MYMG vs. ZMUN

Last updated Jun 4, 2026

MYMG (State Street My2027 Municipal Bond ETF) and ZMUN (F/m Ultrashort Tax-Free Municipal ETF) are both Municipal Bonds funds. MYMG is actively managed, while ZMUN is passively managed. At a 0.26 correlation, their price movements are largely independent. MYMG charges 0.20%/yr vs 0.30%/yr for ZMUN.

Performance

MYMG vs. ZMUN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street My2027 Municipal Bond ETF (MYMG) 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, MYMG achieves a 1.20% return, which is significantly lower than ZMUN's 1.57% return.

MYMG

• 1D: 0.02%
• 1M: 0.37%
• YTD: 1.20%
• 6M: 1.48%
• 1Y: 3.89%
• 3Y*: —
• 5Y*: —
• 10Y*: —

ZMUN

• 1D: -0.02%
• 1M: 0.21%
• YTD: 1.57%
• 6M: 1.86%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MYMG vs. ZMUN - Yearly Performance Comparison

	2026 (YTD)	2025
MYMG State Street My2027 Municipal Bond ETF	1.20%	0.78%
ZMUN F/m Ultrashort Tax-Free Municipal ETF	1.57%	0.73%

Correlation

The correlation between MYMG and ZMUN is 0.26, 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	0.26

Return for Risk

MYMG vs. ZMUN — Risk / Return Rank

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

MYMG

MYMG Risk / Return Rank: 97
MYMG Sharpe Ratio Rank: 97
MYMG Sortino Ratio Rank: 98
MYMG Omega Ratio Rank: 98
MYMG Calmar Ratio Rank: 97
MYMG Martin Ratio Rank: 96

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.

MYMG vs. ZMUN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street My2027 Municipal Bond ETF (MYMG) 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.

	MYMG	ZMUN	Difference
Sharpe ratio: Return per unit of total volatility	4.80	—	—
Sortino ratio: Return per unit of downside risk	8.05	—	—
Omega ratio: Gain probability vs. loss probability	2.38	—	—
Calmar ratio: Return relative to maximum drawdown	10.94	—	—
Martin ratio: Return relative to average drawdown	36.03	—	—
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

	MYMG	ZMUN	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	4.80	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.07	6.46	-5.38

Drawdowns

MYMG vs. ZMUN - Drawdown Comparison

The maximum MYMG drawdown since its inception was -2.31%, which is greater than ZMUN's maximum drawdown of -0.09%. Use the drawdown chart below to compare losses from any high point for MYMG and ZMUN.

Drawdown Indicators

	MYMG	ZMUN	Difference
Max Drawdown Largest peak-to-trough decline	-2.31%	-0.09%	-2.22%
Max Drawdown (1Y) Largest decline over 1 year	-0.36%	—	—
Current Drawdown Current decline from peak	0.00%	-0.02%	+0.02%
Average Drawdown Average peak-to-trough decline	-0.33%	-0.01%	-0.32%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.11%	—	—

Volatility

Volatility by Period

	MYMG	ZMUN	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.18%	—	—
Volatility (6M) Calculated over the trailing 6-month period	0.56%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	0.81%	0.54%	+0.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.03%	0.54%	+1.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.03%	0.54%	+1.49%

MYMG vs. ZMUN - Expense Ratio Comparison

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

Dividends

MYMG vs. ZMUN - Dividend Comparison

MYMG's dividend yield for the trailing twelve months is around 2.88%, more than ZMUN's 2.28% yield.

Position	TTM	2025	2024
MYMG State Street My2027 Municipal Bond ETF	2.88%	3.03%	0.89%
ZMUN F/m Ultrashort Tax-Free Municipal ETF	2.28%	0.70%	0.00%

Frequently Asked Questions

Can I hold both MYMG and ZMUN in my portfolio?

MYMG and ZMUN have a correlation of 0.26, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, MYMG or ZMUN?

On fees, MYMG 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, MYMG or ZMUN?

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

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

MYMG has the higher dividend yield at 2.88%, compared with 2.28% for ZMUN.

What is the main difference between MYMG and ZMUN?

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