DLDRX vs. IEYYX

Last updated Jul 18, 2026

DLDRX (BNY Mellon Natural Resources Fund) and IEYYX (Delaware Ivy Energy Fund) are both Energy Equities funds. Over the past 10 years, DLDRX returned 12.43%/yr vs 1.12%/yr for IEYYX. Their correlation of 0.88 suggests significant overlap in exposure. DLDRX charges 0.91%/yr vs 1.28%/yr for IEYYX.

Performance

DLDRX vs. IEYYX - Performance Comparison

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

Returns By Period

The year-to-date returns for both stocks are quite close, with DLDRX having a 16.71% return and IEYYX slightly lower at 16.06%. Over the past 10 years, DLDRX has outperformed IEYYX with an annualized return of 12.43%, while IEYYX has yielded a comparatively lower 1.12% annualized return.

DLDRX

• 1D: -0.61%
• 1M: -2.57%
• 6M: 8.00%
• YTD: 16.71%
• 1Y: 33.47%
• 3Y*: 10.95%
• 5Y*: 17.55%
• 10Y*: 12.43%

IEYYX

• 1D: -0.39%
• 1M: -0.78%
• 6M: 9.32%
• YTD: 16.06%
• 1Y: 33.56%
• 3Y*: 9.46%
• 5Y*: 16.89%
• 10Y*: 1.12%

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

DLDRX vs. IEYYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DLDRX BNY Mellon Natural Resources Fund	16.71%	15.04%	0.81%	1.58%	34.18%	38.30%	6.58%	16.64%	-17.57%	14.05%
IEYYX Delaware Ivy Energy Fund	16.06%	22.56%	-3.60%	-4.08%	41.14%	43.34%	-38.68%	4.25%	-34.47%	-12.98%

Correlation

The correlation between DLDRX and IEYYX is 0.74, 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	0.74
Correlation (3Y) Calculated over the trailing 3-year period	0.74
Correlation (5Y) Calculated over the trailing 5-year period	0.83
Correlation (10Y) Calculated over the trailing 10-year period	0.80
Correlation (All Time) Calculated using the full available price history since Apr 5, 2006	0.88

The correlation between DLDRX and IEYYX shifts across timeframes, from 0.74 (1 year) to 0.88 (all time), reflecting how their relationship changes across market environments.

Return for Risk

DLDRX vs. IEYYX — Risk / Return Rank

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

DLDRX

DLDRX Risk / Return Rank: 63
DLDRX Sharpe Ratio Rank: 65
DLDRX Sortino Ratio Rank: 56
DLDRX Omega Ratio Rank: 54
DLDRX Calmar Ratio Rank: 81
DLDRX Martin Ratio Rank: 60

IEYYX

IEYYX Risk / Return Rank: 91
IEYYX Sharpe Ratio Rank: 92
IEYYX Sortino Ratio Rank: 86
IEYYX Omega Ratio Rank: 84
IEYYX Calmar Ratio Rank: 97
IEYYX Martin Ratio Rank: 94

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. IEYYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BNY Mellon Natural Resources Fund (DLDRX) and Delaware Ivy Energy Fund (IEYYX). 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	IEYYX	Difference
Sharpe ratio: Return per unit of total volatility	1.84	2.61	-0.77
Sortino ratio: Return per unit of downside risk	2.43	3.53	-1.10
Omega ratio: Gain probability vs. loss probability	1.31	1.46	-0.14
Calmar ratio: Return relative to maximum drawdown	3.05	5.27	-2.21
Martin ratio: Return relative to average drawdown	9.60	16.45	-6.85

DLDRX vs. IEYYX - Sharpe Ratio Comparison

The current DLDRX Sharpe Ratio is 1.84, which is comparable to the IEYYX Sharpe Ratio of 2.61. The chart below compares the historical Sharpe Ratios of DLDRX and IEYYX, 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. IEYYX - Drawdown Comparison

The maximum DLDRX drawdown since its inception was -69.13%, smaller than the maximum IEYYX drawdown of -85.16%. Use the drawdown chart below to compare losses from any high point for DLDRX and IEYYX.

Drawdown Indicators

	DLDRX	IEYYX	Difference
Max Drawdown Largest peak-to-trough decline	-69.13%	-85.16%	+16.03%
Max Drawdown (1Y) Largest decline over 1 year	-11.26%	-6.67%	-4.59%
Max Drawdown (3Y) Largest decline over 3 years	-32.44%	-22.71%	-9.73%
Max Drawdown (5Y) Largest decline over 5 years	-32.44%	-30.43%	-2.01%
Max Drawdown (10Y) Largest decline over 10 years	-54.24%	-81.45%	+27.21%
Current Drawdown Current decline from peak	-8.66%	-25.00%	+16.34%
Average Drawdown Average peak-to-trough decline	-20.70%	-35.10%	+14.40%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.57%	2.13%	+1.44%

Volatility

DLDRX vs. IEYYX - Volatility Comparison

BNY Mellon Natural Resources Fund (DLDRX) has a higher volatility of 4.39% compared to Delaware Ivy Energy Fund (IEYYX) at 3.66%. This indicates that DLDRX's price experiences larger fluctuations and is considered to be riskier than IEYYX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DLDRX	IEYYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.39%	3.66%	+0.73%
Volatility (6M) Calculated over the trailing 6-month period	14.12%	10.23%	+3.89%
Volatility (1Y) Calculated over the trailing 1-year period	18.74%	13.47%	+5.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.54%	21.34%	+4.20%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.46%	30.66%	-5.20%

DLDRX vs. IEYYX - Expense Ratio Comparison

DLDRX has a 0.91% expense ratio, which is lower than IEYYX's 1.28% expense ratio.

Dividends

DLDRX vs. IEYYX - Dividend Comparison

DLDRX's dividend yield for the trailing twelve months is around 2.00%, more than IEYYX's 0.75% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DLDRX BNY Mellon Natural Resources Fund	2.00%	2.33%	7.45%	12.42%	9.66%	5.07%	1.11%	2.16%	1.87%	0.63%	1.44%	1.25%
IEYYX Delaware Ivy Energy Fund	0.75%	0.87%	0.91%	2.37%	1.33%	1.49%	2.17%	0.00%	0.00%	0.36%	0.00%	0.00%

Frequently Asked Questions

Can I hold both DLDRX and IEYYX in my portfolio?

DLDRX and IEYYX have a correlation of 0.74, 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 IEYYX?

DLDRX has higher volatility (4.39%) compared to IEYYX (3.66%). In terms of maximum drawdown, DLDRX dropped -69.13% vs IEYYX's -85.16%.

Which has better risk-adjusted returns?

IEYYX currently has the higher Sharpe Ratio (2.61 vs 1.84), 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.