CGMU vs. SPMB
Compare and contrast key facts about Capital Group Municipal Income ETF (CGMU) and SPDR Portfolio Mortgage Backed Bond ETF (SPMB).
CGMU and SPMB are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. CGMU is an actively managed fund by Capital Group. It was launched on Oct 25, 2022. SPMB is a passively managed fund by State Street that tracks the performance of the Bloomberg US Aggregate Securitized - MBS. It was launched on Jan 15, 2009.
Performance
CGMU vs. SPMB - Performance Comparison
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CGMU vs. SPMB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
CGMU Capital Group Municipal Income ETF | -0.02% | 5.19% | 2.64% | 6.76% | 4.53% |
SPMB SPDR Portfolio Mortgage Backed Bond ETF | 0.51% | 8.29% | 1.35% | 5.09% | 2.75% |
Returns By Period
In the year-to-date period, CGMU achieves a -0.02% return, which is significantly lower than SPMB's 0.51% return.
CGMU
- 1D
- 0.11%
- 1M
- -2.27%
- YTD
- -0.02%
- 6M
- 1.20%
- 1Y
- 4.71%
- 3Y*
- 3.94%
- 5Y*
- —
- 10Y*
- —
SPMB
- 1D
- 0.31%
- 1M
- -1.58%
- YTD
- 0.51%
- 6M
- 1.98%
- 1Y
- 5.73%
- 3Y*
- 4.11%
- 5Y*
- 0.37%
- 10Y*
- 1.29%
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CGMU vs. SPMB - Expense Ratio Comparison
CGMU has a 0.27% expense ratio, which is higher than SPMB's 0.04% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Return for Risk
CGMU vs. SPMB — Risk / Return Rank
CGMU
SPMB
CGMU vs. SPMB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Capital Group Municipal Income ETF (CGMU) and SPDR Portfolio Mortgage Backed Bond ETF (SPMB). 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.
| CGMU | SPMB | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.45 | 1.18 | +0.27 |
Sortino ratioReturn per unit of downside risk | 1.86 | 1.69 | +0.17 |
Omega ratioGain probability vs. loss probability | 1.33 | 1.21 | +0.11 |
Calmar ratioReturn relative to maximum drawdown | 1.73 | 2.01 | -0.27 |
Martin ratioReturn relative to average drawdown | 5.83 | 5.76 | +0.07 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| CGMU | SPMB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.45 | 1.18 | +0.27 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 0.05 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.17 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.60 | 0.34 | +1.26 |
Correlation
The correlation between CGMU and SPMB is 0.71, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
CGMU vs. SPMB - Dividend Comparison
CGMU's dividend yield for the trailing twelve months is around 3.38%, less than SPMB's 4.02% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CGMU Capital Group Municipal Income ETF | 3.38% | 3.32% | 3.21% | 3.08% | 0.49% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SPMB SPDR Portfolio Mortgage Backed Bond ETF | 3.72% | 3.98% | 3.76% | 3.21% | 2.98% | 2.59% | 2.95% | 3.24% | 3.36% | 3.13% | 2.99% | 3.05% |
Drawdowns
CGMU vs. SPMB - Drawdown Comparison
The maximum CGMU drawdown since its inception was -4.11%, smaller than the maximum SPMB drawdown of -18.03%. Use the drawdown chart below to compare losses from any high point for CGMU and SPMB.
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Drawdown Indicators
| CGMU | SPMB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -4.11% | -18.03% | +13.92% |
Max Drawdown (1Y)Largest decline over 1 year | -2.86% | -2.93% | +0.07% |
Max Drawdown (5Y)Largest decline over 5 years | — | -17.49% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -18.03% | — |
Current DrawdownCurrent decline from peak | -2.27% | -1.58% | -0.69% |
Average DrawdownAverage peak-to-trough decline | -0.81% | -2.87% | +2.06% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.85% | 1.02% | -0.17% |
Volatility
CGMU vs. SPMB - Volatility Comparison
The current volatility for Capital Group Municipal Income ETF (CGMU) is 1.11%, while SPDR Portfolio Mortgage Backed Bond ETF (SPMB) has a volatility of 1.83%. This indicates that CGMU experiences smaller price fluctuations and is considered to be less risky than SPMB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CGMU | SPMB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.11% | 1.83% | -0.72% |
Volatility (6M)Calculated over the trailing 6-month period | 1.70% | 2.77% | -1.07% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.27% | 4.88% | -1.61% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.53% | 6.73% | -3.20% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.53% | 7.59% | -4.06% |