MAGRX vs. PSPFX

Last updated Jun 4, 2026

MAGRX (BlackRock Natural Resources Trust Fund) and PSPFX (U.S. Global Investors Global Resources Fund) are both Energy Equities funds. Over the past 10 years, MAGRX returned 10.06%/yr vs 10.10%/yr for PSPFX. A 0.79 correlation means they provide meaningful diversification when combined. MAGRX charges 0.87%/yr vs 1.54%/yr for PSPFX.

Performance

MAGRX vs. PSPFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock Natural Resources Trust Fund (MAGRX) and U.S. Global Investors Global Resources Fund (PSPFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MAGRX achieves a 18.31% return, which is significantly higher than PSPFX's 16.89% return. Both investments have delivered pretty close results over the past 10 years, with MAGRX having a 10.06% annualized return and PSPFX not far ahead at 10.10%.

MAGRX

• 1D: 1.52%
• 1M: 1.37%
• YTD: 18.31%
• 6M: 22.80%
• 1Y: 42.68%
• 3Y*: 15.28%
• 5Y*: 11.47%
• 10Y*: 10.06%

PSPFX

• 1D: -0.37%
• 1M: 3.66%
• YTD: 16.89%
• 6M: 23.00%
• 1Y: 84.06%
• 3Y*: 24.63%
• 5Y*: 9.97%
• 10Y*: 10.10%

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

MAGRX vs. PSPFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MAGRX BlackRock Natural Resources Trust Fund	18.31%	30.26%	-5.65%	-1.36%	17.20%	30.76%	3.20%	15.34%	-17.95%	8.20%
PSPFX U.S. Global Investors Global Resources Fund	16.89%	80.27%	-3.74%	-7.67%	-12.39%	13.97%	37.05%	7.80%	-24.97%	19.62%

Correlation

The correlation between MAGRX and PSPFX is 0.67, 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	0.67
Correlation (3Y) Calculated over the trailing 3-year period	0.75
Correlation (5Y) Calculated over the trailing 5-year period	0.81
Correlation (10Y) Calculated over the trailing 10-year period	0.79
Correlation (All Time) Calculated using the full available price history since Oct 24, 1988	0.79

The correlation between MAGRX and PSPFX shifts across timeframes, from 0.67 (1 year) to 0.81 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

MAGRX vs. PSPFX — Risk / Return Rank

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

MAGRX

MAGRX Risk / Return Rank: 75
MAGRX Sharpe Ratio Rank: 78
MAGRX Sortino Ratio Rank: 60
MAGRX Omega Ratio Rank: 63
MAGRX Calmar Ratio Rank: 90
MAGRX Martin Ratio Rank: 83

PSPFX

PSPFX Risk / Return Rank: 85
PSPFX Sharpe Ratio Rank: 93
PSPFX Sortino Ratio Rank: 71
PSPFX Omega Ratio Rank: 80
PSPFX Calmar Ratio Rank: 91
PSPFX Martin Ratio Rank: 89

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.

MAGRX vs. PSPFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock Natural Resources Trust Fund (MAGRX) and U.S. Global Investors Global Resources Fund (PSPFX). 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.

	MAGRX	PSPFX	Difference
Sharpe ratio: Return per unit of total volatility	2.57	3.19	-0.62
Sortino ratio: Return per unit of downside risk	3.26	3.53	-0.27
Omega ratio: Gain probability vs. loss probability	1.44	1.53	-0.08
Calmar ratio: Return relative to maximum drawdown	4.61	4.78	-0.17
Martin ratio: Return relative to average drawdown	15.79	17.54	-1.75
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MAGRX vs. PSPFX - Sharpe Ratio Comparison

The current MAGRX Sharpe Ratio is 2.57, which is comparable to the PSPFX Sharpe Ratio of 3.19. The chart below compares the historical Sharpe Ratios of MAGRX and PSPFX, 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

	MAGRX	PSPFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.57	3.19	-0.62
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.55	0.43	+0.11
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.45	0.46	-0.02
Sharpe Ratio (All Time) Calculated using the full available price history	0.34	0.20	+0.14

Drawdowns

MAGRX vs. PSPFX - Drawdown Comparison

The maximum MAGRX drawdown since its inception was -65.68%, smaller than the maximum PSPFX drawdown of -79.09%. Use the drawdown chart below to compare losses from any high point for MAGRX and PSPFX.

Drawdown Indicators

	MAGRX	PSPFX	Difference
Max Drawdown Largest peak-to-trough decline	-65.68%	-79.09%	+13.41%
Max Drawdown (1Y) Largest decline over 1 year	-9.27%	-17.96%	+8.69%
Max Drawdown (3Y) Largest decline over 3 years	-19.46%	-20.50%	+1.04%
Max Drawdown (5Y) Largest decline over 5 years	-26.30%	-39.15%	+12.85%
Max Drawdown (10Y) Largest decline over 10 years	-50.11%	-56.80%	+6.69%
Current Drawdown Current decline from peak	-3.04%	-6.42%	+3.38%
Average Drawdown Average peak-to-trough decline	-15.93%	-42.50%	+26.57%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.70%	4.89%	-2.19%

Volatility

MAGRX vs. PSPFX - Volatility Comparison

The current volatility for BlackRock Natural Resources Trust Fund (MAGRX) is 4.78%, while U.S. Global Investors Global Resources Fund (PSPFX) has a volatility of 8.17%. This indicates that MAGRX experiences smaller price fluctuations and is considered to be less risky than PSPFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MAGRX	PSPFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.78%	8.17%	-3.39%
Volatility (6M) Calculated over the trailing 6-month period	13.17%	22.74%	-9.57%
Volatility (1Y) Calculated over the trailing 1-year period	16.71%	26.97%	-10.26%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.00%	23.08%	-2.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.53%	21.82%	+0.71%

MAGRX vs. PSPFX - Expense Ratio Comparison

MAGRX has a 0.87% expense ratio, which is lower than PSPFX's 1.54% expense ratio.

Dividends

MAGRX vs. PSPFX - Dividend Comparison

MAGRX's dividend yield for the trailing twelve months is around 7.13%, less than PSPFX's 38.84% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MAGRX BlackRock Natural Resources Trust Fund	7.13%	8.44%	3.32%	4.16%	10.86%	3.90%	2.07%	2.97%	20.12%	49.72%	0.87%	8.29%
PSPFX U.S. Global Investors Global Resources Fund	38.84%	0.83%	4.34%	0.00%	15.68%	18.92%	5.49%	1.90%	4.70%	3.01%	3.33%	1.12%

Frequently Asked Questions

Can I hold both MAGRX and PSPFX in my portfolio?

MAGRX and PSPFX have a correlation of 0.67, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MAGRX or PSPFX?

PSPFX has higher volatility (8.17%) compared to MAGRX (4.78%). In terms of maximum drawdown, MAGRX dropped -65.68% vs PSPFX's -79.09%.

Which has better risk-adjusted returns?

PSPFX currently has the higher Sharpe Ratio (3.19 vs 2.57), 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.