NAMAX vs. CIMDX

Last updated Jul 17, 2026

NAMAX (Columbia Select Mid Cap Value Fund) and CIMDX (Clarkston Founders Fund) are both Mid Cap Value Equities funds. Over the past 5 years, NAMAX returned 12.63%/yr vs 3.31%/yr for CIMDX. Their correlation of 0.81 suggests significant overlap in exposure. NAMAX charges 0.88%/yr vs 0.95%/yr for CIMDX.

Performance

NAMAX vs. CIMDX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Columbia Select Mid Cap Value Fund (NAMAX) and Clarkston Founders Fund (CIMDX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NAMAX achieves a 23.83% return, which is significantly higher than CIMDX's 1.81% return.

NAMAX

• 1D: -0.06%
• 1M: 2.14%
• 6M: 17.18%
• YTD: 23.83%
• 1Y: 35.22%
• 3Y*: 18.22%
• 5Y*: 12.63%
• 10Y*: 11.28%

CIMDX

• 1D: 0.60%
• 1M: 6.42%
• 6M: -2.03%
• YTD: 1.81%
• 1Y: 8.27%
• 3Y*: 5.63%
• 5Y*: 3.31%
• 10Y*: —

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

NAMAX vs. CIMDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
NAMAX Columbia Select Mid Cap Value Fund	23.83%	13.77%	13.14%	9.65%	-9.33%	32.28%	6.90%	31.56%	-18.46%	12.25%
CIMDX Clarkston Founders Fund	1.81%	7.35%	5.67%	10.38%	-3.67%	6.23%	23.21%	23.74%	-7.85%	11.25%

Correlation

The correlation between NAMAX and CIMDX is 0.50, 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	0.50
Correlation (3Y) Calculated over the trailing 3-year period	0.69
Correlation (5Y) Calculated over the trailing 5-year period	0.78
Correlation (All Time) Calculated using the full available price history since Feb 1, 2017	0.81

Over the past year, the correlation between NAMAX and CIMDX has dropped to 0.50 - well below their long-term average of 0.81, suggesting their price drivers have been diverging.

Return for Risk

NAMAX vs. CIMDX — Risk / Return Rank

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

NAMAX

NAMAX Risk / Return Rank: 90
NAMAX Sharpe Ratio Rank: 91
NAMAX Sortino Ratio Rank: 88
NAMAX Omega Ratio Rank: 84
NAMAX Calmar Ratio Rank: 94
NAMAX Martin Ratio Rank: 95

CIMDX

CIMDX Risk / Return Rank: 9
CIMDX Sharpe Ratio Rank: 8
CIMDX Sortino Ratio Rank: 9
CIMDX Omega Ratio Rank: 8
CIMDX Calmar Ratio Rank: 10
CIMDX Martin Ratio Rank: 8

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.

NAMAX vs. CIMDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Columbia Select Mid Cap Value Fund (NAMAX) and Clarkston Founders Fund (CIMDX). 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.

	NAMAX	CIMDX	Difference
Sharpe ratio: Return per unit of total volatility	2.55	0.50	+2.05
Sortino ratio: Return per unit of downside risk	3.60	0.85	+2.74
Omega ratio: Gain probability vs. loss probability	1.44	1.10	+0.34
Calmar ratio: Return relative to maximum drawdown	4.26	0.75	+3.51
Martin ratio: Return relative to average drawdown	16.62	1.73	+14.90

NAMAX vs. CIMDX - Sharpe Ratio Comparison

The current NAMAX Sharpe Ratio is 2.55, which is higher than the CIMDX Sharpe Ratio of 0.50. The chart below compares the historical Sharpe Ratios of NAMAX and CIMDX, 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

NAMAX vs. CIMDX - Drawdown Comparison

The maximum NAMAX drawdown since its inception was -60.44%, which is greater than CIMDX's maximum drawdown of -31.86%. Use the drawdown chart below to compare losses from any high point for NAMAX and CIMDX.

Drawdown Indicators

	NAMAX	CIMDX	Difference
Max Drawdown Largest peak-to-trough decline	-60.44%	-31.86%	-28.58%
Max Drawdown (1Y) Largest decline over 1 year	-8.49%	-11.83%	+3.34%
Max Drawdown (3Y) Largest decline over 3 years	-20.90%	-14.82%	-6.08%
Max Drawdown (5Y) Largest decline over 5 years	-20.90%	-15.58%	-5.32%
Max Drawdown (10Y) Largest decline over 10 years	-43.24%	—	—
Current Drawdown Current decline from peak	-0.23%	-2.03%	+1.80%
Average Drawdown Average peak-to-trough decline	-8.47%	-5.91%	-2.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.17%	5.12%	-2.95%

Volatility

NAMAX vs. CIMDX - Volatility Comparison

The current volatility for Columbia Select Mid Cap Value Fund (NAMAX) is 3.62%, while Clarkston Founders Fund (CIMDX) has a volatility of 8.27%. This indicates that NAMAX experiences smaller price fluctuations and is considered to be less risky than CIMDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NAMAX	CIMDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.62%	8.27%	-4.65%
Volatility (6M) Calculated over the trailing 6-month period	10.85%	14.32%	-3.47%
Volatility (1Y) Calculated over the trailing 1-year period	14.30%	17.82%	-3.52%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.07%	16.35%	+1.72%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.99%	17.63%	+2.36%

NAMAX vs. CIMDX - Expense Ratio Comparison

NAMAX has a 0.88% expense ratio, which is lower than CIMDX's 0.95% expense ratio.

Dividends

NAMAX vs. CIMDX - Dividend Comparison

NAMAX's dividend yield for the trailing twelve months is around 6.02%, more than CIMDX's 3.19% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CIMDX Clarkston Founders Fund	3.19%	3.24%	0.45%	1.62%	6.38%	0.44%	0.91%	3.32%	2.27%	0.41%	0.00%	0.00%
NAMAX Columbia Select Mid Cap Value Fund	6.02%	6.71%	7.07%	0.74%	6.39%	8.99%	3.22%	3.38%	27.38%	21.08%	8.07%	17.05%

Frequently Asked Questions

Can I hold both NAMAX and CIMDX in my portfolio?

NAMAX and CIMDX have a correlation of 0.50, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, NAMAX or CIMDX?

CIMDX has higher volatility (8.27%) compared to NAMAX (3.62%). In terms of maximum drawdown, NAMAX dropped -60.44% vs CIMDX's -31.86%.

Which has better risk-adjusted returns?

NAMAX currently has the higher Sharpe Ratio (2.55 vs 0.50), 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.