CMF vs. MYMG
CMF (iShares California Muni Bond ETF) and MYMG (State Street My2027 Municipal Bond ETF) are both Municipal Bonds funds. CMF is passively managed, while MYMG is actively managed. Over the past year, CMF returned 6.61% vs 3.74% for MYMG. A 0.72 correlation means they provide meaningful diversification when combined. CMF charges 0.25%/yr vs 0.20%/yr for MYMG.
Performance
CMF vs. MYMG - Performance Comparison
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Returns By Period
In the year-to-date period, CMF achieves a 1.28% return, which is significantly lower than MYMG's 1.36% return.
CMF
- 1D
- -0.02%
- 1M
- 1.39%
- YTD
- 1.28%
- 6M
- 1.51%
- 1Y
- 6.61%
- 3Y*
- 3.14%
- 5Y*
- 0.75%
- 10Y*
- 1.66%
MYMG
- 1D
- 0.00%
- 1M
- 0.43%
- YTD
- 1.36%
- 6M
- 1.46%
- 1Y
- 3.74%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
CMF vs. MYMG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
CMF iShares California Muni Bond ETF | 1.28% | 3.36% | -0.35% |
MYMG State Street My2027 Municipal Bond ETF | 1.36% | 2.64% | -0.26% |
Correlation
The correlation between CMF and MYMG is 0.62, 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 | 0.62 |
Correlation (All Time) Calculated using the full available price history since Sep 24, 2024 | 0.72 |
The correlation between CMF and MYMG shifts across timeframes, from 0.62 (1 year) to 0.72 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
CMF vs. MYMG — Risk / Return Rank
CMF
MYMG
CMF vs. MYMG - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares California Muni Bond ETF (CMF) and State Street My2027 Municipal Bond ETF (MYMG). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| CMF | MYMG | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.27 | ||
| Sortino ratioReturn per unit of downside risk | -4.36 | ||
| Omega ratioGain probability vs. loss probability | 1.54 | 2.36 | -0.81 |
| Calmar ratioReturn relative to maximum drawdown | 2.28 | 10.52 | -8.24 |
| Martin ratioReturn relative to average drawdown | 7.50 | 34.69 | -27.19 |
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Drawdowns
CMF vs. MYMG - Drawdown Comparison
The maximum CMF drawdown since its inception was -16.45%, which is greater than MYMG's maximum drawdown of -2.31%. Use the drawdown chart below to compare losses from any high point for CMF and MYMG.
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Drawdown Indicators
| CMF | MYMG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.45% | -2.31% | -14.14% |
Max Drawdown (1Y)Largest decline over 1 year | -2.91% | -0.36% | -2.55% |
Max Drawdown (3Y)Largest decline over 3 years | -5.22% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -12.45% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -14.57% | — | — |
Current DrawdownCurrent decline from peak | -0.61% | 0.00% | -0.61% |
Average DrawdownAverage peak-to-trough decline | -4.76% | -0.32% | -4.44% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.88% | 0.11% | +0.77% |
Volatility
CMF vs. MYMG - Volatility Comparison
iShares California Muni Bond ETF (CMF) has a higher volatility of 0.71% compared to State Street My2027 Municipal Bond ETF (MYMG) at 0.20%. This indicates that CMF's price experiences larger fluctuations and is considered to be riskier than MYMG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CMF | MYMG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.71% | 0.20% | +0.51% |
Volatility (6M)Calculated over the trailing 6-month period | 2.17% | 0.59% | +1.58% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.77% | 0.81% | +1.96% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.19% | 2.01% | +2.18% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.08% | 2.01% | +3.07% |
CMF vs. MYMG - Expense Ratio Comparison
CMF has a 0.25% expense ratio, which is higher than MYMG's 0.20% 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%.
Dividends
CMF vs. MYMG - Dividend Comparison
CMF's dividend yield for the trailing twelve months is around 2.94%, more than MYMG's 2.88% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CMF iShares California Muni Bond ETF | 2.94% | 2.94% | 2.78% | 2.29% | 1.91% | 1.58% | 1.80% | 2.03% | 2.17% | 2.09% | 2.21% | 2.55% |
MYMG State Street My2027 Municipal Bond ETF | 2.88% | 3.03% | 0.89% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
CMF and MYMG have a correlation of 0.62, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CMF has higher volatility (0.71%) compared to MYMG (0.20%). In terms of maximum drawdown, CMF dropped -16.45% vs MYMG's -2.31%.
On 1-year performance, CMF leads with 6.61% vs 3.74% for MYMG. On fees, MYMG is cheaper at 0.20% per year. On volatility, MYMG has been the lower-risk option at 0.20%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, CMF has performed better with a 6.61% return vs 3.74%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
MYMG is cheaper with a 0.20% expense ratio, compared with 0.25% for CMF.
CMF has the higher dividend yield at 2.94%, compared with 2.88% for MYMG.
They also come from different issuers: iShares and State Street. Their fees differ too: 0.25% for CMF and 0.20% for MYMG.
MYMG currently has the higher Sharpe Ratio (4.67 vs 2.40), 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.
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