RWGIX vs. VMGAX

Last updated Aug 4, 2026

RWGIX (Wedgewood Fund) and VMGAX (Vanguard Mega Cap Growth Index Fund Institutional Shares) are both Large Cap Growth Equities funds. Over the past 10 years, RWGIX returned 25.06%/yr vs 18.27%/yr for VMGAX. Their correlation of 0.90 means they have usually moved in the same direction. RWGIX charges 0.95%/yr vs 0.05%/yr for VMGAX.

Performance

RWGIX vs. VMGAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Wedgewood Fund (RWGIX) and Vanguard Mega Cap Growth Index Fund Institutional Shares (VMGAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RWGIX achieves a 4.48% return, which is significantly lower than VMGAX's 4.77% return. Over the past 10 years, RWGIX has outperformed VMGAX with an annualized return of 25.06%, while VMGAX has yielded a comparatively lower 18.27% annualized return.

RWGIX

• 1D: 1.58%
• 1M: -0.19%
• 6M: 2.19%
• YTD: 4.48%
• 1Y: 7.77%
• 3Y*: 14.27%
• 5Y*: 30.52%
• 10Y*: 25.06%
• ALL TIME*: 19.45%

VMGAX

• 1D: 1.14%
• 1M: -0.93%
• 6M: 6.38%
• YTD: 4.77%
• 1Y: 16.42%
• 3Y*: 21.81%
• 5Y*: 13.07%
• 10Y*: 18.27%
• ALL TIME*: 13.45%

*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)
RWGIX Wedgewood Fund	$0.00	$0.00	$0.00
VMGAX Vanguard Mega Cap Growth Index Fund Institutional Shares	$0.00	$0.00	$0.00

RWGIX vs. VMGAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RWGIX Wedgewood Fund	4.48%	4.33%	29.94%	29.09%	-26.13%	242.06%	31.48%	32.67%	-6.36%	20.04%
VMGAX Vanguard Mega Cap Growth Index Fund Institutional Shares	4.77%	20.73%	32.98%	51.57%	-33.55%	28.50%	41.02%	37.54%	-2.86%	29.49%

Correlation

The correlation between RWGIX and VMGAX is 0.70, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.70
Correlation (3Y) Balances recent behavior with more history.	0.80
Correlation (5Y) Shows whether the relationship held over a longer period.	0.87
Correlation (10Y) Provides a long-term view across more market conditions.	0.89
Correlation (All Time) Calculated using the full available price history since Jan 3, 2011	0.90

The correlation between RWGIX and VMGAX shifts across timeframes, from 0.70 (1 year) to 0.90 (all time), reflecting how their relationship changes across market environments.

Return for Risk

RWGIX vs. VMGAX — Risk / Return Rank

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

RWGIX

RWGIX Risk / Return Rank: 10
RWGIX Sharpe Ratio Rank: 10
RWGIX Sortino Ratio Rank: 10
RWGIX Omega Ratio Rank: 10
RWGIX Calmar Ratio Rank: 10
RWGIX Martin Ratio Rank: 12

VMGAX

VMGAX Risk / Return Rank: 18
VMGAX Sharpe Ratio Rank: 19
VMGAX Sortino Ratio Rank: 19
VMGAX Omega Ratio Rank: 18
VMGAX Calmar Ratio Rank: 15
VMGAX Martin Ratio Rank: 17

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.

RWGIX vs. VMGAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Wedgewood Fund (RWGIX) and Vanguard Mega Cap Growth Index Fund Institutional Shares (VMGAX). 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.

	RWGIX	VMGAX	Difference
Sharpe ratio: Return per unit of total volatility	0.45	0.76	-0.32
Sortino ratio: Return per unit of downside risk	0.72	1.16	-0.44
Omega ratio: Gain probability vs. loss probability	1.09	1.14	-0.05
Calmar ratio: Return relative to maximum drawdown	0.51	0.83	-0.32
Martin ratio: Return relative to average drawdown	1.78	2.60	-0.83

RWGIX vs. VMGAX - Sharpe Ratio Comparison

The current RWGIX Sharpe Ratio is 0.45, which is lower than the VMGAX Sharpe Ratio of 0.76. The chart below compares the historical Sharpe Ratios of RWGIX and VMGAX, 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

RWGIX vs. VMGAX - Drawdown Comparison

The maximum RWGIX drawdown since its inception was -47.12%, roughly equal to the maximum VMGAX drawdown of -47.97%. Use the drawdown chart below to compare losses from any high point for RWGIX and VMGAX.

Drawdown Indicators

	RWGIX	VMGAX	Difference
Max Drawdown Largest peak-to-trough decline	-47.12%	-47.97%	+0.85%
Max Drawdown (1Y) Largest decline over 1 year	-12.05%	-16.78%	+4.73%
Max Drawdown (3Y) Largest decline over 3 years	-19.16%	-23.45%	+4.29%
Max Drawdown (5Y) Largest decline over 5 years	-30.62%	-36.03%	+5.41%
Max Drawdown (10Y) Largest decline over 10 years	-47.12%	-36.03%	-11.09%
Current Drawdown Current decline from peak	-0.97%	-6.12%	+5.15%
Average Drawdown Average peak-to-trough decline	-6.65%	-7.42%	+0.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.48%	5.35%	-1.87%

Volatility

RWGIX vs. VMGAX - Volatility Comparison

The current volatility for Wedgewood Fund (RWGIX) is 3.95%, while Vanguard Mega Cap Growth Index Fund Institutional Shares (VMGAX) has a volatility of 5.83%. This indicates that RWGIX experiences smaller price fluctuations and is considered to be less risky than VMGAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RWGIX	VMGAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.95%	5.83%	-1.88%
Volatility (6M) Calculated over the trailing 6-month period	11.08%	14.69%	-3.61%
Volatility (1Y) Calculated over the trailing 1-year period	13.90%	18.26%	-4.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	76.17%	23.00%	+53.17%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	57.94%	22.02%	+35.92%

RWGIX vs. VMGAX - Expense Ratio Comparison

RWGIX has a 0.95% expense ratio, which is higher than VMGAX's 0.05% expense ratio.

Dividends

RWGIX vs. VMGAX - Dividend Comparison

RWGIX's dividend yield for the trailing twelve months is around 11.00%, more than VMGAX's 0.35% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RWGIX Wedgewood Fund	11.00%	11.50%	15.61%	2.14%	15.90%	71.14%	88.03%	39.95%	124.71%	16.61%	0.17%	4.63%
VMGAX Vanguard Mega Cap Growth Index Fund Institutional Shares	0.35%	0.36%	0.44%	0.51%	0.71%	0.42%	0.65%	0.86%	1.13%	1.23%	1.53%	1.44%

Frequently Asked Questions

Can I hold both RWGIX and VMGAX in my portfolio?

RWGIX and VMGAX have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RWGIX or VMGAX?

VMGAX has higher volatility (5.83%) compared to RWGIX (3.95%). In terms of maximum drawdown, RWGIX dropped -47.12% vs VMGAX's -47.97%.

Which has better risk-adjusted returns?

VMGAX currently has the higher Sharpe Ratio (0.76 vs 0.45), 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.