VLCAX vs. RMFGX

Last updated Jun 3, 2026

VLCAX (Vanguard Large-Cap Index Fund Admiral Shares) and RMFGX (American Mutual Fund Class R-6) are both mutual funds - VLCAX is a Large Cap Blend Equities fund managed by Vanguard, while RMFGX is a Large Cap Value Equities fund actively managed by American Funds. Over the past 10 years, VLCAX returned 15.63%/yr vs 11.45%/yr for RMFGX. Their correlation of 0.93 suggests significant overlap in exposure. VLCAX charges 0.05%/yr vs 0.27%/yr for RMFGX.

Performance

VLCAX vs. RMFGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Large-Cap Index Fund Admiral Shares (VLCAX) and American Mutual Fund Class R-6 (RMFGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VLCAX achieves a 11.30% return, which is significantly higher than RMFGX's 6.13% return. Over the past 10 years, VLCAX has outperformed RMFGX with an annualized return of 15.63%, while RMFGX has yielded a comparatively lower 11.45% annualized return.

VLCAX

• 1D: 0.31%
• 1M: 5.40%
• YTD: 11.30%
• 6M: 11.54%
• 1Y: 29.20%
• 3Y*: 22.89%
• 5Y*: 13.77%
• 10Y*: 15.63%

RMFGX

• 1D: -0.51%
• 1M: 1.78%
• YTD: 6.13%
• 6M: 6.90%
• 1Y: 17.42%
• 3Y*: 15.62%
• 5Y*: 10.54%
• 10Y*: 11.45%

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

VLCAX vs. RMFGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VLCAX Vanguard Large-Cap Index Fund Admiral Shares	11.30%	18.09%	25.10%	27.26%	-19.69%	27.02%	21.03%	31.39%	-4.49%	22.02%
RMFGX American Mutual Fund Class R-6	6.13%	16.43%	15.28%	9.78%	-4.19%	25.28%	5.15%	21.92%	-2.00%	17.86%

Correlation

The correlation between VLCAX and RMFGX is 0.80, 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	0.80
Correlation (3Y) Calculated over the trailing 3-year period	0.83
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (10Y) Calculated over the trailing 10-year period	0.89
Correlation (All Time) Calculated using the full available price history since Jan 5, 2010	0.93

The correlation between VLCAX and RMFGX shifts across timeframes, from 0.80 (1 year) to 0.93 (all time), reflecting how their relationship changes across market environments.

Return for Risk

VLCAX vs. RMFGX — Risk / Return Rank

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

VLCAX

VLCAX Risk / Return Rank: 71
VLCAX Sharpe Ratio Rank: 75
VLCAX Sortino Ratio Rank: 66
VLCAX Omega Ratio Rank: 66
VLCAX Calmar Ratio Rank: 70
VLCAX Martin Ratio Rank: 79

RMFGX

RMFGX Risk / Return Rank: 41
RMFGX Sharpe Ratio Rank: 42
RMFGX Sortino Ratio Rank: 40
RMFGX Omega Ratio Rank: 41
RMFGX Calmar Ratio Rank: 36
RMFGX Martin Ratio Rank: 44

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.

VLCAX vs. RMFGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Large-Cap Index Fund Admiral Shares (VLCAX) and American Mutual Fund Class R-6 (RMFGX). 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.

	VLCAX	RMFGX	Difference
Sharpe ratio Return per unit of total volatility	2.51	1.89	+0.62
Sortino ratio Return per unit of downside risk	3.40	2.65	+0.76
Omega ratio Gain probability vs. loss probability	1.45	1.34	+0.11
Calmar ratio Return relative to maximum drawdown	3.25	2.31	+0.94
Martin ratio Return relative to average drawdown	14.95	9.30	+5.65
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VLCAX vs. RMFGX - Sharpe Ratio Comparison

The current VLCAX Sharpe Ratio is 2.51, which is higher than the RMFGX Sharpe Ratio of 1.89. The chart below compares the historical Sharpe Ratios of VLCAX and RMFGX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	VLCAX	RMFGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.51	1.89	+0.62
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.81	0.85	-0.04
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.86	0.81	+0.05
Sharpe Ratio (All Time) Calculated using the full available price history	0.58	0.83	-0.24

Drawdowns

VLCAX vs. RMFGX - Drawdown Comparison

The maximum VLCAX drawdown since its inception was -54.76%, which is greater than RMFGX's maximum drawdown of -29.79%. Use the drawdown chart below to compare losses from any high point for VLCAX and RMFGX.

Drawdown Indicators

	VLCAX	RMFGX	Difference
Max Drawdown Largest peak-to-trough decline	-54.76%	-29.79%	-24.97%
Max Drawdown (1Y) Largest decline over 1 year	-9.19%	-7.89%	-1.30%
Max Drawdown (3Y) Largest decline over 3 years	-19.01%	-12.90%	-6.11%
Max Drawdown (5Y) Largest decline over 5 years	-25.65%	-15.17%	-10.48%
Max Drawdown (10Y) Largest decline over 10 years	-33.97%	-29.79%	-4.18%
Current Drawdown Current decline from peak	0.00%	-0.51%	+0.51%
Average Drawdown Average peak-to-trough decline	-6.86%	-2.72%	-4.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.00%	1.96%	+0.04%

Volatility

VLCAX vs. RMFGX - Volatility Comparison

Vanguard Large-Cap Index Fund Admiral Shares (VLCAX) has a higher volatility of 2.80% compared to American Mutual Fund Class R-6 (RMFGX) at 2.29%. This indicates that VLCAX's price experiences larger fluctuations and is considered to be riskier than RMFGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VLCAX	RMFGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.80%	2.29%	+0.51%
Volatility (6M) Calculated over the trailing 6-month period	9.03%	7.34%	+1.69%
Volatility (1Y) Calculated over the trailing 1-year period	11.95%	9.50%	+2.45%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.16%	12.51%	+4.65%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.20%	14.12%	+4.08%

VLCAX vs. RMFGX - Expense Ratio Comparison

VLCAX has a 0.05% expense ratio, which is lower than RMFGX's 0.27% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

VLCAX vs. RMFGX - Dividend Comparison

VLCAX's dividend yield for the trailing twelve months is around 0.96%, less than RMFGX's 7.43% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RMFGX American Mutual Fund Class R-6	7.43%	7.85%	6.59%	4.06%	5.20%	4.88%	2.30%	4.89%	6.75%	6.23%	4.54%	6.84%
VLCAX Vanguard Large-Cap Index Fund Admiral Shares	0.96%	1.08%	1.23%	1.40%	1.66%	1.18%	1.45%	1.80%	2.08%	1.75%	1.98%	1.96%

Frequently Asked Questions

Can I hold both VLCAX and RMFGX in my portfolio?

VLCAX and RMFGX have a correlation of 0.80, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VLCAX or RMFGX?

VLCAX has higher volatility (2.80%) compared to RMFGX (2.29%). In terms of maximum drawdown, VLCAX dropped -54.76% vs RMFGX's -29.79%.

Which has better risk-adjusted returns?

VLCAX currently has the higher Sharpe Ratio (2.51 vs 1.89), 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.