AVMU vs. ZMUN

Last updated Jun 3, 2026

AVMU (Avantis Core Municipal Fixed Income ETF) and ZMUN (F/m Ultrashort Tax-Free Municipal ETF) are both Municipal Bonds funds. AVMU is actively managed, while ZMUN is passively managed. At a 0.09 correlation, their price movements are largely independent. AVMU charges 0.15%/yr vs 0.30%/yr for ZMUN.

Performance

AVMU vs. ZMUN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Avantis Core Municipal Fixed Income ETF (AVMU) and F/m Ultrashort Tax-Free Municipal ETF (ZMUN). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with AVMU having a 1.64% return and ZMUN slightly lower at 1.59%.

AVMU

• 1D: 0.15%
• 1M: 0.42%
• YTD: 1.64%
• 6M: 2.78%
• 1Y: 8.38%
• 3Y*: 3.73%
• 5Y*: 0.97%
• 10Y*: —

ZMUN

• 1D: 0.07%
• 1M: 0.24%
• YTD: 1.59%
• 6M: 1.90%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

AVMU vs. ZMUN - Yearly Performance Comparison

	2026 (YTD)	2025
AVMU Avantis Core Municipal Fixed Income ETF	1.64%	2.60%
ZMUN F/m Ultrashort Tax-Free Municipal ETF	1.59%	0.73%

Correlation

The correlation between AVMU and ZMUN is 0.09, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 1, 2025	0.09

Return for Risk

AVMU vs. ZMUN — Risk / Return Rank

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

AVMU

AVMU Risk / Return Rank: 70
AVMU Sharpe Ratio Rank: 78
AVMU Sortino Ratio Rank: 86
AVMU Omega Ratio Rank: 87
AVMU Calmar Ratio Rank: 47
AVMU Martin Ratio Rank: 52

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.

AVMU vs. ZMUN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Avantis Core Municipal Fixed Income ETF (AVMU) 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.

	AVMU	ZMUN	Difference
Sharpe ratio Return per unit of total volatility	2.58	—	—
Sortino ratio Return per unit of downside risk	3.91	—	—
Omega ratio Gain probability vs. loss probability	1.55	—	—
Calmar ratio Return relative to maximum drawdown	2.39	—	—
Martin ratio Return relative to average drawdown	9.05	—	—
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

	AVMU	ZMUN	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.58	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.24	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.23	6.55	-6.32

Drawdowns

AVMU vs. ZMUN - Drawdown Comparison

The maximum AVMU drawdown since its inception was -12.41%, which is greater than ZMUN's maximum drawdown of -0.09%. Use the drawdown chart below to compare losses from any high point for AVMU and ZMUN.

Drawdown Indicators

	AVMU	ZMUN	Difference
Max Drawdown Largest peak-to-trough decline	-12.41%	-0.09%	-12.32%
Max Drawdown (1Y) Largest decline over 1 year	-3.32%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-6.38%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-12.41%	—	—
Current Drawdown Current decline from peak	-0.59%	0.00%	-0.59%
Average Drawdown Average peak-to-trough decline	-3.77%	-0.01%	-3.76%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.88%	—	—

Volatility

Volatility by Period

	AVMU	ZMUN	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.19%	—	—
Volatility (6M) Calculated over the trailing 6-month period	2.32%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	3.29%	0.54%	+2.75%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.13%	0.54%	+3.59%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.99%	0.54%	+3.45%

AVMU vs. ZMUN - Expense Ratio Comparison

AVMU has a 0.15% expense ratio, which is lower than ZMUN's 0.30% expense ratio.

Dividends

AVMU vs. ZMUN - Dividend Comparison

AVMU's dividend yield for the trailing twelve months is around 3.22%, more than ZMUN's 2.28% yield.

Position	TTM	2025	2024	2023	2022	2021
AVMU Avantis Core Municipal Fixed Income ETF	3.22%	3.50%	3.32%	2.50%	1.29%	0.77%
ZMUN F/m Ultrashort Tax-Free Municipal ETF	2.28%	0.70%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both AVMU and ZMUN in my portfolio?

AVMU and ZMUN have a correlation of 0.09, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, AVMU or ZMUN?

On fees, AVMU is cheaper at 0.15% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, AVMU or ZMUN?

AVMU is cheaper with a 0.15% expense ratio, compared with 0.30% for ZMUN.

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

AVMU has the higher dividend yield at 3.22%, compared with 2.28% for ZMUN.

What is the main difference between AVMU and ZMUN?

They also come from different issuers: American Century and F/m Investments. Their fees differ too: 0.15% for AVMU and 0.30% for ZMUN.