Skip to main content

ETF comparison

JMST vs MUB

Both US Municipal Bond.

JPMorgan Ultra-Short Municipal Income ETF · iShares National Muni Bond ETF

Holdings overlap

Weighted by ISIN/CUSIP
1.1 %

173 positions appear in both funds. Buying equal dollars of JMST and MUB would leave roughly 1.1% of each dollar exposed to the same underlying securities.

JMST unmatched 95.5% Shared 1.1% MUB unmatched 97.1%

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 JMST only
1,717 positions
Shared
173 positions
In MUB only
6,480 positions

Side by side

JMST

JPMorgan Ultra-Short Municipal Income ETF

JPMorgan · US Municipal Bond

90 composite / 100
Expense ratio
0.18%
Net assets
$7.62B
TTM yield
2.55%
Top-10 conc.
7.7%
MUB

iShares National Muni Bond ETF

iShares · US Municipal Bond

97 composite / 100
Expense ratio
0.050%
Net assets
$46.62B
TTM yield
3.30%
Top-10 conc.
1.4%

Sub-score comparison

82
Cost
95
93
Tax efficiency
93
95
Liquidity
100
100
Concentration
100
—
Tracking quality
—
JMST sub-score MUB

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

Cost difference

MUB is 13 bps cheaper than JMST. On a $100,000 position that's about $130/yr more in fees for JMST.

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 JMST vs MUB.

Top shared holdings

173 shared in total
# Holding In JMST In MUB Overlap
1 City of Houston TX Combined Utility System Revenue 0.63% 0.09% 0.09%
2 Pennsylvania Turnpike Commission 0.60% 0.09% 0.09%
3 Alabama Federal Aid Highway Finance Authority 0.05% 0.05% 0.05%
4 State of Illinois 0.06% 0.04% 0.04%
5 State of Illinois 0.31% 0.04% 0.04%
6 State of Illinois 0.03% 0.11% 0.03%
7 State of Illinois 0.06% 0.02% 0.02%
8 New York City Transitional Finance Authority Future Tax Secured Revenue 0.15% 0.02% 0.02%
9 Michigan State Building Authority 0.02% 0.04% 0.02%
10 Energy Northwest 0.07% 0.02% 0.02%
11 State of Texas 0.06% 0.02% 0.02%
12 North Texas Tollway Authority 0.03% 0.02% 0.02%

Only in JMST

1,717 total
  • New York City Municipal Water Finance Authority 1.02%
  • State of Washington 0.90%
  • Alaska Housing Finance Corp. 0.86%
  • State of Minnesota 0.78%
  • Township of Woodbridge NJ 0.71%
  • Maryland Health & Higher Educational Facilities Authority 0.71%
  • Bergen County Improvement Authority (The) 0.68%
  • Tarrant County Cultural Education Facilities Finance Corp. 0.67%
  • District of Columbia 0.67%
  • County of Hamilton OH Sales Tax Revenue 0.66%

Only in MUB

6,480 total
  • Board of Regents of the University of Texas System 0.19%
  • New York State Thruway Authority 0.15%
  • San Antonio Water System 0.14%
  • Triborough Bridge & Tunnel Authority 0.14%
  • New York City Transitional Finance Authority Future Tax Secured 0.13%
  • New York State Dormitory Authority 0.13%
  • Ohio State University (The) 0.13%
  • Houston Higher Education Finance Corp. 0.13%
  • Northwest Independent School District 0.13%
  • State of California 0.12%

Percentages are holdings overlap with the named fund.

Open JMST 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 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.