RPGEX vs. NALFX

Last updated Jun 4, 2026

RPGEX (T. Rowe Price Global Growth Stock Fund) and NALFX (New Alternatives Fund) are both Global Equities funds. Over the past 10 years, RPGEX returned 13.07%/yr vs 10.92%/yr for NALFX. A 0.71 correlation means they provide meaningful diversification when combined. RPGEX charges 0.91%/yr vs 0.89%/yr for NALFX.

Performance

RPGEX vs. NALFX - Performance Comparison

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

Returns By Period

In the year-to-date period, RPGEX achieves a 13.76% return, which is significantly lower than NALFX's 19.18% return. Over the past 10 years, RPGEX has outperformed NALFX with an annualized return of 13.07%, while NALFX has yielded a comparatively lower 10.92% annualized return.

RPGEX

• 1D: 0.48%
• 1M: 6.81%
• YTD: 13.76%
• 6M: 13.50%
• 1Y: 26.74%
• 3Y*: 18.58%
• 5Y*: 6.05%
• 10Y*: 13.07%

NALFX

• 1D: 1.25%
• 1M: 3.67%
• YTD: 19.18%
• 6M: 20.44%
• 1Y: 32.39%
• 3Y*: 10.98%
• 5Y*: 3.35%
• 10Y*: 10.92%

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

RPGEX vs. NALFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RPGEX T. Rowe Price Global Growth Stock Fund	13.76%	14.57%	18.81%	19.19%	-29.77%	11.05%	44.28%	30.76%	-7.10%	34.26%
NALFX New Alternatives Fund	19.18%	28.13%	-6.03%	-2.49%	-15.87%	-4.78%	61.74%	36.98%	-6.91%	21.24%

Correlation

The correlation between RPGEX and NALFX is 0.65, 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	0.65
Correlation (3Y) Calculated over the trailing 3-year period	0.59
Correlation (5Y) Calculated over the trailing 5-year period	0.65
Correlation (10Y) Calculated over the trailing 10-year period	0.63
Correlation (All Time) Calculated using the full available price history since Jan 5, 2009	0.71

The correlation between RPGEX and NALFX shifts across timeframes, from 0.59 (3 years) to 0.71 (all time), reflecting how their relationship changes across market environments.

Return for Risk

RPGEX vs. NALFX — Risk / Return Rank

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

RPGEX

RPGEX Risk / Return Rank: 45
RPGEX Sharpe Ratio Rank: 45
RPGEX Sortino Ratio Rank: 41
RPGEX Omega Ratio Rank: 44
RPGEX Calmar Ratio Rank: 46
RPGEX Martin Ratio Rank: 51

NALFX

NALFX Risk / Return Rank: 64
NALFX Sharpe Ratio Rank: 60
NALFX Sortino Ratio Rank: 52
NALFX Omega Ratio Rank: 50
NALFX Calmar Ratio Rank: 89
NALFX Martin Ratio Rank: 69

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. NALFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Global Growth Stock Fund (RPGEX) and New Alternatives Fund (NALFX). 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.

	RPGEX	NALFX	Difference
Sharpe ratio: Return per unit of total volatility	1.98	2.28	-0.30
Sortino ratio: Return per unit of downside risk	2.69	3.04	-0.35
Omega ratio: Gain probability vs. loss probability	1.36	1.39	-0.03
Calmar ratio: Return relative to maximum drawdown	2.58	4.47	-1.89
Martin ratio: Return relative to average drawdown	10.49	13.35	-2.86
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RPGEX vs. NALFX - Sharpe Ratio Comparison

The current RPGEX Sharpe Ratio is 1.98, which is comparable to the NALFX Sharpe Ratio of 2.28. The chart below compares the historical Sharpe Ratios of RPGEX and NALFX, 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

	RPGEX	NALFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.98	2.28	-0.30
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.35	0.19	+0.16
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.73	0.61	+0.12
Sharpe Ratio (All Time) Calculated using the full available price history	0.69	0.43	+0.26

Drawdowns

RPGEX vs. NALFX - Drawdown Comparison

The maximum RPGEX drawdown since its inception was -39.67%, smaller than the maximum NALFX drawdown of -59.67%. Use the drawdown chart below to compare losses from any high point for RPGEX and NALFX.

Drawdown Indicators

	RPGEX	NALFX	Difference
Max Drawdown Largest peak-to-trough decline	-39.67%	-59.67%	+20.00%
Max Drawdown (1Y) Largest decline over 1 year	-10.50%	-7.53%	-2.97%
Max Drawdown (3Y) Largest decline over 3 years	-17.69%	-24.52%	+6.83%
Max Drawdown (5Y) Largest decline over 5 years	-39.67%	-38.03%	-1.64%
Max Drawdown (10Y) Largest decline over 10 years	-39.67%	-42.35%	+2.68%
Current Drawdown Current decline from peak	0.00%	-0.05%	+0.05%
Average Drawdown Average peak-to-trough decline	-7.58%	-14.84%	+7.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.58%	2.52%	+0.06%

Volatility

RPGEX vs. NALFX - Volatility Comparison

The current volatility for T. Rowe Price Global Growth Stock Fund (RPGEX) is 3.93%, while New Alternatives Fund (NALFX) has a volatility of 5.44%. This indicates that RPGEX experiences smaller price fluctuations and is considered to be less risky than NALFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RPGEX	NALFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.93%	5.44%	-1.51%
Volatility (6M) Calculated over the trailing 6-month period	10.98%	11.93%	-0.95%
Volatility (1Y) Calculated over the trailing 1-year period	13.71%	14.79%	-1.08%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.54%	17.82%	-0.28%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.07%	18.03%	+0.04%

RPGEX vs. NALFX - Expense Ratio Comparison

RPGEX has a 0.91% expense ratio, which is higher than NALFX's 0.89% expense ratio.

Dividends

RPGEX vs. NALFX - Dividend Comparison

RPGEX's dividend yield for the trailing twelve months is around 10.13%, more than NALFX's 0.98% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NALFX New Alternatives Fund	0.98%	1.17%	2.04%	4.47%	4.63%	5.14%	4.93%	5.55%	6.62%	4.16%	3.71%	1.71%
RPGEX T. Rowe Price Global Growth Stock Fund	10.13%	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 NALFX in my portfolio?

RPGEX and NALFX have a correlation of 0.65, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RPGEX or NALFX?

NALFX has higher volatility (5.44%) compared to RPGEX (3.93%). In terms of maximum drawdown, RPGEX dropped -39.67% vs NALFX's -59.67%.

Which has better risk-adjusted returns?

NALFX currently has the higher Sharpe Ratio (2.28 vs 1.98), 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.