AMDVX vs. NAMAX

Last updated Jun 24, 2026

AMDVX (American Century Mid Cap Value R6) and NAMAX (Columbia Select Mid Cap Value Fund) are both Mid Cap Value Equities funds. Over the past 10 years, AMDVX returned 9.70%/yr vs 11.78%/yr for NAMAX. Their correlation of 0.93 suggests significant overlap in exposure. AMDVX charges 0.63%/yr vs 0.88%/yr for NAMAX.

Performance

AMDVX vs. NAMAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Mid Cap Value R6 (AMDVX) and Columbia Select Mid Cap Value Fund (NAMAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AMDVX achieves a 9.05% return, which is significantly lower than NAMAX's 22.50% return. Over the past 10 years, AMDVX has underperformed NAMAX with an annualized return of 9.70%, while NAMAX has yielded a comparatively higher 11.78% annualized return.

AMDVX

• 1D: 0.06%
• 1M: 1.03%
• YTD: 9.05%
• 6M: 8.39%
• 1Y: 16.84%
• 3Y*: 11.33%
• 5Y*: 8.19%
• 10Y*: 9.70%

NAMAX

• 1D: 1.10%
• 1M: 5.16%
• YTD: 22.50%
• 6M: 21.50%
• 1Y: 37.60%
• 3Y*: 19.89%
• 5Y*: 11.84%
• 10Y*: 11.78%

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

AMDVX vs. NAMAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AMDVX American Century Mid Cap Value R6	9.05%	9.21%	8.87%	6.54%	-0.35%	23.83%	1.99%	29.32%	-12.18%	11.95%
NAMAX Columbia Select Mid Cap Value Fund	22.50%	13.77%	13.14%	9.65%	-9.33%	32.28%	6.90%	31.56%	-18.46%	13.71%

Correlation

The correlation between AMDVX and NAMAX is 0.86, 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	0.86
Correlation (3Y) Calculated over the trailing 3-year period	0.88
Correlation (5Y) Calculated over the trailing 5-year period	0.91
Correlation (10Y) Calculated over the trailing 10-year period	0.92
Correlation (All Time) Calculated using the full available price history since Jan 2, 2014	0.93

The correlation between AMDVX and NAMAX has been stable across timeframes, ranging from 0.86 to 0.93 - a consistent structural relationship.

Return for Risk

AMDVX vs. NAMAX — Risk / Return Rank

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

AMDVX

AMDVX Risk / Return Rank: 33
AMDVX Sharpe Ratio Rank: 32
AMDVX Sortino Ratio Rank: 35
AMDVX Omega Ratio Rank: 30
AMDVX Calmar Ratio Rank: 36
AMDVX Martin Ratio Rank: 33

NAMAX

NAMAX Risk / Return Rank: 88
NAMAX Sharpe Ratio Rank: 90
NAMAX Sortino Ratio Rank: 86
NAMAX Omega Ratio Rank: 79
NAMAX Calmar Ratio Rank: 92
NAMAX Martin Ratio Rank: 93

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.

AMDVX vs. NAMAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Mid Cap Value R6 (AMDVX) and Columbia Select Mid Cap Value Fund (NAMAX). 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.

	AMDVX	NAMAX	Difference
Sharpe ratio: Return per unit of total volatility	1.51	2.74	-1.23
Sortino ratio: Return per unit of downside risk	2.30	3.82	-1.52
Omega ratio: Gain probability vs. loss probability	1.27	1.47	-0.21
Calmar ratio: Return relative to maximum drawdown	2.14	4.62	-2.48
Martin ratio: Return relative to average drawdown	6.94	18.02	-11.07

AMDVX vs. NAMAX - Sharpe Ratio Comparison

The current AMDVX Sharpe Ratio is 1.51, which is lower than the NAMAX Sharpe Ratio of 2.74. The chart below compares the historical Sharpe Ratios of AMDVX and NAMAX, 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

AMDVX vs. NAMAX - Drawdown Comparison

The maximum AMDVX drawdown since its inception was -39.21%, smaller than the maximum NAMAX drawdown of -60.44%. Use the drawdown chart below to compare losses from any high point for AMDVX and NAMAX.

Drawdown Indicators

	AMDVX	NAMAX	Difference
Max Drawdown Largest peak-to-trough decline	-39.21%	-60.44%	+21.23%
Max Drawdown (1Y) Largest decline over 1 year	-8.47%	-8.49%	+0.02%
Max Drawdown (3Y) Largest decline over 3 years	-14.50%	-20.90%	+6.40%
Max Drawdown (5Y) Largest decline over 5 years	-16.96%	-20.90%	+3.94%
Max Drawdown (10Y) Largest decline over 10 years	-39.21%	-43.24%	+4.03%
Current Drawdown Current decline from peak	-1.66%	0.00%	-1.66%
Average Drawdown Average peak-to-trough decline	-3.97%	-8.49%	+4.52%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.60%	2.17%	+0.43%

Volatility

AMDVX vs. NAMAX - Volatility Comparison

The current volatility for American Century Mid Cap Value R6 (AMDVX) is 3.24%, while Columbia Select Mid Cap Value Fund (NAMAX) has a volatility of 4.58%. This indicates that AMDVX experiences smaller price fluctuations and is considered to be less risky than NAMAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AMDVX	NAMAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.24%	4.58%	-1.34%
Volatility (6M) Calculated over the trailing 6-month period	8.65%	10.84%	-2.19%
Volatility (1Y) Calculated over the trailing 1-year period	12.01%	14.31%	-2.30%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.62%	18.12%	-3.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.48%	20.09%	-2.61%

AMDVX vs. NAMAX - Expense Ratio Comparison

AMDVX has a 0.63% expense ratio, which is lower than NAMAX's 0.88% expense ratio.

Dividends

AMDVX vs. NAMAX - Dividend Comparison

AMDVX's dividend yield for the trailing twelve months is around 14.40%, more than NAMAX's 6.08% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AMDVX American Century Mid Cap Value R6	14.40%	14.83%	9.13%	5.59%	15.97%	16.32%	2.14%	1.79%	15.04%	9.85%	4.38%	11.43%
NAMAX Columbia Select Mid Cap Value Fund	6.08%	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 AMDVX and NAMAX in my portfolio?

AMDVX and NAMAX have a correlation of 0.86, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AMDVX or NAMAX?

NAMAX has higher volatility (4.58%) compared to AMDVX (3.24%). In terms of maximum drawdown, AMDVX dropped -39.21% vs NAMAX's -60.44%.

Which has better risk-adjusted returns?

NAMAX currently has the higher Sharpe Ratio (2.74 vs 1.51), 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.