ETF comparison
CMFvsMUB
Both US Municipal Bond.
iShares California Muni Bond ETF · iShares National Muni Bond ETF
Holdings overlap
605 positions appear in both funds. Buying equal dollars of CMF and MUB would leave roughly9.0%of each dollar exposed to the same underlying securities.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — seewhat we don't scorefor why.
Cost difference
MUB is 3 bps cheaper than CMF. On a $100,000 position that's about $30/yr more in fees for CMF.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open thecost calculator pre-filled with CMF vs MUB.
Top shared holdings
605 shared in total| # | Holding | In CMF | In MUB | Overlap |
|---|---|---|---|---|
| 1 | East County Advanced Water Purification Joint Powers Authority | 0.33% | 0.11% | 0.11% |
| 2 | State of California | 0.17% | 0.11% | 0.11% |
| 3 | San Diego Unified School District | 0.11% | 0.10% | 0.10% |
| 4 | University of California | 0.10% | 0.09% | 0.09% |
| 5 | University of California | 0.16% | 0.08% | 0.08% |
| 6 | Foothill-Eastern Transportation Corridor Agency | 0.29% | 0.08% | 0.08% |
| 7 | State of California | 0.10% | 0.08% | 0.08% |
| 8 | Southern California Public Power Authority | 0.15% | 0.07% | 0.07% |
| 9 | University of California | 0.16% | 0.07% | 0.07% |
| 10 | Los Angeles Unified School District | 0.07% | 0.09% | 0.07% |
| 11 | State of California | 0.19% | 0.06% | 0.06% |
| 12 | City of Los Angeles | 0.21% | 0.06% | 0.06% |
Only in CMF
1,018 total- University of California0.49%
- Bay Area Toll Authority0.46%
- California Educational Facilities Authority0.44%
- Eastern Municipal Water District0.44%
- Bay Area Toll Authority0.37%
- Anaheim Housing & Public Improvements Authority0.33%
- San Mateo County Transit District Sales Tax0.32%
- Bay Area Toll Authority0.29%
- San Francisco City & County Public Utilities Commission Wastewater0.28%
- University of California0.27%
Only in MUB
6,049 total- Board of Regents of the University of Texas System0.19%
- New York State Thruway Authority0.15%
- San Antonio Water System0.14%
- Triborough Bridge & Tunnel Authority0.14%
- New York City Transitional Finance Authority Future Tax Secured0.13%
- New York State Dormitory Authority0.13%
- Ohio State University (The)0.13%
- Houston Higher Education Finance Corp.0.13%
- Northwest Independent School District0.13%
- State of New Jersey0.13%
Open CMF or MUB at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodologyand funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions matched on ISIN (CUSIP fallback). Methodology: see/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.