VTMNX vs. RERGX

Last updated Jun 4, 2026

VTMNX (Vanguard Developed Markets Index Fund Institutional Shares) and RERGX (American Funds EuroPacific Growth Fund Class R-6) are both Foreign Large Cap Equities funds. Over the past 10 years, VTMNX returned 10.26%/yr vs 9.21%/yr for RERGX. Their correlation of 0.93 suggests significant overlap in exposure. VTMNX charges 0.05%/yr vs 0.46%/yr for RERGX.

Performance

VTMNX vs. RERGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Developed Markets Index Fund Institutional Shares (VTMNX) and American Funds EuroPacific Growth Fund Class R-6 (RERGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VTMNX achieves a 15.93% return, which is significantly higher than RERGX's 12.33% return. Over the past 10 years, VTMNX has outperformed RERGX with an annualized return of 10.26%, while RERGX has yielded a comparatively lower 9.21% annualized return.

VTMNX

• 1D: 0.26%
• 1M: 6.02%
• YTD: 15.93%
• 6M: 19.14%
• 1Y: 33.56%
• 3Y*: 20.22%
• 5Y*: 9.97%
• 10Y*: 10.26%

RERGX

• 1D: 0.55%
• 1M: 6.76%
• YTD: 12.33%
• 6M: 15.06%
• 1Y: 29.41%
• 3Y*: 16.36%
• 5Y*: 5.37%
• 10Y*: 9.21%

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

VTMNX vs. RERGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VTMNX Vanguard Developed Markets Index Fund Institutional Shares	15.93%	35.16%	2.99%	17.82%	-15.36%	11.40%	10.26%	22.13%	-14.51%	26.45%
RERGX American Funds EuroPacific Growth Fund Class R-6	12.33%	29.34%	3.00%	16.11%	-22.77%	2.84%	25.27%	27.40%	-17.33%	31.19%

Correlation

The correlation between VTMNX and RERGX is 0.89, 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	0.89
Correlation (3Y) Calculated over the trailing 3-year period	0.91
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (10Y) Calculated over the trailing 10-year period	0.92
Correlation (All Time) Calculated using the full available price history since Jan 5, 2010	0.93

The correlation between VTMNX and RERGX has been stable across timeframes, ranging from 0.89 to 0.93 - a consistent structural relationship.

Return for Risk

VTMNX vs. RERGX — Risk / Return Rank

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

VTMNX

VTMNX Risk / Return Rank: 52
VTMNX Sharpe Ratio Rank: 54
VTMNX Sortino Ratio Rank: 49
VTMNX Omega Ratio Rank: 51
VTMNX Calmar Ratio Rank: 54
VTMNX Martin Ratio Rank: 54

RERGX

RERGX Risk / Return Rank: 40
RERGX Sharpe Ratio Rank: 42
RERGX Sortino Ratio Rank: 41
RERGX Omega Ratio Rank: 42
RERGX Calmar Ratio Rank: 37
RERGX Martin Ratio Rank: 40

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.

VTMNX vs. RERGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Developed Markets Index Fund Institutional Shares (VTMNX) and American Funds EuroPacific Growth Fund Class R-6 (RERGX). 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.

	VTMNX	RERGX	Difference
Sharpe ratio Return per unit of total volatility	2.17	1.89	+0.28
Sortino ratio Return per unit of downside risk	2.95	2.69	+0.27
Omega ratio Gain probability vs. loss probability	1.39	1.35	+0.04
Calmar ratio Return relative to maximum drawdown	2.81	2.32	+0.49
Martin ratio Return relative to average drawdown	10.90	8.74	+2.16
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VTMNX vs. RERGX - Sharpe Ratio Comparison

The current VTMNX Sharpe Ratio is 2.17, which is comparable to the RERGX Sharpe Ratio of 1.89. The chart below compares the historical Sharpe Ratios of VTMNX and RERGX, 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

	VTMNX	RERGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.17	1.89	+0.28
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.63	0.32	+0.31
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.62	0.55	+0.08
Sharpe Ratio (All Time) Calculated using the full available price history	0.32	0.43	-0.11

Drawdowns

VTMNX vs. RERGX - Drawdown Comparison

The maximum VTMNX drawdown since its inception was -60.57%, which is greater than RERGX's maximum drawdown of -37.30%. Use the drawdown chart below to compare losses from any high point for VTMNX and RERGX.

Drawdown Indicators

	VTMNX	RERGX	Difference
Max Drawdown Largest peak-to-trough decline	-60.57%	-37.30%	-23.27%
Max Drawdown (1Y) Largest decline over 1 year	-11.69%	-12.52%	+0.83%
Max Drawdown (3Y) Largest decline over 3 years	-13.16%	-15.62%	+2.46%
Max Drawdown (5Y) Largest decline over 5 years	-29.71%	-37.30%	+7.59%
Max Drawdown (10Y) Largest decline over 10 years	-35.60%	-37.30%	+1.70%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-13.22%	-9.21%	-4.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.00%	3.31%	-0.31%

Volatility

VTMNX vs. RERGX - Volatility Comparison

The current volatility for Vanguard Developed Markets Index Fund Institutional Shares (VTMNX) is 4.98%, while American Funds EuroPacific Growth Fund Class R-6 (RERGX) has a volatility of 5.40%. This indicates that VTMNX experiences smaller price fluctuations and is considered to be less risky than RERGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VTMNX	RERGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.98%	5.40%	-0.42%
Volatility (6M) Calculated over the trailing 6-month period	12.55%	12.91%	-0.36%
Volatility (1Y) Calculated over the trailing 1-year period	15.13%	15.38%	-0.25%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.88%	16.67%	-0.79%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.52%	16.93%	-0.41%

VTMNX vs. RERGX - Expense Ratio Comparison

VTMNX has a 0.05% expense ratio, which is lower than RERGX's 0.46% expense ratio.

Dividends

VTMNX vs. RERGX - Dividend Comparison

VTMNX's dividend yield for the trailing twelve months is around 2.60%, less than RERGX's 12.42% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RERGX American Funds EuroPacific Growth Fund Class R-6	12.42%	13.95%	4.96%	3.95%	2.02%	10.19%	0.41%	3.14%	3.17%	4.99%	1.64%	3.43%
VTMNX Vanguard Developed Markets Index Fund Institutional Shares	2.60%	3.22%	3.36%	3.15%	2.91%	3.16%	2.04%	3.05%	3.35%	2.77%	3.06%	2.92%

Frequently Asked Questions

Can I hold both VTMNX and RERGX in my portfolio?

VTMNX and RERGX have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VTMNX or RERGX?

RERGX has higher volatility (5.40%) compared to VTMNX (4.98%). In terms of maximum drawdown, VTMNX dropped -60.57% vs RERGX's -37.30%.

Which has better risk-adjusted returns?

VTMNX currently has the higher Sharpe Ratio (2.17 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.