DWOIX vs. RYGRX

Last updated Jun 26, 2026

DWOIX (BNY Mellon Research Growth Fund, Inc.) and RYGRX (Rydex S&P 500 Pure Growth Fund) are both Large Cap Growth Equities funds. Over the past 10 years, DWOIX returned 15.69%/yr vs 13.56%/yr for RYGRX. Their correlation of 0.92 suggests significant overlap in exposure. DWOIX charges 0.78%/yr vs 2.26%/yr for RYGRX.

Performance

DWOIX vs. RYGRX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BNY Mellon Research Growth Fund, Inc. (DWOIX) and Rydex S&P 500 Pure Growth Fund (RYGRX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DWOIX achieves a -2.90% return, which is significantly lower than RYGRX's 29.30% return. Over the past 10 years, DWOIX has outperformed RYGRX with an annualized return of 15.69%, while RYGRX has yielded a comparatively lower 13.56% annualized return.

DWOIX

• 1D: -0.15%
• 1M: -9.83%
• YTD: -2.90%
• 6M: -4.19%
• 1Y: 9.80%
• 3Y*: 18.02%
• 5Y*: 8.74%
• 10Y*: 15.69%

RYGRX

• 1D: 0.15%
• 1M: 2.69%
• YTD: 29.30%
• 6M: 26.22%
• 1Y: 34.45%
• 3Y*: 25.15%
• 5Y*: 9.39%
• 10Y*: 13.56%

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

DWOIX vs. RYGRX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DWOIX BNY Mellon Research Growth Fund, Inc.	-2.90%	15.02%	33.86%	42.21%	-33.77%	19.08%	51.52%	29.43%	0.63%	23.77%
RYGRX Rydex S&P 500 Pure Growth Fund	29.30%	11.00%	25.73%	5.80%	-28.71%	26.61%	26.34%	34.13%	-6.28%	23.74%

Correlation

The correlation between DWOIX and RYGRX is 0.78, 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	0.78
Correlation (3Y) Calculated over the trailing 3-year period	0.80
Correlation (5Y) Calculated over the trailing 5-year period	0.85
Correlation (10Y) Calculated over the trailing 10-year period	0.88
Correlation (All Time) Calculated using the full available price history since Sep 30, 2008	0.92

The correlation between DWOIX and RYGRX shifts across timeframes, from 0.78 (1 year) to 0.92 (all time), reflecting how their relationship changes across market environments.

Return for Risk

DWOIX vs. RYGRX — Risk / Return Rank

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

DWOIX

DWOIX Risk / Return Rank: 10
DWOIX Sharpe Ratio Rank: 9
DWOIX Sortino Ratio Rank: 8
DWOIX Omega Ratio Rank: 10
DWOIX Calmar Ratio Rank: 10
DWOIX Martin Ratio Rank: 11

RYGRX

RYGRX Risk / Return Rank: 53
RYGRX Sharpe Ratio Rank: 40
RYGRX Sortino Ratio Rank: 37
RYGRX Omega Ratio Rank: 39
RYGRX Calmar Ratio Rank: 77
RYGRX 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.

DWOIX vs. RYGRX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BNY Mellon Research Growth Fund, Inc. (DWOIX) and Rydex S&P 500 Pure Growth Fund (RYGRX). 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.

	DWOIX	RYGRX	Difference
Sharpe ratio: Return per unit of total volatility	0.55	1.54	-0.99
Sortino ratio: Return per unit of downside risk	0.81	2.12	-1.32
Omega ratio: Gain probability vs. loss probability	1.12	1.28	-0.16
Calmar ratio: Return relative to maximum drawdown	0.69	3.03	-2.34
Martin ratio: Return relative to average drawdown	2.42	11.18	-8.76

DWOIX vs. RYGRX - Sharpe Ratio Comparison

The current DWOIX Sharpe Ratio is 0.55, which is lower than the RYGRX Sharpe Ratio of 1.54. The chart below compares the historical Sharpe Ratios of DWOIX and RYGRX, 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

DWOIX vs. RYGRX - Drawdown Comparison

The maximum DWOIX drawdown since its inception was -38.50%, smaller than the maximum RYGRX drawdown of -54.22%. Use the drawdown chart below to compare losses from any high point for DWOIX and RYGRX.

Drawdown Indicators

	DWOIX	RYGRX	Difference
Max Drawdown Largest peak-to-trough decline	-38.50%	-54.22%	+15.72%
Max Drawdown (1Y) Largest decline over 1 year	-15.08%	-11.17%	-3.91%
Max Drawdown (3Y) Largest decline over 3 years	-27.54%	-24.95%	-2.59%
Max Drawdown (5Y) Largest decline over 5 years	-38.50%	-36.57%	-1.93%
Max Drawdown (10Y) Largest decline over 10 years	-38.50%	-36.63%	-1.87%
Current Drawdown Current decline from peak	-11.23%	-4.39%	-6.84%
Average Drawdown Average peak-to-trough decline	-6.62%	-9.39%	+2.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.29%	3.02%	+1.27%

Volatility

DWOIX vs. RYGRX - Volatility Comparison

BNY Mellon Research Growth Fund, Inc. (DWOIX) and Rydex S&P 500 Pure Growth Fund (RYGRX) have volatilities of 11.15% and 11.06%, 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

	DWOIX	RYGRX	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.15%	11.06%	+0.09%
Volatility (6M) Calculated over the trailing 6-month period	15.88%	18.97%	-3.09%
Volatility (1Y) Calculated over the trailing 1-year period	18.88%	22.02%	-3.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.31%	23.92%	+0.39%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.91%	23.06%	-0.15%

DWOIX vs. RYGRX - Expense Ratio Comparison

DWOIX has a 0.78% expense ratio, which is lower than RYGRX's 2.26% expense ratio.

Dividends

DWOIX vs. RYGRX - Dividend Comparison

DWOIX's dividend yield for the trailing twelve months is around 10.65%, more than RYGRX's 3.94% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DWOIX BNY Mellon Research Growth Fund, Inc.	10.65%	15.61%	9.46%	3.66%	16.15%	14.40%	10.82%	9.94%	19.19%	9.73%	5.89%	6.88%
RYGRX Rydex S&P 500 Pure Growth Fund	3.94%	5.09%	0.00%	0.00%	0.00%	2.81%	4.43%	12.10%	7.15%	6.26%	0.05%	2.96%

Frequently Asked Questions

Can I hold both DWOIX and RYGRX in my portfolio?

DWOIX and RYGRX have a correlation of 0.78, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DWOIX or RYGRX?

DWOIX has higher volatility (11.15%) compared to RYGRX (11.06%). In terms of maximum drawdown, DWOIX dropped -38.50% vs RYGRX's -54.22%.

Which has better risk-adjusted returns?

RYGRX currently has the higher Sharpe Ratio (1.54 vs 0.55), 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.