TROSX vs. VTMNX

Last updated Jun 25, 2026

TROSX (T. Rowe Price Overseas Stock Fund) and VTMNX (Vanguard Developed Markets Index Fund Institutional Shares) are both Foreign Large Cap Equities funds. Over the past 10 years, TROSX returned 9.92%/yr vs 10.67%/yr for VTMNX. With a 0.98 correlation, they move nearly in lockstep. TROSX charges 0.77%/yr vs 0.05%/yr for VTMNX.

Performance

TROSX vs. VTMNX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T. Rowe Price Overseas Stock Fund (TROSX) and Vanguard Developed Markets Index Fund Institutional Shares (VTMNX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TROSX achieves a 8.52% return, which is significantly lower than VTMNX's 13.03% return. Over the past 10 years, TROSX has underperformed VTMNX with an annualized return of 9.92%, while VTMNX has yielded a comparatively higher 10.67% annualized return.

TROSX

• 1D: -2.01%
• 1M: 0.17%
• YTD: 8.52%
• 6M: 8.32%
• 1Y: 23.17%
• 3Y*: 16.27%
• 5Y*: 7.89%
• 10Y*: 9.92%

VTMNX

• 1D: -3.05%
• 1M: -0.05%
• YTD: 13.03%
• 6M: 12.75%
• 1Y: 28.55%
• 3Y*: 19.39%
• 5Y*: 9.49%
• 10Y*: 10.67%

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

TROSX vs. VTMNX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TROSX T. Rowe Price Overseas Stock Fund	8.52%	31.78%	2.91%	16.34%	-15.42%	12.24%	9.24%	22.91%	-15.08%	27.05%
VTMNX Vanguard Developed Markets Index Fund Institutional Shares	13.03%	35.16%	2.99%	17.82%	-15.36%	11.40%	10.26%	22.13%	-14.51%	26.45%

Correlation

The correlation between TROSX and VTMNX is 0.95, 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	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (10Y) Calculated over the trailing 10-year period	0.98
Correlation (All Time) Calculated using the full available price history since Jan 3, 2007	0.98

The correlation between TROSX and VTMNX has been stable across timeframes, ranging from 0.95 to 0.98 - a consistent structural relationship.

Return for Risk

TROSX vs. VTMNX — Risk / Return Rank

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

TROSX

TROSX Risk / Return Rank: 34
TROSX Sharpe Ratio Rank: 35
TROSX Sortino Ratio Rank: 34
TROSX Omega Ratio Rank: 34
TROSX Calmar Ratio Rank: 33
TROSX Martin Ratio Rank: 36

VTMNX

VTMNX Risk / Return Rank: 48
VTMNX Sharpe Ratio Rank: 48
VTMNX Sortino Ratio Rank: 43
VTMNX Omega Ratio Rank: 47
VTMNX Calmar Ratio Rank: 51
VTMNX Martin Ratio Rank: 52

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.

TROSX vs. VTMNX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Overseas Stock Fund (TROSX) and Vanguard Developed Markets Index Fund Institutional Shares (VTMNX). 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.

	TROSX	VTMNX	Difference
Sharpe ratio: Return per unit of total volatility	1.55	1.87	-0.32
Sortino ratio: Return per unit of downside risk	2.20	2.52	-0.32
Omega ratio: Gain probability vs. loss probability	1.28	1.34	-0.06
Calmar ratio: Return relative to maximum drawdown	2.01	2.60	-0.58
Martin ratio: Return relative to average drawdown	7.44	9.95	-2.51

TROSX vs. VTMNX - Sharpe Ratio Comparison

The current TROSX Sharpe Ratio is 1.55, which is comparable to the VTMNX Sharpe Ratio of 1.87. The chart below compares the historical Sharpe Ratios of TROSX and VTMNX, 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

TROSX vs. VTMNX - Drawdown Comparison

The maximum TROSX drawdown since its inception was -60.62%, roughly equal to the maximum VTMNX drawdown of -60.57%. Use the drawdown chart below to compare losses from any high point for TROSX and VTMNX.

Drawdown Indicators

	TROSX	VTMNX	Difference
Max Drawdown Largest peak-to-trough decline	-60.62%	-60.57%	-0.05%
Max Drawdown (1Y) Largest decline over 1 year	-12.42%	-11.69%	-0.73%
Max Drawdown (3Y) Largest decline over 3 years	-14.02%	-13.16%	-0.86%
Max Drawdown (5Y) Largest decline over 5 years	-29.45%	-29.71%	+0.26%
Max Drawdown (10Y) Largest decline over 10 years	-36.34%	-35.60%	-0.74%
Current Drawdown Current decline from peak	-2.01%	-3.05%	+1.04%
Average Drawdown Average peak-to-trough decline	-12.43%	-13.19%	+0.76%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.35%	3.04%	+0.31%

Volatility

TROSX vs. VTMNX - Volatility Comparison

The current volatility for T. Rowe Price Overseas Stock Fund (TROSX) is 5.24%, while Vanguard Developed Markets Index Fund Institutional Shares (VTMNX) has a volatility of 6.95%. This indicates that TROSX experiences smaller price fluctuations and is considered to be less risky than VTMNX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TROSX	VTMNX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.24%	6.95%	-1.71%
Volatility (6M) Calculated over the trailing 6-month period	13.62%	14.04%	-0.42%
Volatility (1Y) Calculated over the trailing 1-year period	16.16%	16.27%	-0.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.24%	16.11%	+0.13%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.74%	16.38%	+0.36%

TROSX vs. VTMNX - Expense Ratio Comparison

TROSX has a 0.77% expense ratio, which is higher than VTMNX's 0.05% expense ratio.

Dividends

TROSX vs. VTMNX - Dividend Comparison

TROSX's dividend yield for the trailing twelve months is around 1.89%, less than VTMNX's 2.59% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
TROSX T. Rowe Price Overseas Stock Fund	1.89%	2.05%	2.38%	2.28%	2.38%	1.88%	1.41%	2.14%	3.33%	1.86%	1.98%	2.11%
VTMNX Vanguard Developed Markets Index Fund Institutional Shares	2.59%	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 TROSX and VTMNX in my portfolio?

With a correlation of 0.95, TROSX and VTMNX 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, TROSX or VTMNX?

VTMNX has higher volatility (6.95%) compared to TROSX (5.24%). In terms of maximum drawdown, TROSX dropped -60.62% vs VTMNX's -60.57%.

Which has better risk-adjusted returns?

VTMNX currently has the higher Sharpe Ratio (1.87 vs 1.55), 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.