MGPIX vs. VMFGX

Last updated Jun 24, 2026

MGPIX (ProFunds Mid Cap Growth Fund) and VMFGX (Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares) are both Mid Cap Growth Equities funds. Over the past 10 years, MGPIX returned 7.80%/yr vs 12.18%/yr for VMFGX. With a 0.99 correlation, they move nearly in lockstep. MGPIX charges 1.69%/yr vs 0.08%/yr for VMFGX.

Performance

MGPIX vs. VMFGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProFunds Mid Cap Growth Fund (MGPIX) and Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares (VMFGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with MGPIX having a 19.55% return and VMFGX slightly higher at 20.49%. Over the past 10 years, MGPIX has underperformed VMFGX with an annualized return of 7.80%, while VMFGX has yielded a comparatively higher 12.18% annualized return.

MGPIX

• 1D: 0.61%
• 1M: 4.02%
• YTD: 19.55%
• 6M: 16.93%
• 1Y: 29.59%
• 3Y*: 16.38%
• 5Y*: 2.35%
• 10Y*: 7.80%

VMFGX

• 1D: 0.63%
• 1M: 4.19%
• YTD: 20.49%
• 6M: 17.90%
• 1Y: 31.74%
• 3Y*: 18.43%
• 5Y*: 8.89%
• 10Y*: 12.18%

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

MGPIX vs. VMFGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MGPIX ProFunds Mid Cap Growth Fund	19.55%	5.56%	13.77%	15.40%	-20.47%	-6.46%	20.28%	24.09%	-12.06%	18.08%
VMFGX Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares	20.49%	7.43%	15.86%	17.42%	-18.99%	18.83%	22.61%	26.20%	-10.39%	19.87%

Correlation

The correlation between MGPIX and VMFGX is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	1.00
Correlation (3Y) Calculated over the trailing 3-year period	0.99
Correlation (5Y) Calculated over the trailing 5-year period	0.99
Correlation (10Y) Calculated over the trailing 10-year period	0.99
Correlation (All Time) Calculated using the full available price history since Jan 3, 2012	0.99

The correlation between MGPIX and VMFGX has been stable across timeframes, ranging from 0.99 to 1.00 - a consistent structural relationship.

Return for Risk

MGPIX vs. VMFGX — Risk / Return Rank

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

MGPIX

MGPIX Risk / Return Rank: 52
MGPIX Sharpe Ratio Rank: 43
MGPIX Sortino Ratio Rank: 42
MGPIX Omega Ratio Rank: 39
MGPIX Calmar Ratio Rank: 71
MGPIX Martin Ratio Rank: 66

VMFGX

VMFGX Risk / Return Rank: 58
VMFGX Sharpe Ratio Rank: 48
VMFGX Sortino Ratio Rank: 47
VMFGX Omega Ratio Rank: 44
VMFGX Calmar Ratio Rank: 77
VMFGX Martin Ratio Rank: 74

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.

MGPIX vs. VMFGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProFunds Mid Cap Growth Fund (MGPIX) and Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares (VMFGX). 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.

	MGPIX	VMFGX	Difference
Sharpe ratio: Return per unit of total volatility	1.77	1.89	-0.12
Sortino ratio: Return per unit of downside risk	2.52	2.68	-0.15
Omega ratio: Gain probability vs. loss probability	1.31	1.33	-0.02
Calmar ratio: Return relative to maximum drawdown	3.09	3.32	-0.23
Martin ratio: Return relative to average drawdown	12.09	13.13	-1.04

MGPIX vs. VMFGX - Sharpe Ratio Comparison

The current MGPIX Sharpe Ratio is 1.77, which is comparable to the VMFGX Sharpe Ratio of 1.89. The chart below compares the historical Sharpe Ratios of MGPIX and VMFGX, 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

MGPIX vs. VMFGX - Drawdown Comparison

The maximum MGPIX drawdown since its inception was -54.61%, which is greater than VMFGX's maximum drawdown of -39.15%. Use the drawdown chart below to compare losses from any high point for MGPIX and VMFGX.

Drawdown Indicators

	MGPIX	VMFGX	Difference
Max Drawdown Largest peak-to-trough decline	-54.61%	-39.15%	-15.46%
Max Drawdown (1Y) Largest decline over 1 year	-9.92%	-9.91%	-0.01%
Max Drawdown (3Y) Largest decline over 3 years	-25.86%	-25.45%	-0.41%
Max Drawdown (5Y) Largest decline over 5 years	-43.84%	-29.25%	-14.59%
Max Drawdown (10Y) Largest decline over 10 years	-43.84%	-39.15%	-4.69%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-11.10%	-5.69%	-5.41%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.53%	2.50%	+0.03%

Volatility

MGPIX vs. VMFGX - Volatility Comparison

ProFunds Mid Cap Growth Fund (MGPIX) and Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares (VMFGX) have volatilities of 5.55% and 5.57%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MGPIX	VMFGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.55%	5.57%	-0.02%
Volatility (6M) Calculated over the trailing 6-month period	13.62%	13.68%	-0.06%
Volatility (1Y) Calculated over the trailing 1-year period	17.36%	17.42%	-0.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.32%	20.69%	+1.63%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.29%	21.10%	+0.19%

MGPIX vs. VMFGX - Expense Ratio Comparison

MGPIX has a 1.69% expense ratio, which is higher than VMFGX's 0.08% expense ratio.

Dividends

MGPIX vs. VMFGX - Dividend Comparison

MGPIX's dividend yield for the trailing twelve months is around 2.86%, more than VMFGX's 0.58% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MGPIX ProFunds Mid Cap Growth Fund	2.86%	3.42%	0.91%	0.00%	3.26%	1.47%	2.69%	0.00%	0.00%	0.00%	0.00%	0.00%
VMFGX Vanguard S&P Mid-Cap 400 Growth Index Fund Institutional Shares	0.58%	0.70%	0.84%	1.21%	1.12%	0.53%	0.79%	1.22%	1.18%	0.93%	1.14%	1.14%

Frequently Asked Questions

Can I hold both MGPIX and VMFGX in my portfolio?

With a correlation of 1.00, MGPIX and VMFGX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, MGPIX or VMFGX?

VMFGX has higher volatility (5.57%) compared to MGPIX (5.55%). In terms of maximum drawdown, MGPIX dropped -54.61% vs VMFGX's -39.15%.

Which has better risk-adjusted returns?

VMFGX currently has the higher Sharpe Ratio (1.89 vs 1.77), 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.