FMUB vs. CA

Last updated Jun 4, 2026

FMUB (Fidelity Municipal Bond Opportunities ETF) and CA (Xtrackers California Municipal Bond ETF) are both Municipal Bonds funds. FMUB is actively managed, while CA is passively managed. Over the past year, FMUB returned 7.69% vs 6.67% for CA. At a 0.48 correlation, their price movements are largely independent. FMUB charges 0.30%/yr vs 0.07%/yr for CA.

Performance

FMUB vs. CA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Municipal Bond Opportunities ETF (FMUB) and Xtrackers California Municipal Bond ETF (CA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FMUB achieves a 1.89% return, which is significantly higher than CA's 1.20% return.

FMUB

• 1D: -0.02%
• 1M: 0.78%
• YTD: 1.89%
• 6M: 2.13%
• 1Y: 7.69%
• 3Y*: —
• 5Y*: —
• 10Y*: —

CA

• 1D: 0.00%
• 1M: 0.38%
• YTD: 1.20%
• 6M: 1.44%
• 1Y: 6.67%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FMUB vs. CA - Yearly Performance Comparison

	2026 (YTD)	2025
FMUB Fidelity Municipal Bond Opportunities ETF	1.89%	6.63%
CA Xtrackers California Municipal Bond ETF	1.20%	4.23%

Correlation

The correlation between FMUB and CA is 0.56, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.56
Correlation (All Time) Calculated using the full available price history since Apr 8, 2025	0.48

The correlation between FMUB and CA has been stable across timeframes, ranging from 0.48 to 0.56 - a consistent structural relationship.

Return for Risk

FMUB vs. CA — Risk / Return Rank

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

FMUB

FMUB Risk / Return Rank: 80
FMUB Sharpe Ratio Rank: 87
FMUB Sortino Ratio Rank: 90
FMUB Omega Ratio Rank: 92
FMUB Calmar Ratio Rank: 62
FMUB Martin Ratio Rank: 67

CA

CA Risk / Return Rank: 73
CA Sharpe Ratio Rank: 78
CA Sortino Ratio Rank: 85
CA Omega Ratio Rank: 90
CA Calmar Ratio Rank: 53
CA Martin Ratio Rank: 56

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.

FMUB vs. CA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Municipal Bond Opportunities ETF (FMUB) and Xtrackers California Municipal Bond ETF (CA). 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.

	FMUB	CA	Difference
Sharpe ratio: Return per unit of total volatility	2.90	2.54	+0.36
Sortino ratio: Return per unit of downside risk	4.26	3.84	+0.43
Omega ratio: Gain probability vs. loss probability	1.63	1.58	+0.04
Calmar ratio: Return relative to maximum drawdown	3.10	2.61	+0.49
Martin ratio: Return relative to average drawdown	12.33	9.84	+2.49
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FMUB vs. CA - Sharpe Ratio Comparison

The current FMUB Sharpe Ratio is 2.90, which is comparable to the CA Sharpe Ratio of 2.54. The chart below compares the historical Sharpe Ratios of FMUB and CA, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	FMUB	CA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.90	2.54	+0.36
Sharpe Ratio (All Time) Calculated using the full available price history	2.30	0.67	+1.63

Drawdowns

FMUB vs. CA - Drawdown Comparison

The maximum FMUB drawdown since its inception was -2.49%, smaller than the maximum CA drawdown of -5.24%. Use the drawdown chart below to compare losses from any high point for FMUB and CA.

Drawdown Indicators

	FMUB	CA	Difference
Max Drawdown Largest peak-to-trough decline	-2.49%	-5.24%	+2.75%
Max Drawdown (1Y) Largest decline over 1 year	-2.49%	-2.57%	+0.08%
Current Drawdown Current decline from peak	-0.10%	-0.75%	+0.65%
Average Drawdown Average peak-to-trough decline	-0.38%	-1.27%	+0.89%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.63%	0.68%	-0.05%

Volatility

FMUB vs. CA - Volatility Comparison

Fidelity Municipal Bond Opportunities ETF (FMUB) has a higher volatility of 0.87% compared to Xtrackers California Municipal Bond ETF (CA) at 0.31%. This indicates that FMUB's price experiences larger fluctuations and is considered to be riskier than CA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FMUB	CA	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.87%	0.31%	+0.56%
Volatility (6M) Calculated over the trailing 6-month period	1.99%	1.83%	+0.16%
Volatility (1Y) Calculated over the trailing 1-year period	2.67%	2.64%	+0.03%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.25%	3.99%	-0.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.25%	3.99%	-0.74%

FMUB vs. CA - Expense Ratio Comparison

FMUB has a 0.30% expense ratio, which is higher than CA's 0.07% expense ratio.

Dividends

FMUB vs. CA - Dividend Comparison

FMUB's dividend yield for the trailing twelve months is around 3.42%, more than CA's 2.96% yield.

Position	TTM	2025	2024
CA Xtrackers California Municipal Bond ETF	2.96%	3.14%	3.03%
FMUB Fidelity Municipal Bond Opportunities ETF	3.42%	2.63%	0.00%

Frequently Asked Questions

Can I hold both FMUB and CA in my portfolio?

FMUB and CA have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FMUB or CA?

FMUB has higher volatility (0.87%) compared to CA (0.31%). In terms of maximum drawdown, FMUB dropped -2.49% vs CA's -5.24%.

Which ETF is better, FMUB or CA?

On 1-year performance, FMUB leads with 7.69% vs 6.67% for CA. On fees, CA is cheaper at 0.07% per year. On volatility, CA has been the lower-risk option at 0.31%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, FMUB or CA?

Over the 1-year period, FMUB has performed better with a 7.69% return vs 6.67%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, FMUB or CA?

CA is cheaper with a 0.07% expense ratio, compared with 0.30% for FMUB.

Which ETF pays a higher dividend yield, FMUB or CA?

FMUB has the higher dividend yield at 3.42%, compared with 2.96% for CA.

What is the main difference between FMUB and CA?

They also come from different issuers: Fidelity and Xtrackers. Their fees differ too: 0.30% for FMUB and 0.07% for CA.

Which has better risk-adjusted returns?

FMUB currently has the higher Sharpe Ratio (2.90 vs 2.54), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.