: 3
EOS Calmar Ratio Rank: 3
EOS Martin Ratio Rank: 3

EISMX

EISMX Risk / Return Rank: 2
EISMX Sharpe Ratio Rank: 2
EISMX Sortino Ratio Rank: 2
EISMX Omega Ratio Rank: 2
EISMX Calmar Ratio Rank: 2
EISMX Martin Ratio Rank: 2

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.

EOS vs. EISMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Eaton Vance Enhanced Equity Income Fund II (EOS) and Eaton Vance Atlanta Capital SMID-Cap Fund (EISMX). 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.

	EOS	EISMX	Difference
Sharpe ratio: Return per unit of total volatility	-0.04	-0.20	+0.16
Sortino ratio: Return per unit of downside risk	0.06	-0.18	+0.24
Omega ratio: Gain probability vs. loss probability	1.01	0.98	+0.03
Calmar ratio: Return relative to maximum drawdown	-0.03	-0.21	+0.18
Martin ratio: Return relative to average drawdown	-0.10	-0.39	+0.28

EOS vs. EISMX - Sharpe Ratio Comparison

The current EOS Sharpe Ratio is -0.04, which is higher than the EISMX Sharpe Ratio of -0.20. The chart below compares the historical Sharpe Ratios of EOS and EISMX, 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

EOS vs. EISMX - Drawdown Comparison

The maximum EOS drawdown since its inception was -55.74%, which is greater than EISMX's maximum drawdown of -45.32%. Use the drawdown chart below to compare losses from any high point for EOS and EISMX.

Drawdown Indicators

	EOS	EISMX	Difference
Max Drawdown Largest peak-to-trough decline	-55.74%	-45.32%	-10.42%
Max Drawdown (1Y) Largest decline over 1 year	-17.12%	-14.66%	-2.46%
Max Drawdown (3Y) Largest decline over 3 years	-24.31%	-19.39%	-4.92%
Max Drawdown (5Y) Largest decline over 5 years	-34.32%	-19.81%	-14.51%
Max Drawdown (10Y) Largest decline over 10 years	-41.12%	-39.95%	-1.17%
Current Drawdown Current decline from peak	-3.17%	-9.90%	+6.73%
Average Drawdown Average peak-to-trough decline	-7.81%	-5.85%	-1.96%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.50%	8.05%	-2.55%

Volatility

EOS vs. EISMX - Volatility Comparison

The current volatility for Eaton Vance Enhanced Equity Income Fund II (EOS) is 4.02%, while Eaton Vance Atlanta Capital SMID-Cap Fund (EISMX) has a volatility of 4.40%. This indicates that EOS experiences smaller price fluctuations and is considered to be less risky than EISMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EOS	EISMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.02%	4.40%	-0.38%
Volatility (6M) Calculated over the trailing 6-month period	12.39%	11.59%	+0.80%
Volatility (1Y) Calculated over the trailing 1-year period	15.60%	15.70%	-0.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.80%	17.15%	+2.65%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.74%	18.82%	+1.92%

EOS vs. EISMX - Expense Ratio Comparison

EOS has a 1.09% expense ratio, which is higher than EISMX's 0.88% expense ratio.

Dividends

EOS vs. EISMX - Dividend Comparison

EOS's dividend yield for the trailing twelve months is around 8.27%, more than EISMX's 6.34% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EISMX Eaton Vance Atlanta Capital SMID-Cap Fund	6.34%	6.43%	7.26%	2.78%	10.37%	10.49%	9.80%	6.52%	7.20%	3.30%	3.58%	6.70%
EOS Eaton Vance Enhanced Equity Income Fund II	8.27%	7.81%	7.17%	7.38%	9.69%	5.60%	5.01%	6.65%	7.16%	6.90%	8.20%	7.70%

Frequently Asked Questions

Can I hold both EOS and EISMX in my portfolio?

EOS and EISMX have a correlation of 0.32, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EOS or EISMX?

EISMX has higher volatility (4.40%) compared to EOS (4.02%). In terms of maximum drawdown, EOS dropped -55.74% vs EISMX's -45.32%.

Which has better risk-adjusted returns?

EOS currently has the higher Sharpe Ratio (-0.04 vs -0.20), 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.