VMFVX vs. NAMAX

Last updated Aug 1, 2026

VMFVX (Vanguard S&P Mid-Cap 400 Value Index Fund Institutional Shares) and NAMAX (Columbia Select Mid Cap Value Fund) are both Mid Cap Value Equities funds. Over the past 10 years, VMFVX returned 10.61%/yr vs 11.45%/yr for NAMAX. Their correlation of 0.95 means they have usually moved in the same direction. VMFVX charges 0.08%/yr vs 0.88%/yr for NAMAX.

Performance

VMFVX vs. NAMAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard S&P Mid-Cap 400 Value Index Fund Institutional Shares (VMFVX) 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, VMFVX achieves a 13.52% return, which is significantly lower than NAMAX's 25.51% return. Over the past 10 years, VMFVX has underperformed NAMAX with an annualized return of 10.61%, while NAMAX has yielded a comparatively higher 11.45% annualized return.

VMFVX

• 1D: 0.11%
• 1M: 1.00%
• 6M: 9.03%
• YTD: 13.52%
• 1Y: 23.10%
• 3Y*: 12.01%
• 5Y*: 9.25%
• 10Y*: 10.61%
• ALL TIME*: 10.87%

NAMAX

• 1D: 0.00%
• 1M: 1.47%
• 6M: 19.86%
• YTD: 25.51%
• 1Y: 37.74%
• 3Y*: 18.16%
• 5Y*: 12.37%
• 10Y*: 11.45%
• ALL TIME*: 10.10%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
NAMAX Columbia Select Mid Cap Value Fund	$0.00	$0.00	$0.00
VMFVX Vanguard S&P Mid-Cap 400 Value Index Fund Institutional Shares	$0.00	$0.00	$0.00

VMFVX vs. NAMAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VMFVX Vanguard S&P Mid-Cap 400 Value Index Fund Institutional Shares	13.52%	7.57%	10.59%	16.49%	-7.03%	30.54%	3.68%	26.18%	-11.90%	12.27%
NAMAX Columbia Select Mid Cap Value Fund	25.51%	13.77%	13.14%	9.65%	-9.33%	32.28%	6.90%	31.56%	-18.46%	13.71%

Correlation

The correlation between VMFVX and NAMAX is 0.90, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.90
Correlation (3Y) Balances recent behavior with more history.	0.93
Correlation (5Y) Shows whether the relationship held over a longer period.	0.94
Correlation (10Y) Provides a long-term view across more market conditions.	0.94
Correlation (All Time) Calculated using the full available price history since Jan 3, 2011	0.95

The correlation between VMFVX and NAMAX has been stable across timeframes, ranging from 0.90 to 0.95 - a consistent structural relationship.

Return for Risk

VMFVX vs. NAMAX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

VMFVX

VMFVX Risk / Return Rank: 54
VMFVX Sharpe Ratio Rank: 54
VMFVX Sortino Ratio Rank: 59
VMFVX Omega Ratio Rank: 50
VMFVX Calmar Ratio Rank: 56
VMFVX Martin Ratio Rank: 51

NAMAX

NAMAX Risk / Return Rank: 92
NAMAX Sharpe Ratio Rank: 94
NAMAX Sortino Ratio Rank: 91
NAMAX Omega Ratio Rank: 86
NAMAX Calmar Ratio Rank: 95
NAMAX Martin Ratio Rank: 96

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

VMFVX vs. NAMAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard S&P Mid-Cap 400 Value Index Fund Institutional Shares (VMFVX) 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.

	VMFVX	NAMAX	Difference
Sharpe ratio: Return per unit of total volatility	1.35	2.49	-1.13
Sortino ratio: Return per unit of downside risk	2.07	3.51	-1.45
Omega ratio: Gain probability vs. loss probability	1.24	1.43	-0.19
Calmar ratio: Return relative to maximum drawdown	1.92	4.14	-2.22
Martin ratio: Return relative to average drawdown	6.84	16.48	-9.65

VMFVX vs. NAMAX - Sharpe Ratio Comparison

The current VMFVX Sharpe Ratio is 1.35, which is lower than the NAMAX Sharpe Ratio of 2.49. The chart below compares the historical Sharpe Ratios of VMFVX 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

VMFVX vs. NAMAX - Drawdown Comparison

The maximum VMFVX drawdown since its inception was -45.79%, smaller than the maximum NAMAX drawdown of -60.44%. Use the drawdown chart below to compare losses from any high point for VMFVX and NAMAX.

Drawdown Indicators

	VMFVX	NAMAX	Difference
Max Drawdown Largest peak-to-trough decline	-45.79%	-60.44%	+14.65%
Max Drawdown (1Y) Largest decline over 1 year	-10.52%	-8.49%	-2.03%
Max Drawdown (3Y) Largest decline over 3 years	-22.46%	-20.90%	-1.56%
Max Drawdown (5Y) Largest decline over 5 years	-22.46%	-20.90%	-1.56%
Max Drawdown (10Y) Largest decline over 10 years	-45.79%	-43.24%	-2.55%
Current Drawdown Current decline from peak	-1.01%	-1.21%	+0.20%
Average Drawdown Average peak-to-trough decline	-5.43%	-8.45%	+3.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.96%	2.14%	+0.82%

Volatility

VMFVX vs. NAMAX - Volatility Comparison

Vanguard S&P Mid-Cap 400 Value Index Fund Institutional Shares (VMFVX) has a higher volatility of 3.41% compared to Columbia Select Mid Cap Value Fund (NAMAX) at 2.90%. This indicates that VMFVX's price experiences larger fluctuations and is considered to be riskier than NAMAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VMFVX	NAMAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.41%	2.90%	+0.51%
Volatility (6M) Calculated over the trailing 6-month period	10.33%	10.79%	-0.46%
Volatility (1Y) Calculated over the trailing 1-year period	14.96%	14.17%	+0.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.27%	17.97%	+1.30%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.81%	20.00%	+1.81%

VMFVX vs. NAMAX - Expense Ratio Comparison

VMFVX has a 0.08% expense ratio, which is lower than NAMAX's 0.88% expense ratio.

Dividends

VMFVX vs. NAMAX - Dividend Comparison

VMFVX's dividend yield for the trailing twelve months is around 1.66%, less than NAMAX's 5.94% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NAMAX Columbia Select Mid Cap Value Fund	5.94%	6.71%	7.07%	0.74%	6.39%	8.99%	3.22%	3.38%	27.38%	21.08%	8.07%	17.05%
VMFVX Vanguard S&P Mid-Cap 400 Value Index Fund Institutional Shares	1.66%	1.88%	1.81%	1.58%	2.04%	1.81%	2.48%	1.94%	2.01%	1.56%	1.42%	1.73%

Frequently Asked Questions

Can I hold both VMFVX and NAMAX in my portfolio?

VMFVX and NAMAX have a correlation of 0.90, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VMFVX or NAMAX?

VMFVX has higher volatility (3.41%) compared to NAMAX (2.90%). In terms of maximum drawdown, VMFVX dropped -45.79% vs NAMAX's -60.44%.

Which has better risk-adjusted returns?

NAMAX currently has the higher Sharpe Ratio (2.49 vs 1.35), 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.