MYMJ vs. ZMUN

Last updated Jun 5, 2026

MYMJ (State Street My2030 Municipal Bond ETF) and ZMUN (F/m Ultrashort Tax-Free Municipal ETF) are both Municipal Bonds funds. MYMJ is actively managed, while ZMUN is passively managed. At a 0.17 correlation, their price movements are largely independent. MYMJ charges 0.20%/yr vs 0.30%/yr for ZMUN.

Performance

MYMJ vs. ZMUN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street My2030 Municipal Bond ETF (MYMJ) and F/m Ultrashort Tax-Free Municipal ETF (ZMUN). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MYMJ achieves a 1.06% return, which is significantly lower than ZMUN's 1.61% return.

MYMJ

• 1D: 0.06%
• 1M: 0.42%
• YTD: 1.06%
• 6M: 1.41%
• 1Y: 5.13%
• 3Y*: —
• 5Y*: —
• 10Y*: —

ZMUN

• 1D: 0.04%
• 1M: 0.31%
• YTD: 1.61%
• 6M: 1.88%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MYMJ vs. ZMUN - Yearly Performance Comparison

	2026 (YTD)	2025
MYMJ State Street My2030 Municipal Bond ETF	1.06%	1.25%
ZMUN F/m Ultrashort Tax-Free Municipal ETF	1.61%	0.73%

Correlation

The correlation between MYMJ and ZMUN is 0.17, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 1, 2025	0.17

Return for Risk

MYMJ vs. ZMUN — Risk / Return Rank

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

MYMJ

MYMJ Risk / Return Rank: 81
MYMJ Sharpe Ratio Rank: 91
MYMJ Sortino Ratio Rank: 94
MYMJ Omega Ratio Rank: 96
MYMJ Calmar Ratio Rank: 65
MYMJ Martin Ratio Rank: 60

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.

MYMJ vs. ZMUN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street My2030 Municipal Bond ETF (MYMJ) and F/m Ultrashort Tax-Free Municipal ETF (ZMUN). 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.

	MYMJ	ZMUN	Difference
Sharpe ratio: Return per unit of total volatility	3.07	—	—
Sortino ratio: Return per unit of downside risk	4.85	—	—
Omega ratio: Gain probability vs. loss probability	1.75	—	—
Calmar ratio: Return relative to maximum drawdown	3.17	—	—
Martin ratio: Return relative to average drawdown	10.54	—	—
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

	MYMJ	ZMUN	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.07	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.86	6.54	-5.68

Drawdowns

MYMJ vs. ZMUN - Drawdown Comparison

The maximum MYMJ drawdown since its inception was -3.11%, which is greater than ZMUN's maximum drawdown of -0.09%. Use the drawdown chart below to compare losses from any high point for MYMJ and ZMUN.

Drawdown Indicators

	MYMJ	ZMUN	Difference
Max Drawdown Largest peak-to-trough decline	-3.11%	-0.09%	-3.02%
Max Drawdown (1Y) Largest decline over 1 year	-1.63%	—	—
Current Drawdown Current decline from peak	-0.45%	0.00%	-0.45%
Average Drawdown Average peak-to-trough decline	-0.70%	-0.01%	-0.69%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.49%	—	—

Volatility

Volatility by Period

	MYMJ	ZMUN	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.46%	—	—
Volatility (6M) Calculated over the trailing 6-month period	1.17%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	1.69%	0.54%	+1.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.90%	0.54%	+2.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.90%	0.54%	+2.36%

MYMJ vs. ZMUN - Expense Ratio Comparison

MYMJ has a 0.20% expense ratio, which is lower than ZMUN's 0.30% expense ratio.

Dividends

MYMJ vs. ZMUN - Dividend Comparison

MYMJ's dividend yield for the trailing twelve months is around 2.96%, more than ZMUN's 2.28% yield.

Position	TTM	2025	2024
MYMJ State Street My2030 Municipal Bond ETF	2.96%	3.02%	0.89%
ZMUN F/m Ultrashort Tax-Free Municipal ETF	2.28%	0.70%	0.00%

Frequently Asked Questions

Can I hold both MYMJ and ZMUN in my portfolio?

MYMJ and ZMUN have a correlation of 0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, MYMJ or ZMUN?

On fees, MYMJ is cheaper at 0.20% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, MYMJ or ZMUN?

MYMJ is cheaper with a 0.20% expense ratio, compared with 0.30% for ZMUN.

Which ETF pays a higher dividend yield, MYMJ or ZMUN?

MYMJ has the higher dividend yield at 2.96%, compared with 2.28% for ZMUN.

What is the main difference between MYMJ and ZMUN?

They also come from different issuers: State Street and F/m Investments. Their fees differ too: 0.20% for MYMJ and 0.30% for ZMUN.