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ETF comparison

CMF vs SUB

Both US Municipal Bond.

iShares California Muni Bond ETF · iShares Short-Term National Muni Bond ETF

Holdings overlap

Weighted by ISIN/CUSIP
3.9 %

116 positions appear in both funds. Buying equal dollars of CMF and SUB would leave roughly 3.9% of each dollar exposed to the same underlying securities.

CMF unmatched 95.6% Shared 3.9% SUB unmatched 95.9%

Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.

In CMF only
1,506 positions
Shared
116 positions
In SUB only
2,800 positions

Side by side

CMF

iShares California Muni Bond ETF

iShares · US Municipal Bond

92 composite / 100
Expense ratio
0.080%
Net assets
$4.75B
TTM yield
3.04%
Top-10 conc.
4.4%
SUB

iShares Short-Term National Muni Bond ETF

iShares · US Municipal Bond

96 composite / 100
Expense ratio
0.070%
Net assets
$11.88B
TTM yield
2.58%
Top-10 conc.
2.8%

Sub-score comparison

92
Cost
93
93
Tax efficiency
93
86
Liquidity
100
100
Concentration
100
—
Tracking quality
—
CMF sub-score SUB

Tracking quality isn't part of the composite — see what we don't score for why.

Cost difference

SUB is 1 bps cheaper than CMF. On a $100,000 position that's about $10/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 the cost calculator pre-filled with CMF vs SUB.

Top shared holdings

116 shared in total
# Holding In CMF In SUB Overlap
1 University of California 0.22% 0.25% 0.22%
2 East County Advanced Water Purification Joint Powers Authority 0.33% 0.18% 0.18%
3 California State Public Works Board 0.16% 0.14% 0.14%
4 City of Los Angeles 0.21% 0.12% 0.12%
5 San Diego Community College District 0.14% 0.12% 0.12%
6 State of California 0.18% 0.10% 0.10%
7 Los Angeles Department of Water & Power 0.12% 0.10% 0.10%
8 State of California 0.10% 0.09% 0.09%
9 State of California 0.09% 0.24% 0.09%
10 Los Angeles Unified School District 0.12% 0.09% 0.09%
11 Los Angeles Community College District 0.24% 0.09% 0.09%
12 City of Los Angeles Wastewater System 0.12% 0.09% 0.09%

Only in CMF

1,506 total
  • Los Angeles Unified School District 0.50%
  • University of California 0.49%
  • Bay Area Toll Authority 0.46%
  • California Educational Facilities Authority 0.44%
  • Los Angeles Unified School District 0.44%
  • Eastern Municipal Water District 0.44%
  • California State University 0.42%
  • University of California 0.42%
  • State of California 0.38%
  • Bay Area Toll Authority 0.37%

Only in SUB

2,800 total
  • New Jersey Economic Development Authority 0.37%
  • County of King 0.35%
  • San Antonio Water System 0.28%
  • City of Seattle 0.27%
  • State of California 0.27%
  • Empire State Development Corp. 0.25%
  • Pennsylvania Turnpike Commission 0.25%
  • New Jersey Turnpike Authority 0.25%
  • State of California 0.24%
  • District of Columbia Water & Sewer Authority 0.22%

Percentages are holdings overlap with the named fund.

Open CMF or SUB 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 methodology and 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.