APWEX vs. PSPFX

Last updated Jun 4, 2026

APWEX (Cavanal Hill World Energy Fund) and PSPFX (U.S. Global Investors Global Resources Fund) are both Energy Equities funds. Over the past 10 years, APWEX returned 12.21%/yr vs 10.10%/yr for PSPFX. A 0.68 correlation means they provide meaningful diversification when combined. APWEX charges 1.15%/yr vs 1.54%/yr for PSPFX.

Performance

APWEX vs. PSPFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Cavanal Hill World Energy Fund (APWEX) 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, APWEX achieves a 32.00% return, which is significantly higher than PSPFX's 16.89% return. Over the past 10 years, APWEX has outperformed PSPFX with an annualized return of 12.21%, while PSPFX has yielded a comparatively lower 10.10% annualized return.

APWEX

• 1D: 2.04%
• 1M: -3.16%
• YTD: 32.00%
• 6M: 26.88%
• 1Y: 47.25%
• 3Y*: 26.32%
• 5Y*: 20.10%
• 10Y*: 12.21%

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)

APWEX vs. PSPFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
APWEX Cavanal Hill World Energy Fund	32.00%	21.35%	13.22%	4.57%	32.44%	36.63%	-0.00%	8.29%	-24.50%	-1.94%
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 APWEX and PSPFX is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.45
Correlation (3Y) Calculated over the trailing 3-year period	0.56
Correlation (5Y) Calculated over the trailing 5-year period	0.67
Correlation (10Y) Calculated over the trailing 10-year period	0.66
Correlation (All Time) Calculated using the full available price history since Feb 7, 2014	0.68

Over the past year, the correlation between APWEX and PSPFX has dropped to 0.45 - well below their long-term average of 0.68, suggesting their price drivers have been diverging.

Return for Risk

APWEX vs. PSPFX — Risk / Return Rank

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

APWEX

APWEX Risk / Return Rank: 86
APWEX Sharpe Ratio Rank: 87
APWEX Sortino Ratio Rank: 77
APWEX Omega Ratio Rank: 71
APWEX Calmar Ratio Rank: 98
APWEX Martin Ratio Rank: 95

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.

APWEX vs. PSPFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Cavanal Hill World Energy Fund (APWEX) 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.

	APWEX	PSPFX	Difference
Sharpe ratio: Return per unit of total volatility	2.83	3.19	-0.36
Sortino ratio: Return per unit of downside risk	3.68	3.53	+0.15
Omega ratio: Gain probability vs. loss probability	1.47	1.53	-0.05
Calmar ratio: Return relative to maximum drawdown	7.83	4.78	+3.05
Martin ratio: Return relative to average drawdown	22.68	17.54	+5.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

APWEX vs. PSPFX - Sharpe Ratio Comparison

The current APWEX Sharpe Ratio is 2.83, which is comparable to the PSPFX Sharpe Ratio of 3.19. The chart below compares the historical Sharpe Ratios of APWEX 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

	APWEX	PSPFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.83	3.19	-0.36
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.78	0.43	+0.35
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.47	0.46	+0.01
Sharpe Ratio (All Time) Calculated using the full available price history	0.34	0.20	+0.14

Drawdowns

APWEX vs. PSPFX - Drawdown Comparison

The maximum APWEX drawdown since its inception was -61.57%, smaller than the maximum PSPFX drawdown of -79.09%. Use the drawdown chart below to compare losses from any high point for APWEX and PSPFX.

Drawdown Indicators

	APWEX	PSPFX	Difference
Max Drawdown Largest peak-to-trough decline	-61.57%	-79.09%	+17.52%
Max Drawdown (1Y) Largest decline over 1 year	-6.46%	-17.96%	+11.50%
Max Drawdown (3Y) Largest decline over 3 years	-23.02%	-20.50%	-2.52%
Max Drawdown (5Y) Largest decline over 5 years	-25.75%	-39.15%	+13.40%
Max Drawdown (10Y) Largest decline over 10 years	-57.43%	-56.80%	-0.63%
Current Drawdown Current decline from peak	-3.16%	-6.42%	+3.26%
Average Drawdown Average peak-to-trough decline	-17.06%	-42.50%	+25.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.22%	4.89%	-2.67%

Volatility

APWEX vs. PSPFX - Volatility Comparison

The current volatility for Cavanal Hill World Energy Fund (APWEX) is 5.82%, while U.S. Global Investors Global Resources Fund (PSPFX) has a volatility of 8.17%. This indicates that APWEX 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

	APWEX	PSPFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.82%	8.17%	-2.35%
Volatility (6M) Calculated over the trailing 6-month period	13.15%	22.74%	-9.59%
Volatility (1Y) Calculated over the trailing 1-year period	17.91%	26.97%	-9.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.82%	23.08%	+2.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.85%	21.82%	+4.03%

APWEX vs. PSPFX - Expense Ratio Comparison

APWEX has a 1.15% expense ratio, which is lower than PSPFX's 1.54% expense ratio.

Dividends

APWEX vs. PSPFX - Dividend Comparison

APWEX's dividend yield for the trailing twelve months is around 0.57%, less than PSPFX's 38.84% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
APWEX Cavanal Hill World Energy Fund	0.57%	0.45%	1.80%	1.54%	1.95%	1.44%	1.54%	2.57%	1.26%	0.43%	0.97%	0.67%
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 APWEX and PSPFX in my portfolio?

APWEX and PSPFX have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, APWEX or PSPFX?

PSPFX has higher volatility (8.17%) compared to APWEX (5.82%). In terms of maximum drawdown, APWEX dropped -61.57% vs PSPFX's -79.09%.

Which has better risk-adjusted returns?

PSPFX currently has the higher Sharpe Ratio (3.19 vs 2.83), 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.