FMUN vs. MMMA

Last updated Aug 5, 2026

FMUN (Fidelity Systematic Municipal Bond Index ETF) and MMMA (NYLI MacKay Muni Allocation ETF) are both Municipal Bonds funds. Both are actively managed. Their 0.67 correlation means they have sometimes moved together and sometimes differently. FMUN charges 0.05%/yr vs 0.35%/yr for MMMA.

Performance

FMUN vs. MMMA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Systematic Municipal Bond Index ETF (FMUN) and NYLI MacKay Muni Allocation ETF (MMMA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FMUN achieves a 0.55% return, which is significantly lower than MMMA's 2.85% return.

FMUN

• 1D: 0.37%
• 1M: -1.62%
• 6M: -0.38%
• YTD: 0.55%
• 1Y: 5.03%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 2.89%

MMMA

• 1D: 0.39%
• 1M: -1.14%
• 6M: 1.35%
• YTD: 2.85%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
FMUN Fidelity Systematic Municipal Bond Index ETF	$585.46K	$512.82K	$541.96K
MMMA NYLI MacKay Muni Allocation ETF	$143.96K	$107.64K	$51.93K

FMUN vs. MMMA - Yearly Performance Comparison

	2026 (YTD)	2025
FMUN Fidelity Systematic Municipal Bond Index ETF	0.55%	0.44%
MMMA NYLI MacKay Muni Allocation ETF	2.85%	0.35%

Correlation

The correlation between FMUN and MMMA is 0.67, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (All Time) Calculated using the full available price history since Dec 16, 2025	0.67

Return for Risk

FMUN vs. MMMA — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

FMUN

FMUN Risk / Return Rank: 55
FMUN Sharpe Ratio Rank: 62
FMUN Sortino Ratio Rank: 60
FMUN Omega Ratio Rank: 72
FMUN Calmar Ratio Rank: 40
FMUN Martin Ratio Rank: 40

MMMA

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

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

FMUN vs. MMMA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Systematic Municipal Bond Index ETF (FMUN) and NYLI MacKay Muni Allocation ETF (MMMA). 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.

	FMUN	MMMA	Difference
Sharpe ratio: Return per unit of total volatility	1.65	—	—
Sortino ratio: Return per unit of downside risk	2.31	—	—
Omega ratio: Gain probability vs. loss probability	1.34	—	—
Calmar ratio: Return relative to maximum drawdown	1.57	—	—
Martin ratio: Return relative to average drawdown	4.78	—	—

Drawdowns

FMUN vs. MMMA - Drawdown Comparison

The maximum FMUN drawdown since its inception was -3.83%, which is greater than MMMA's maximum drawdown of -2.79%. Use the drawdown chart below to compare losses from any high point for FMUN and MMMA.

Drawdown Indicators

	FMUN	MMMA	Difference
Max Drawdown Largest peak-to-trough decline	-3.83%	-2.79%	-1.04%
Max Drawdown (1Y) Largest decline over 1 year	-3.21%	—	—
Current Drawdown Current decline from peak	-1.78%	-1.25%	-0.53%
Average Drawdown Average peak-to-trough decline	-1.11%	-0.61%	-0.50%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.05%	—	—

Volatility

Volatility by Period

	FMUN	MMMA	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.89%	—	—
Volatility (6M) Calculated over the trailing 6-month period	2.52%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	3.06%	4.04%	-0.98%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.04%	4.04%	0.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.04%	4.04%	0.00%

FMUN vs. MMMA - Expense Ratio Comparison

FMUN has a 0.05% expense ratio, which is lower than MMMA's 0.35% expense ratio.

Dividends

FMUN vs. MMMA - Dividend Comparison

FMUN's dividend yield for the trailing twelve months is around 3.33%, more than MMMA's 2.68% yield.

Position	TTM	2025
FMUN Fidelity Systematic Municipal Bond Index ETF	3.33%	2.41%
MMMA NYLI MacKay Muni Allocation ETF	2.68%	0.17%

Frequently Asked Questions

Can I hold both FMUN and MMMA in my portfolio?

FMUN and MMMA have a correlation of 0.67, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, FMUN or MMMA?

On fees, FMUN is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, FMUN or MMMA?

FMUN is cheaper with a 0.05% expense ratio, compared with 0.35% for MMMA.

Which ETF pays a higher dividend yield, FMUN or MMMA?

FMUN has the higher dividend yield at 3.33%, compared with 2.68% for MMMA.

What is the main difference between FMUN and MMMA?

They also come from different issuers: Fidelity and NYLI. Their fees differ too: 0.05% for FMUN and 0.35% for MMMA.