DSPIX vs. PRGFX

Last updated Jun 23, 2026

DSPIX (BNY Mellon Institutional S&P 500 Stock Index Fund) and PRGFX (T. Rowe Price Growth Stock Fund) are both mutual funds - DSPIX is a S&P 500 fund tracking the S&P 500 Index, while PRGFX is a Large Cap Growth Equities fund managed by T. Rowe Price. Over the past 10 years, DSPIX returned 15.00%/yr vs 15.92%/yr for PRGFX. Their correlation of 0.92 suggests significant overlap in exposure. DSPIX charges 0.20%/yr vs 0.63%/yr for PRGFX.

Performance

DSPIX vs. PRGFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BNY Mellon Institutional S&P 500 Stock Index Fund (DSPIX) and T. Rowe Price Growth Stock Fund (PRGFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DSPIX achieves a 10.09% return, which is significantly higher than PRGFX's 3.52% return. Over the past 10 years, DSPIX has underperformed PRGFX with an annualized return of 15.00%, while PRGFX has yielded a comparatively higher 15.92% annualized return.

DSPIX

• 1D: 1.07%
• 1M: 0.45%
• YTD: 10.09%
• 6M: 9.73%
• 1Y: 27.13%
• 3Y*: 20.80%
• 5Y*: 13.87%
• 10Y*: 15.00%

PRGFX

• 1D: 1.71%
• 1M: -0.72%
• YTD: 3.52%
• 6M: 2.95%
• 1Y: 19.83%
• 3Y*: 22.66%
• 5Y*: 8.90%
• 10Y*: 15.92%

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

DSPIX vs. PRGFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DSPIX BNY Mellon Institutional S&P 500 Stock Index Fund	10.09%	17.81%	24.40%	26.36%	-18.51%	28.64%	14.18%	31.31%	-4.36%	21.59%
PRGFX T. Rowe Price Growth Stock Fund	3.52%	15.64%	38.36%	45.33%	-40.12%	19.86%	36.92%	30.83%	-1.04%	33.57%

Correlation

The correlation between DSPIX and PRGFX is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.89
Correlation (3Y) Calculated over the trailing 3-year period	0.88
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (10Y) Calculated over the trailing 10-year period	0.90
Correlation (All Time) Calculated using the full available price history since Sep 30, 1993	0.92

The correlation between DSPIX and PRGFX has been stable across timeframes, ranging from 0.88 to 0.92 - a consistent structural relationship.

Return for Risk

DSPIX vs. PRGFX — Risk / Return Rank

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

DSPIX

DSPIX Risk / Return Rank: 66
DSPIX Sharpe Ratio Rank: 64
DSPIX Sortino Ratio Rank: 58
DSPIX Omega Ratio Rank: 60
DSPIX Calmar Ratio Rank: 68
DSPIX Martin Ratio Rank: 78

PRGFX

PRGFX Risk / Return Rank: 16
PRGFX Sharpe Ratio Rank: 19
PRGFX Sortino Ratio Rank: 17
PRGFX Omega Ratio Rank: 17
PRGFX Calmar Ratio Rank: 12
PRGFX Martin Ratio Rank: 12

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.

DSPIX vs. PRGFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BNY Mellon Institutional S&P 500 Stock Index Fund (DSPIX) and T. Rowe Price Growth Stock Fund (PRGFX). 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.

	DSPIX	PRGFX	Difference
Sharpe ratio: Return per unit of total volatility	2.16	1.15	+1.01
Sortino ratio: Return per unit of downside risk	2.92	1.63	+1.29
Omega ratio: Gain probability vs. loss probability	1.39	1.21	+0.19
Calmar ratio: Return relative to maximum drawdown	3.03	1.07	+1.96
Martin ratio: Return relative to average drawdown	13.65	3.36	+10.30

DSPIX vs. PRGFX - Sharpe Ratio Comparison

The current DSPIX Sharpe Ratio is 2.16, which is higher than the PRGFX Sharpe Ratio of 1.15. The chart below compares the historical Sharpe Ratios of DSPIX and PRGFX, 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

DSPIX vs. PRGFX - Drawdown Comparison

The maximum DSPIX drawdown since its inception was -55.32%, roughly equal to the maximum PRGFX drawdown of -54.01%. Use the drawdown chart below to compare losses from any high point for DSPIX and PRGFX.

Drawdown Indicators

	DSPIX	PRGFX	Difference
Max Drawdown Largest peak-to-trough decline	-55.32%	-54.01%	-1.31%
Max Drawdown (1Y) Largest decline over 1 year	-8.92%	-18.02%	+9.10%
Max Drawdown (3Y) Largest decline over 3 years	-18.81%	-22.69%	+3.88%
Max Drawdown (5Y) Largest decline over 5 years	-24.62%	-46.44%	+21.82%
Max Drawdown (10Y) Largest decline over 10 years	-33.79%	-46.44%	+12.65%
Current Drawdown Current decline from peak	-1.38%	-3.65%	+2.27%
Average Drawdown Average peak-to-trough decline	-9.27%	-10.67%	+1.40%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.97%	5.72%	-3.75%

Volatility

DSPIX vs. PRGFX - Volatility Comparison

The current volatility for BNY Mellon Institutional S&P 500 Stock Index Fund (DSPIX) is 4.76%, while T. Rowe Price Growth Stock Fund (PRGFX) has a volatility of 6.30%. This indicates that DSPIX experiences smaller price fluctuations and is considered to be less risky than PRGFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DSPIX	PRGFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.76%	6.30%	-1.54%
Volatility (6M) Calculated over the trailing 6-month period	9.91%	13.08%	-3.17%
Volatility (1Y) Calculated over the trailing 1-year period	12.48%	16.69%	-4.21%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.02%	23.18%	-6.16%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.07%	22.16%	-4.09%

DSPIX vs. PRGFX - Expense Ratio Comparison

DSPIX has a 0.20% expense ratio, which is lower than PRGFX's 0.63% expense ratio.

Dividends

DSPIX vs. PRGFX - Dividend Comparison

DSPIX's dividend yield for the trailing twelve months is around 30.74%, more than PRGFX's 13.12% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DSPIX BNY Mellon Institutional S&P 500 Stock Index Fund	30.74%	33.86%	27.60%	27.46%	18.33%	12.91%	1.15%	5.01%	6.33%	2.53%	2.91%	2.63%
PRGFX T. Rowe Price Growth Stock Fund	13.12%	13.58%	13.26%	3.34%	3.55%	9.34%	3.51%	1.81%	9.09%	13.57%	2.22%	7.23%

Frequently Asked Questions

Can I hold both DSPIX and PRGFX in my portfolio?

DSPIX and PRGFX have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DSPIX or PRGFX?

PRGFX has higher volatility (6.30%) compared to DSPIX (4.76%). In terms of maximum drawdown, DSPIX dropped -55.32% vs PRGFX's -54.01%.

Which has better risk-adjusted returns?

DSPIX currently has the higher Sharpe Ratio (2.16 vs 1.15), 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.