RPGEX vs. PREIX

Last updated Jun 23, 2026

RPGEX (T. Rowe Price Global Growth Stock Fund) and PREIX (T. Rowe Price Equity Index 500 Fund) are both mutual funds - RPGEX is a Global Equities fund actively managed by T. Rowe Price, while PREIX is a Large Cap Blend Equities fund tracking the S&P 500 Index. RPGEX is actively managed, while PREIX is passively managed. Over the past 10 years, RPGEX returned 13.22%/yr vs 15.34%/yr for PREIX. Their correlation of 0.92 suggests significant overlap in exposure. RPGEX charges 0.91%/yr vs 0.15%/yr for PREIX.

Performance

RPGEX vs. PREIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T. Rowe Price Global Growth Stock Fund (RPGEX) and T. Rowe Price Equity Index 500 Fund (PREIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RPGEX achieves a 13.83% return, which is significantly higher than PREIX's 10.08% return. Over the past 10 years, RPGEX has underperformed PREIX with an annualized return of 13.22%, while PREIX has yielded a comparatively higher 15.34% annualized return.

RPGEX

• 1D: 1.85%
• 1M: 3.06%
• YTD: 13.83%
• 6M: 13.32%
• 1Y: 27.53%
• 3Y*: 17.56%
• 5Y*: 5.43%
• 10Y*: 13.22%

PREIX

• 1D: 1.08%
• 1M: 0.45%
• YTD: 10.08%
• 6M: 9.58%
• 1Y: 26.95%
• 3Y*: 20.76%
• 5Y*: 13.90%
• 10Y*: 15.34%

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

RPGEX vs. PREIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RPGEX T. Rowe Price Global Growth Stock Fund	13.83%	14.57%	18.81%	19.19%	-29.77%	11.05%	44.28%	30.76%	-7.10%	34.26%
PREIX T. Rowe Price Equity Index 500 Fund	10.08%	17.66%	24.78%	26.07%	-18.27%	28.48%	18.17%	31.47%	-4.59%	21.01%

Correlation

The correlation between RPGEX and PREIX 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	0.95
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (10Y) Calculated over the trailing 10-year period	0.91
Correlation (All Time) Calculated using the full available price history since Jan 2, 2009	0.92

The correlation between RPGEX and PREIX has been stable across timeframes, ranging from 0.91 to 0.95 - a consistent structural relationship.

Return for Risk

RPGEX vs. PREIX — Risk / Return Rank

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

RPGEX

RPGEX Risk / Return Rank: 47
RPGEX Sharpe Ratio Rank: 45
RPGEX Sortino Ratio Rank: 40
RPGEX Omega Ratio Rank: 45
RPGEX Calmar Ratio Rank: 50
RPGEX Martin Ratio Rank: 54

PREIX

PREIX Risk / Return Rank: 65
PREIX Sharpe Ratio Rank: 63
PREIX Sortino Ratio Rank: 57
PREIX Omega Ratio Rank: 60
PREIX Calmar Ratio Rank: 67
PREIX Martin Ratio Rank: 78

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.

RPGEX vs. PREIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Global Growth Stock Fund (RPGEX) and T. Rowe Price Equity Index 500 Fund (PREIX). 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.

	RPGEX	PREIX	Difference
Sharpe ratio: Return per unit of total volatility	1.82	2.15	-0.32
Sortino ratio: Return per unit of downside risk	2.46	2.90	-0.44
Omega ratio: Gain probability vs. loss probability	1.33	1.39	-0.06
Calmar ratio: Return relative to maximum drawdown	2.58	3.00	-0.42
Martin ratio: Return relative to average drawdown	10.23	13.55	-3.31

RPGEX vs. PREIX - Sharpe Ratio Comparison

The current RPGEX Sharpe Ratio is 1.82, which is comparable to the PREIX Sharpe Ratio of 2.15. The chart below compares the historical Sharpe Ratios of RPGEX and PREIX, 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

RPGEX vs. PREIX - Drawdown Comparison

The maximum RPGEX drawdown since its inception was -39.67%, smaller than the maximum PREIX drawdown of -55.32%. Use the drawdown chart below to compare losses from any high point for RPGEX and PREIX.

Drawdown Indicators

	RPGEX	PREIX	Difference
Max Drawdown Largest peak-to-trough decline	-39.67%	-55.32%	+15.65%
Max Drawdown (1Y) Largest decline over 1 year	-10.50%	-8.93%	-1.57%
Max Drawdown (3Y) Largest decline over 3 years	-17.69%	-18.78%	+1.09%
Max Drawdown (5Y) Largest decline over 5 years	-39.67%	-24.60%	-15.07%
Max Drawdown (10Y) Largest decline over 10 years	-39.67%	-33.81%	-5.86%
Current Drawdown Current decline from peak	0.00%	-1.37%	+1.37%
Average Drawdown Average peak-to-trough decline	-7.56%	-8.72%	+1.16%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.64%	1.97%	+0.67%

Volatility

RPGEX vs. PREIX - Volatility Comparison

T. Rowe Price Global Growth Stock Fund (RPGEX) has a higher volatility of 6.50% compared to T. Rowe Price Equity Index 500 Fund (PREIX) at 4.77%. This indicates that RPGEX's price experiences larger fluctuations and is considered to be riskier than PREIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RPGEX	PREIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.50%	4.77%	+1.73%
Volatility (6M) Calculated over the trailing 6-month period	12.40%	9.91%	+2.49%
Volatility (1Y) Calculated over the trailing 1-year period	14.86%	12.48%	+2.38%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.71%	17.09%	+0.62%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.15%	18.15%	0.00%

RPGEX vs. PREIX - Expense Ratio Comparison

RPGEX has a 0.91% expense ratio, which is higher than PREIX's 0.15% expense ratio.

Dividends

RPGEX vs. PREIX - Dividend Comparison

RPGEX's dividend yield for the trailing twelve months is around 10.12%, more than PREIX's 2.13% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PREIX T. Rowe Price Equity Index 500 Fund	2.13%	2.32%	1.17%	1.32%	1.50%	1.56%	1.97%	2.13%	2.60%	1.30%	2.03%	2.02%
RPGEX T. Rowe Price Global Growth Stock Fund	10.12%	11.52%	0.04%	0.21%	0.07%	8.84%	3.18%	0.23%	1.67%	0.82%	0.21%	4.95%

Frequently Asked Questions

Can I hold both RPGEX and PREIX in my portfolio?

With a correlation of 0.95, RPGEX and PREIX 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, RPGEX or PREIX?

RPGEX has higher volatility (6.50%) compared to PREIX (4.77%). In terms of maximum drawdown, RPGEX dropped -39.67% vs PREIX's -55.32%.

Which has better risk-adjusted returns?

PREIX currently has the higher Sharpe Ratio (2.15 vs 1.82), 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.