CMF vs. GUMI
CMF (iShares California Muni Bond ETF) and GUMI (Goldman Sachs Ultra Short Municipal Income ETF) are both Municipal Bonds funds. CMF is passively managed, while GUMI is actively managed. Over the past year, CMF returned 6.61% vs 3.17% for GUMI. At a 0.34 correlation, their price movements are largely independent. CMF charges 0.25%/yr vs 0.16%/yr for GUMI.
Performance
CMF vs. GUMI - Performance Comparison
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Returns By Period
The year-to-date returns for both stocks are quite close, with CMF having a 1.28% return and GUMI slightly lower at 1.27%.
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%
GUMI
- 1D
- -0.01%
- 1M
- 0.30%
- YTD
- 1.27%
- 6M
- 1.37%
- 1Y
- 3.17%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
CMF vs. GUMI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
CMF iShares California Muni Bond ETF | 1.28% | 3.36% | 1.63% |
GUMI Goldman Sachs Ultra Short Municipal Income ETF | 1.27% | 3.39% | 1.57% |
Correlation
The correlation between CMF and GUMI is 0.21, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.21 |
Correlation (All Time) Calculated using the full available price history since Jul 25, 2024 | 0.34 |
The correlation between CMF and GUMI shifts across timeframes, from 0.21 (1 year) to 0.34 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
CMF vs. GUMI — Risk / Return Rank
CMF
GUMI
CMF vs. GUMI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares California Muni Bond ETF (CMF) and Goldman Sachs Ultra Short Municipal Income ETF (GUMI). 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 | GUMI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.58 | ||
| Sortino ratioReturn per unit of downside risk | -1.42 | ||
| Omega ratioGain probability vs. loss probability | 1.54 | 1.66 | -0.11 |
| Calmar ratioReturn relative to maximum drawdown | 2.28 | 8.90 | -6.62 |
| Martin ratioReturn relative to average drawdown | 7.50 | 38.52 | -31.02 |
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Drawdowns
CMF vs. GUMI - Drawdown Comparison
The maximum CMF drawdown since its inception was -16.45%, which is greater than GUMI's maximum drawdown of -0.48%. Use the drawdown chart below to compare losses from any high point for CMF and GUMI.
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Drawdown Indicators
| CMF | GUMI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.45% | -0.48% | -15.97% |
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% | -0.01% | -0.60% |
Average DrawdownAverage peak-to-trough decline | -4.76% | -0.05% | -4.71% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.88% | 0.08% | +0.80% |
Volatility
CMF vs. GUMI - Volatility Comparison
iShares California Muni Bond ETF (CMF) has a higher volatility of 0.71% compared to Goldman Sachs Ultra Short Municipal Income ETF (GUMI) at 0.21%. This indicates that CMF's price experiences larger fluctuations and is considered to be riskier than GUMI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CMF | GUMI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.71% | 0.21% | +0.50% |
Volatility (6M)Calculated over the trailing 6-month period | 2.17% | 0.51% | +1.66% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.77% | 1.07% | +1.70% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.19% | 0.98% | +3.21% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.08% | 0.98% | +4.10% |
CMF vs. GUMI - Expense Ratio Comparison
CMF has a 0.25% expense ratio, which is higher than GUMI's 0.16% 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. GUMI - Dividend Comparison
CMF's dividend yield for the trailing twelve months is around 2.94%, more than GUMI's 2.77% 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% |
GUMI Goldman Sachs Ultra Short Municipal Income ETF | 2.77% | 2.95% | 1.37% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
CMF and GUMI have a correlation of 0.21, 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 GUMI (0.21%). In terms of maximum drawdown, CMF dropped -16.45% vs GUMI's -0.48%.
On 1-year performance, CMF leads with 6.61% vs 3.17% for GUMI. On fees, GUMI is cheaper at 0.16% per year. On volatility, GUMI has been the lower-risk option at 0.21%. 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 3.17%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
GUMI is cheaper with a 0.16% expense ratio, compared with 0.25% for CMF.
CMF has the higher dividend yield at 2.94%, compared with 2.77% for GUMI.
They also come from different issuers: iShares and Goldman Sachs. Their fees differ too: 0.25% for CMF and 0.16% for GUMI.
GUMI currently has the higher Sharpe Ratio (2.98 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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