ETF comparison

MUB vs SCMB

Both US Municipal Bond.

iShares National Muni Bond ETF · Schwab Municipal Bond ETF

Holdings overlap

Weighted by ISIN/CUSIP
20.8 %

2,197 positions appear in both funds. Buying equal dollars of MUB and SCMB would leave roughly 20.8% of each dollar exposed to the same underlying securities.

MUB only 78.7% Shared 20.8% SCMB only 78.3%
In MUB only
4,067 positions
Shared
2,197 positions
In SCMB only
4,040 positions

Side by side

MUB

iShares National Muni Bond ETF

iShares · US Municipal Bond

97 composite / 100
Expense ratio
0.050%
Net assets
$45.82B
TTM yield
3.19%
Top-10 conc.
2.0%
SCMB

Schwab Municipal Bond ETF

Schwab · US Municipal Bond

93 composite / 100
Expense ratio
0.030%
Net assets
$3.98B
TTM yield
3.54%
Top-10 conc.
2.3%

Sub-score comparison

95
Cost
97
93
Tax efficiency
93
100
Liquidity
83
100
Concentration
100
Tracking quality
MUB sub-score SCMB

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

Cost difference

SCMB is 2 bps cheaper than MUB. On a $100,000 position that's about $20/yr more in fees for MUB.

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 MUB vs SCMB.

Top shared holdings

2,197 shared in total
# Holding In MUB In SCMB Overlap
1 State of California 0.13% 0.16% 0.13%
2 Chicago Transit Authority Sales Tax Receipts Fund 0.12% 0.15% 0.12%
3 Ohio State University (The) 0.14% 0.10% 0.10%
4 New Jersey Transportation Trust Fund Authority 0.10% 0.12% 0.10%
5 State of Maryland 0.09% 0.17% 0.09%
6 Commonwealth of Massachusetts 0.09% 0.10% 0.09%
7 New York State Dormitory Authority 0.08% 0.08% 0.08%
8 State of Washington 0.08% 0.12% 0.08%
9 University of California 0.07% 0.11% 0.07%
10 Commonwealth of Pennsylvania 0.07% 0.12% 0.07%
11 California State Public Works Board 0.07% 0.17% 0.07%
12 Oklahoma Turnpike Authority 0.07% 0.08% 0.07%

Only in MUB

4,067 total
  • BlackRock Liquidity Funds 0.56%
  • Board of Regents of the University of Texas System 0.21%
  • Connecticut State Health & Educational Facilities Authority 0.20%
  • Northwest Independent School District 0.16%
  • State of Washington 0.13%
  • Pennsylvania Turnpike Commission 0.12%
  • Washoe County School District 0.12%
  • New Jersey Educational Facilities Authority 0.12%
  • Commonwealth of Massachusetts 0.11%
  • District of Columbia 0.11%

Only in SCMB

4,040 total
  • City of New York NY 0.27%
  • Commonwealth of Massachusetts 0.25%
  • Gwinnett County School District 0.25%
  • City of New York NY 0.24%
  • Commonwealth of Pennsylvania 0.23%
  • State of California Department of Water Resources 0.22%
  • New York City Transitional Finance Authority Building Aid Revenue 0.20%
  • Gwinnett County School District 0.20%
  • Los Angeles Unified School District/CA 0.20%
  • State of Washington 0.20%

Open MUB or SCMB 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.