GMUB vs. ZTAX

Last updated Apr 2, 2026

Compare and contrast key facts about Goldman Sachs Municipal Income ETF (GMUB) and X-Square Municipal Income Tax Free ETF (ZTAX).

GMUB and ZTAX are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. GMUB is an actively managed fund by Goldman Sachs. It was launched on Jul 23, 2024. ZTAX is an actively managed fund by X-Square. It was launched on May 18, 2023.

Performance

GMUB vs. ZTAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Goldman Sachs Municipal Income ETF (GMUB) and X-Square Municipal Income Tax Free ETF (ZTAX). The values are adjusted to include any dividend payments, if applicable.

GMUB vs. ZTAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024
GMUB Goldman Sachs Municipal Income ETF	0.32%	5.99%	1.08%
ZTAX X-Square Municipal Income Tax Free ETF	0.90%	-1.02%	1.68%

Returns By Period

In the year-to-date period, GMUB achieves a 0.32% return, which is significantly lower than ZTAX's 0.90% return.

GMUB

• 1D: 0.24%
• 1M: -1.52%
• YTD: 0.32%
• 6M: 2.04%
• 1Y: 5.64%
• 3Y*: —
• 5Y*: —
• 10Y*: —

ZTAX

• 1D: 0.00%
• 1M: 0.80%
• YTD: 0.90%
• 6M: 4.82%
• 1Y: 5.47%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

GMUB vs. ZTAX - Expense Ratio Comparison

GMUB has a 0.18% expense ratio, which is lower than ZTAX's 1.14% expense ratio.

ZTAX

X-Square Municipal Income Tax Free ETF

GMUB

Goldman Sachs Municipal Income ETF

Return for Risk

GMUB vs. ZTAX — Risk / Return Rank

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

GMUB

GMUB Risk / Return Rank: 76
GMUB Sharpe Ratio Rank: 80
GMUB Sortino Ratio Rank: 78
GMUB Omega Ratio Rank: 82
GMUB Calmar Ratio Rank: 71
GMUB Martin Ratio Rank: 66

ZTAX

ZTAX Risk / Return Rank: 19
ZTAX Sharpe Ratio Rank: 17
ZTAX Sortino Ratio Rank: 18
ZTAX Omega Ratio Rank: 20
ZTAX Calmar Ratio Rank: 22
ZTAX Martin Ratio Rank: 20

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.

GMUB vs. ZTAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Goldman Sachs Municipal Income ETF (GMUB) and X-Square Municipal Income Tax Free ETF (ZTAX). 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.

	GMUB	ZTAX	Difference
Sharpe ratio Return per unit of total volatility	1.61	0.21	+1.40
Sortino ratio Return per unit of downside risk	2.14	0.49	+1.65
Omega ratio Gain probability vs. loss probability	1.34	1.08	+0.26
Calmar ratio Return relative to maximum drawdown	2.16	0.52	+1.64
Martin ratio Return relative to average drawdown	7.71	1.39	+6.32
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GMUB vs. ZTAX - Sharpe Ratio Comparison

The current GMUB Sharpe Ratio is 1.61, which is higher than the ZTAX Sharpe Ratio of 0.21. The chart below compares the historical Sharpe Ratios of GMUB and ZTAX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	GMUB	ZTAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.61	0.21	+1.40
Sharpe Ratio (All Time) Calculated using the full available price history	1.30	0.22	+1.08

Correlation

The correlation between GMUB and ZTAX is -0.05. 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

GMUB vs. ZTAX - Dividend Comparison

GMUB's dividend yield for the trailing twelve months is around 3.20%, less than ZTAX's 4.52% yield.

	TTM	2025	2024	2023
GMUB Goldman Sachs Municipal Income ETF	3.20%	3.14%	1.46%	0.00%
ZTAX X-Square Municipal Income Tax Free ETF	4.52%	4.58%	4.55%	2.14%

Drawdowns

GMUB vs. ZTAX - Drawdown Comparison

The maximum GMUB drawdown since its inception was -3.28%, smaller than the maximum ZTAX drawdown of -15.33%. Use the drawdown chart below to compare losses from any high point for GMUB and ZTAX.

Drawdown Indicators

	GMUB	ZTAX	Difference
Max Drawdown Largest peak-to-trough decline	-3.28%	-15.33%	+12.05%
Max Drawdown (1Y) Largest decline over 1 year	-2.79%	-10.47%	+7.68%
Current Drawdown Current decline from peak	-1.67%	-5.92%	+4.25%
Average Drawdown Average peak-to-trough decline	-0.60%	-6.87%	+6.27%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.78%	3.92%	-3.14%

Volatility

GMUB vs. ZTAX - Volatility Comparison

The current volatility for Goldman Sachs Municipal Income ETF (GMUB) is 1.11%, while X-Square Municipal Income Tax Free ETF (ZTAX) has a volatility of 9.47%. This indicates that GMUB experiences smaller price fluctuations and is considered to be less risky than ZTAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GMUB	ZTAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.11%	9.47%	-8.36%
Volatility (6M) Calculated over the trailing 6-month period	1.89%	24.05%	-22.16%
Volatility (1Y) Calculated over the trailing 1-year period	3.53%	25.93%	-22.40%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.39%	27.25%	-23.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.39%	27.25%	-23.86%