SSEIX vs. ARSMX

Last updated Jun 6, 2026

SSEIX (SouthernSun U.S. Equity) and ARSMX (AMG River Road Small-Mid Cap Value Fund) are both mutual funds - SSEIX is a Mid Cap Blend Equities fund managed by AMG, while ARSMX is a Small Cap Value Equities fund managed by AMG. Over the past 10 years, SSEIX returned 8.41%/yr vs 9.27%/yr for ARSMX. Their correlation of 0.87 suggests significant overlap in exposure. SSEIX charges 1.09%/yr vs 1.27%/yr for ARSMX.

Performance

SSEIX vs. ARSMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SouthernSun U.S. Equity (SSEIX) and AMG River Road Small-Mid Cap Value Fund (ARSMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SSEIX achieves a 12.54% return, which is significantly higher than ARSMX's 0.42% return. Over the past 10 years, SSEIX has underperformed ARSMX with an annualized return of 8.41%, while ARSMX has yielded a comparatively higher 9.27% annualized return.

SSEIX

• 1D: -0.28%
• 1M: -3.71%
• YTD: 12.54%
• 6M: 8.24%
• 1Y: 20.21%
• 3Y*: 10.98%
• 5Y*: 7.08%
• 10Y*: 8.41%

ARSMX

• 1D: 1.16%
• 1M: -0.73%
• YTD: 0.42%
• 6M: -4.40%
• 1Y: 2.24%
• 3Y*: 9.14%
• 5Y*: 3.76%
• 10Y*: 9.27%

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

SSEIX vs. ARSMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SSEIX SouthernSun U.S. Equity	12.54%	4.06%	5.40%	18.85%	-4.63%	22.75%	13.36%	31.61%	-23.12%	10.67%
ARSMX AMG River Road Small-Mid Cap Value Fund	0.42%	-0.83%	12.42%	14.48%	-8.62%	23.41%	1.71%	34.82%	-6.44%	15.26%

Correlation

The correlation between SSEIX and ARSMX is 0.79, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.79
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.88
Correlation (10Y) Calculated over the trailing 10-year period	0.87
Correlation (All Time) Calculated using the full available price history since Apr 12, 2012	0.87

The correlation between SSEIX and ARSMX has been stable across timeframes, ranging from 0.79 to 0.88 - a consistent structural relationship.

Return for Risk

SSEIX vs. ARSMX — Risk / Return Rank

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

SSEIX

SSEIX Risk / Return Rank: 17
SSEIX Sharpe Ratio Rank: 17
SSEIX Sortino Ratio Rank: 18
SSEIX Omega Ratio Rank: 15
SSEIX Calmar Ratio Rank: 21
SSEIX Martin Ratio Rank: 15

ARSMX

ARSMX Risk / Return Rank: 4
ARSMX Sharpe Ratio Rank: 4
ARSMX Sortino Ratio Rank: 4
ARSMX Omega Ratio Rank: 4
ARSMX Calmar Ratio Rank: 4
ARSMX Martin Ratio Rank: 4

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.

SSEIX vs. ARSMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SouthernSun U.S. Equity (SSEIX) and AMG River Road Small-Mid Cap Value Fund (ARSMX). 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.

	SSEIX	ARSMX	Difference
Sharpe ratio: Return per unit of total volatility	1.10	0.13	+0.97
Sortino ratio: Return per unit of downside risk	1.68	0.28	+1.40
Omega ratio: Gain probability vs. loss probability	1.19	1.03	+0.16
Calmar ratio: Return relative to maximum drawdown	1.60	0.18	+1.43
Martin ratio: Return relative to average drawdown	4.06	0.41	+3.65
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SSEIX vs. ARSMX - Sharpe Ratio Comparison

The current SSEIX Sharpe Ratio is 1.10, which is higher than the ARSMX Sharpe Ratio of 0.13. The chart below compares the historical Sharpe Ratios of SSEIX and ARSMX, 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

	SSEIX	ARSMX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.10	0.13	+0.97
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.35	0.21	+0.13
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.37	0.48	-0.10
Sharpe Ratio (All Time) Calculated using the full available price history	0.43	0.36	+0.08

Drawdowns

SSEIX vs. ARSMX - Drawdown Comparison

The maximum SSEIX drawdown since its inception was -48.45%, smaller than the maximum ARSMX drawdown of -51.75%. Use the drawdown chart below to compare losses from any high point for SSEIX and ARSMX.

Drawdown Indicators

	SSEIX	ARSMX	Difference
Max Drawdown Largest peak-to-trough decline	-48.45%	-51.75%	+3.30%
Max Drawdown (1Y) Largest decline over 1 year	-12.91%	-10.37%	-2.54%
Max Drawdown (3Y) Largest decline over 3 years	-27.10%	-19.34%	-7.76%
Max Drawdown (5Y) Largest decline over 5 years	-27.10%	-19.34%	-7.76%
Max Drawdown (10Y) Largest decline over 10 years	-48.45%	-42.96%	-5.49%
Current Drawdown Current decline from peak	-4.37%	-7.11%	+2.74%
Average Drawdown Average peak-to-trough decline	-7.50%	-8.11%	+0.61%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.08%	4.39%	+0.69%

Volatility

SSEIX vs. ARSMX - Volatility Comparison

SouthernSun U.S. Equity (SSEIX) has a higher volatility of 5.92% compared to AMG River Road Small-Mid Cap Value Fund (ARSMX) at 2.95%. This indicates that SSEIX's price experiences larger fluctuations and is considered to be riskier than ARSMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SSEIX	ARSMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.92%	2.95%	+2.97%
Volatility (6M) Calculated over the trailing 6-month period	13.58%	10.23%	+3.35%
Volatility (1Y) Calculated over the trailing 1-year period	18.89%	14.36%	+4.53%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.48%	17.79%	+2.69%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.65%	19.57%	+3.08%

SSEIX vs. ARSMX - Expense Ratio Comparison

SSEIX has a 1.09% expense ratio, which is lower than ARSMX's 1.27% expense ratio.

Dividends

SSEIX vs. ARSMX - Dividend Comparison

SSEIX's dividend yield for the trailing twelve months is around 6.43%, while ARSMX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ARSMX AMG River Road Small-Mid Cap Value Fund	0.00%	0.00%	9.27%	3.89%	4.85%	5.86%	0.00%	3.60%	8.60%	15.66%	8.03%	17.82%
SSEIX SouthernSun U.S. Equity	6.43%	7.24%	12.10%	12.31%	19.39%	14.36%	0.62%	1.15%	7.94%	0.33%	0.38%	5.00%

Frequently Asked Questions

Can I hold both SSEIX and ARSMX in my portfolio?

SSEIX and ARSMX have a correlation of 0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SSEIX or ARSMX?

SSEIX has higher volatility (5.92%) compared to ARSMX (2.95%). In terms of maximum drawdown, SSEIX dropped -48.45% vs ARSMX's -51.75%.

Which has better risk-adjusted returns?

SSEIX currently has the higher Sharpe Ratio (1.10 vs 0.13), 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.