DISSX vs. MPSTX

Last updated Apr 2, 2026

Compare and contrast key facts about BNY Mellon Smallcap Stock Index Fund (DISSX) and BNY Mellon National Short Term Municipal Bond Fund (MPSTX).

DISSX is managed by BNY Mellon. It was launched on Jun 30, 1997. MPSTX is managed by BNY Mellon. It was launched on Oct 1, 2000.

Performance

DISSX vs. MPSTX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BNY Mellon Smallcap Stock Index Fund (DISSX) and BNY Mellon National Short Term Municipal Bond Fund (MPSTX). The values are adjusted to include any dividend payments, if applicable.

DISSX vs. MPSTX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DISSX BNY Mellon Smallcap Stock Index Fund	3.43%	5.41%	6.87%	14.24%	-16.71%	26.41%	10.92%	22.28%	-8.30%	12.40%
MPSTX BNY Mellon National Short Term Municipal Bond Fund	100.63%	4.68%	2.87%	3.22%	-2.83%	0.06%	1.94%	3.05%	1.25%	1.23%

Returns By Period

DISSX

• 1D: 2.83%
• 1M: -4.74%
• YTD: 3.43%
• 6M: 4.70%
• 1Y: 19.56%
• 3Y*: 9.12%
• 5Y*: 3.15%
• 10Y*: 9.14%

MPSTX

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

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

DISSX vs. MPSTX - Expense Ratio Comparison

DISSX has a 0.50% expense ratio, which is higher than MPSTX's 0.44% expense ratio.

DISSX

BNY Mellon Smallcap Stock Index Fund

MPSTX

BNY Mellon National Short Term Municipal Bond Fund

Return for Risk

DISSX vs. MPSTX — Risk / Return Rank

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

DISSX

DISSX Risk / Return Rank: 44
DISSX Sharpe Ratio Rank: 38
DISSX Sortino Ratio Rank: 42
DISSX Omega Ratio Rank: 35
DISSX Calmar Ratio Rank: 52
DISSX Martin Ratio Rank: 53

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.

DISSX vs. MPSTX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BNY Mellon Smallcap Stock Index Fund (DISSX) and BNY Mellon National Short Term Municipal Bond Fund (MPSTX). 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.

	DISSX	MPSTX	Difference
Sharpe ratio Return per unit of total volatility	0.87	—	—
Sortino ratio Return per unit of downside risk	1.37	—	—
Omega ratio Gain probability vs. loss probability	1.18	—	—
Calmar ratio Return relative to maximum drawdown	1.37	—	—
Martin ratio Return relative to average drawdown	5.52	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	DISSX	MPSTX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.87	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.15	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.40	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.39	—	—

Correlation

The correlation between DISSX and MPSTX is -0.03. 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

DISSX vs. MPSTX - Dividend Comparison

DISSX's dividend yield for the trailing twelve months is around 14.91%, more than MPSTX's 1.13% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DISSX BNY Mellon Smallcap Stock Index Fund	14.91%	15.42%	14.79%	8.20%	13.87%	10.72%	7.61%	8.35%	13.18%	7.40%	6.49%	11.30%
MPSTX BNY Mellon National Short Term Municipal Bond Fund	1.13%	3.53%	2.43%	1.39%	1.02%	0.91%	1.22%	1.67%	1.24%	0.99%	0.91%	0.92%

Drawdowns

Drawdown Indicators

	DISSX	MPSTX	Difference
Max Drawdown Largest peak-to-trough decline	-58.30%	—	—
Max Drawdown (1Y) Largest decline over 1 year	-14.96%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-29.02%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-44.45%	—	—
Current Drawdown Current decline from peak	-5.80%	—	—
Average Drawdown Average peak-to-trough decline	-9.62%	—	—
Ulcer Index Depth and duration of drawdowns from previous peaks	3.70%	—	—

Volatility

Volatility by Period

	DISSX	MPSTX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.31%	—	—
Volatility (6M) Calculated over the trailing 6-month period	13.08%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	22.80%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.60%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.16%	—	—