ARSMX vs. AMAEX

Last updated Jun 5, 2026

ARSMX (AMG River Road Small-Mid Cap Value Fund) and AMAEX (American Century Small Cap Dividend Fund) are both Small Cap Value Equities funds. Over the past 3 years, ARSMX returned 8.33%/yr vs 10.96%/yr for AMAEX. Their correlation of 0.90 suggests significant overlap in exposure. ARSMX charges 1.27%/yr vs 1.13%/yr for AMAEX.

Performance

ARSMX vs. AMAEX - Performance Comparison

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

Returns By Period

In the year-to-date period, ARSMX achieves a -0.73% return, which is significantly lower than AMAEX's 17.07% return.

ARSMX

• 1D: -0.11%
• 1M: -1.77%
• YTD: -0.73%
• 6M: -5.59%
• 1Y: 0.64%
• 3Y*: 8.33%
• 5Y*: 3.52%
• 10Y*: 9.25%

AMAEX

• 1D: -0.93%
• 1M: 3.08%
• YTD: 17.07%
• 6M: 16.21%
• 1Y: 23.51%
• 3Y*: 10.96%
• 5Y*: —
• 10Y*: —

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

ARSMX vs. AMAEX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
ARSMX AMG River Road Small-Mid Cap Value Fund	-0.73%	-0.83%	12.42%	14.48%	-3.13%
AMAEX American Century Small Cap Dividend Fund	17.07%	-4.42%	11.05%	8.86%	-2.96%

Correlation

The correlation between ARSMX and AMAEX 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	0.88
Correlation (All Time) Calculated using the full available price history since Apr 29, 2022	0.90

The correlation between ARSMX and AMAEX has been stable across timeframes, ranging from 0.88 to 0.90 - a consistent structural relationship.

Return for Risk

ARSMX vs. AMAEX — Risk / Return Rank

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

ARSMX

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

AMAEX

AMAEX Risk / Return Rank: 26
AMAEX Sharpe Ratio Rank: 24
AMAEX Sortino Ratio Rank: 25
AMAEX Omega Ratio Rank: 23
AMAEX Calmar Ratio Rank: 34
AMAEX Martin Ratio Rank: 23

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.

ARSMX vs. AMAEX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AMG River Road Small-Mid Cap Value Fund (ARSMX) and American Century Small Cap Dividend Fund (AMAEX). 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.

	ARSMX	AMAEX	Difference
Sharpe ratio: Return per unit of total volatility	0.02	1.37	-1.36
Sortino ratio: Return per unit of downside risk	0.12	2.01	-1.89
Omega ratio: Gain probability vs. loss probability	1.01	1.24	-0.23
Calmar ratio: Return relative to maximum drawdown	0.02	2.14	-2.11
Martin ratio: Return relative to average drawdown	0.05	5.50	-5.45
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ARSMX vs. AMAEX - Sharpe Ratio Comparison

The current ARSMX Sharpe Ratio is 0.02, which is lower than the AMAEX Sharpe Ratio of 1.37. The chart below compares the historical Sharpe Ratios of ARSMX and AMAEX, 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

	ARSMX	AMAEX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.02	1.37	-1.36
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.20	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.47	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.35	0.35	0.00

Drawdowns

ARSMX vs. AMAEX - Drawdown Comparison

The maximum ARSMX drawdown since its inception was -51.75%, which is greater than AMAEX's maximum drawdown of -23.97%. Use the drawdown chart below to compare losses from any high point for ARSMX and AMAEX.

Drawdown Indicators

	ARSMX	AMAEX	Difference
Max Drawdown Largest peak-to-trough decline	-51.75%	-23.97%	-27.78%
Max Drawdown (1Y) Largest decline over 1 year	-10.37%	-10.70%	+0.33%
Max Drawdown (3Y) Largest decline over 3 years	-19.34%	-23.97%	+4.63%
Max Drawdown (5Y) Largest decline over 5 years	-19.34%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-42.96%	—	—
Current Drawdown Current decline from peak	-8.18%	-0.93%	-7.25%
Average Drawdown Average peak-to-trough decline	-8.11%	-7.45%	-0.66%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.37%	4.15%	+0.22%

Volatility

ARSMX vs. AMAEX - Volatility Comparison

The current volatility for AMG River Road Small-Mid Cap Value Fund (ARSMX) is 2.68%, while American Century Small Cap Dividend Fund (AMAEX) has a volatility of 3.80%. This indicates that ARSMX experiences smaller price fluctuations and is considered to be less risky than AMAEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ARSMX	AMAEX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.68%	3.80%	-1.12%
Volatility (6M) Calculated over the trailing 6-month period	10.16%	10.90%	-0.74%
Volatility (1Y) Calculated over the trailing 1-year period	14.36%	16.73%	-2.37%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.78%	19.66%	-1.88%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.57%	19.66%	-0.09%

ARSMX vs. AMAEX - Expense Ratio Comparison

ARSMX has a 1.27% expense ratio, which is higher than AMAEX's 1.13% expense ratio.

Dividends

ARSMX vs. AMAEX - Dividend Comparison

ARSMX has not paid dividends to shareholders, while AMAEX's dividend yield for the trailing twelve months is around 1.84%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AMAEX American Century Small Cap Dividend Fund	1.84%	2.57%	1.37%	1.99%	2.56%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
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%

Frequently Asked Questions

Can I hold both ARSMX and AMAEX in my portfolio?

ARSMX and AMAEX 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, ARSMX or AMAEX?

AMAEX has higher volatility (3.80%) compared to ARSMX (2.68%). In terms of maximum drawdown, ARSMX dropped -51.75% vs AMAEX's -23.97%.

Which has better risk-adjusted returns?

AMAEX currently has the higher Sharpe Ratio (1.37 vs 0.01), 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.