DLDRX vs. RYEIX

Last updated Jun 24, 2026

DLDRX (BNY Mellon Natural Resources Fund) and RYEIX (Rydex Energy Fund) are both Energy Equities funds. Over the past 10 years, DLDRX returned 13.45%/yr vs 5.89%/yr for RYEIX. Their correlation of 0.91 suggests significant overlap in exposure. DLDRX charges 0.91%/yr vs 1.36%/yr for RYEIX.

Performance

DLDRX vs. RYEIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BNY Mellon Natural Resources Fund (DLDRX) and Rydex Energy Fund (RYEIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DLDRX achieves a 18.52% return, which is significantly lower than RYEIX's 25.74% return. Over the past 10 years, DLDRX has outperformed RYEIX with an annualized return of 13.45%, while RYEIX has yielded a comparatively lower 5.89% annualized return.

DLDRX

• 1D: 0.43%
• 1M: -4.70%
• YTD: 18.52%
• 6M: 17.70%
• 1Y: 37.86%
• 3Y*: 14.18%
• 5Y*: 15.73%
• 10Y*: 13.45%

RYEIX

• 1D: 1.21%
• 1M: -8.20%
• YTD: 25.74%
• 6M: 25.62%
• 1Y: 36.64%
• 3Y*: 14.80%
• 5Y*: 15.77%
• 10Y*: 5.89%

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

DLDRX vs. RYEIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DLDRX BNY Mellon Natural Resources Fund	18.52%	15.04%	0.81%	1.58%	34.18%	38.30%	6.58%	16.64%	-17.57%	14.05%
RYEIX Rydex Energy Fund	25.74%	6.96%	0.49%	1.87%	49.54%	50.70%	-34.24%	6.50%	-25.31%	-6.17%

Correlation

The correlation between DLDRX and RYEIX is 0.71, 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	0.71
Correlation (3Y) Calculated over the trailing 3-year period	0.82
Correlation (5Y) Calculated over the trailing 5-year period	0.89
Correlation (10Y) Calculated over the trailing 10-year period	0.86
Correlation (All Time) Calculated using the full available price history since Oct 31, 2003	0.91

Over the past year, the correlation between DLDRX and RYEIX has dropped to 0.71 - well below their long-term average of 0.91, suggesting their price drivers have been diverging.

Return for Risk

DLDRX vs. RYEIX — Risk / Return Rank

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

DLDRX

DLDRX Risk / Return Rank: 62
DLDRX Sharpe Ratio Rank: 50
DLDRX Sortino Ratio Rank: 44
DLDRX Omega Ratio Rank: 42
DLDRX Calmar Ratio Rank: 93
DLDRX Martin Ratio Rank: 80

RYEIX

RYEIX Risk / Return Rank: 43
RYEIX Sharpe Ratio Rank: 38
RYEIX Sortino Ratio Rank: 33
RYEIX Omega Ratio Rank: 31
RYEIX Calmar Ratio Rank: 65
RYEIX Martin Ratio Rank: 49

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.

DLDRX vs. RYEIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BNY Mellon Natural Resources Fund (DLDRX) and Rydex Energy Fund (RYEIX). 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.

	DLDRX	RYEIX	Difference
Sharpe ratio: Return per unit of total volatility	1.92	1.66	+0.26
Sortino ratio: Return per unit of downside risk	2.55	2.21	+0.34
Omega ratio: Gain probability vs. loss probability	1.32	1.27	+0.05
Calmar ratio: Return relative to maximum drawdown	4.76	2.97	+1.79
Martin ratio: Return relative to average drawdown	13.87	9.50	+4.37

DLDRX vs. RYEIX - Sharpe Ratio Comparison

The current DLDRX Sharpe Ratio is 1.92, which is comparable to the RYEIX Sharpe Ratio of 1.66. The chart below compares the historical Sharpe Ratios of DLDRX and RYEIX, 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

DLDRX vs. RYEIX - Drawdown Comparison

The maximum DLDRX drawdown since its inception was -69.13%, smaller than the maximum RYEIX drawdown of -83.50%. Use the drawdown chart below to compare losses from any high point for DLDRX and RYEIX.

Drawdown Indicators

	DLDRX	RYEIX	Difference
Max Drawdown Largest peak-to-trough decline	-69.13%	-83.50%	+14.37%
Max Drawdown (1Y) Largest decline over 1 year	-7.64%	-11.15%	+3.51%
Max Drawdown (3Y) Largest decline over 3 years	-32.44%	-26.94%	-5.50%
Max Drawdown (5Y) Largest decline over 5 years	-32.44%	-26.94%	-5.50%
Max Drawdown (10Y) Largest decline over 10 years	-54.24%	-74.93%	+20.69%
Current Drawdown Current decline from peak	-7.25%	-10.07%	+2.82%
Average Drawdown Average peak-to-trough decline	-20.73%	-28.57%	+7.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.63%	3.52%	-0.89%

Volatility

DLDRX vs. RYEIX - Volatility Comparison

BNY Mellon Natural Resources Fund (DLDRX) and Rydex Energy Fund (RYEIX) have volatilities of 6.54% and 6.71%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DLDRX	RYEIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.54%	6.71%	-0.17%
Volatility (6M) Calculated over the trailing 6-month period	14.34%	15.47%	-1.13%
Volatility (1Y) Calculated over the trailing 1-year period	19.03%	20.05%	-1.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.65%	26.41%	-0.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.53%	31.82%	-6.29%

DLDRX vs. RYEIX - Expense Ratio Comparison

DLDRX has a 0.91% expense ratio, which is lower than RYEIX's 1.36% expense ratio.

Dividends

DLDRX vs. RYEIX - Dividend Comparison

DLDRX's dividend yield for the trailing twelve months is around 1.97%, less than RYEIX's 1.99% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DLDRX BNY Mellon Natural Resources Fund	1.97%	2.33%	7.45%	12.42%	9.66%	5.07%	1.11%	2.16%	1.87%	0.63%	1.44%	1.25%
RYEIX Rydex Energy Fund	1.99%	2.51%	3.84%	2.68%	2.55%	0.50%	2.38%	0.78%	0.81%	0.71%	0.62%	0.43%

Frequently Asked Questions

Can I hold both DLDRX and RYEIX in my portfolio?

DLDRX and RYEIX have a correlation of 0.71, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DLDRX or RYEIX?

RYEIX has higher volatility (6.71%) compared to DLDRX (6.54%). In terms of maximum drawdown, DLDRX dropped -69.13% vs RYEIX's -83.50%.

Which has better risk-adjusted returns?

DLDRX currently has the higher Sharpe Ratio (1.92 vs 1.66), 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.