MPNIX vs. DSPIX

Last updated Apr 1, 2026

Compare and contrast key facts about BNY Mellon National Intermediate Municipal Bond Fund (MPNIX) and BNY Mellon Institutional S&P 500 Stock Index Fund (DSPIX).

MPNIX is managed by BNY Mellon. It was launched on Oct 1, 2000. DSPIX is a passively managed fund by BNY Mellon that tracks the performance of the S&P 500 Index. It was launched on Sep 30, 1993.

Performance

MPNIX vs. DSPIX - Performance Comparison

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

MPNIX vs. DSPIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MPNIX BNY Mellon National Intermediate Municipal Bond Fund	100.99%	6.18%	1.22%	5.21%	-7.65%	0.88%	4.70%	7.43%	0.91%	4.21%
DSPIX BNY Mellon Institutional S&P 500 Stock Index Fund	-7.09%	17.81%	24.40%	26.36%	-18.51%	28.64%	14.18%	31.31%	-4.36%	21.59%

Returns By Period

MPNIX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

DSPIX

• 1D: -0.38%
• 1M: -7.69%
• YTD: -7.09%
• 6M: -4.53%
• 1Y: 14.39%
• 3Y*: 17.00%
• 5Y*: 11.19%
• 10Y*: 13.17%

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

MPNIX vs. DSPIX - Expense Ratio Comparison

MPNIX has a 0.50% expense ratio, which is higher than DSPIX's 0.20% expense ratio.

MPNIX

BNY Mellon National Intermediate Municipal Bond Fund

DSPIX

BNY Mellon Institutional S&P 500 Stock Index Fund

Return for Risk

MPNIX vs. DSPIX — Risk / Return Rank

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

DSPIX

DSPIX Risk / Return Rank: 45
DSPIX Sharpe Ratio Rank: 41
DSPIX Sortino Ratio Rank: 44
DSPIX Omega Ratio Rank: 48
DSPIX Calmar Ratio Rank: 41
DSPIX Martin Ratio Rank: 52

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.

MPNIX vs. DSPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BNY Mellon National Intermediate Municipal Bond Fund (MPNIX) and BNY Mellon Institutional S&P 500 Stock Index Fund (DSPIX). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	MPNIX	DSPIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	0.83	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.67	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.73	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.55	—

Correlation

The correlation between MPNIX and DSPIX is -0.09. This indicates that the assets' prices tend to move in opposite directions. Negative correlation can be particularly beneficial for diversification and risk management, as one asset may offset the losses of the other during market fluctuations.

Dividends

MPNIX vs. DSPIX - Dividend Comparison

MPNIX's dividend yield for the trailing twelve months is around 1.19%, less than DSPIX's 36.45% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MPNIX BNY Mellon National Intermediate Municipal Bond Fund	1.19%	3.76%	2.76%	2.09%	1.86%	2.09%	2.42%	2.65%	2.54%	2.33%	3.29%	2.67%
DSPIX BNY Mellon Institutional S&P 500 Stock Index Fund	36.45%	33.86%	27.60%	27.46%	18.33%	12.91%	1.15%	5.01%	6.33%	2.53%	2.91%	2.63%

Drawdowns

Drawdown Indicators

	MPNIX	DSPIX	Difference
Max Drawdown Largest peak-to-trough decline	—	-55.32%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-12.15%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-24.62%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-33.79%	—
Current Drawdown Current decline from peak	—	-8.92%	—
Average Drawdown Average peak-to-trough decline	—	-9.32%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	2.50%	—

Volatility

Volatility by Period

	MPNIX	DSPIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	4.24%	—
Volatility (6M) Calculated over the trailing 6-month period	—	9.11%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	18.18%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	16.89%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	17.99%	—