iShares Short-Term National Muni Bond ETF

iShares Short-Term National Muni Bond ETF

About

iShares Short-Term National Muni Bond ETF (US4642881589) is a US-listed bond ETF tracking the ICE Short Maturity AMT-Free US National Municipal Index. With a expense ratio of 0.07%, it ranks among the lowest-cost options in its category, paying distributions. The fund holds 2,934 positions with 11.3B in assets.

Score Breakdown

Scores are scaled 1–10 on a logarithmic curve relative to all ETFs in the database. Last updated: Jun 22, 2026
Component Score Details
Cost (30%) 9.2 Tracking Difference: 9.1 · TD Consistency: — · Expense Ratio: 9.4
Liquidity (25%) 10.0 Assets Under Management

Data sources: provider factsheets, exchange data, and NAV history. Information for educational purposes only — not investment advice.

Ticker SUB
ISIN
Fund Size $11.3B
Issuer iShares
Distribution Pays Distributions
Replication Physical
Inception Nov 2008
Base Currency USD
Index ICE Short Maturity AMT-Free US National Municipal Index
Asset Class Bonds

Costs

9.2
This fund has low total costs, with competitive tracking and expense ratios.

Cost Metrics Explained

What expense ratio, tracking difference, and TD consistency measure

Expense ratio (Total Expense Ratio) is the annual fee the fund charges, deducted from assets. It’s the headline cost, but not the full picture.

Tracking Difference measures how much the fund actually lags (or leads) its benchmark index per year. This is the single best measure of true cost — it captures the expense ratio plus all other drags like sampling error and tax withholding. A lower (or negative) value is better.

TD Consistency measures how stable the tracking difference is from year to year. A low value means predictable, reliable costs; a high value means costs can vary significantly.
Expense Ratio0.00%
 
Metric Value
Expense Ratio 0.07%

Cumulative Returns

Performance across different time periods.
Year to Date+0.00%
1 Year+0.00%
3 Years+0.00%
5 Years+0.00%
Inception+0.00%
 
Period Cumulative Return
1 Month —
3 Months —
6 Months —
1 Year +3.11%
3 Years +3.09%
5 Years +1.47%
10 Years +1.47%
YTD +0.75%
Since Inception +1.60%

Holdings

This fund invests into 2,934 individual investments.
#1
NEW JERSEY ECONOMIC DEV AUTH R
0.37%
#2
KING CNTY WASH SWR REV
0.35%
#3
SAN ANTONIO TEX WTR REV
0.29%
#4
CALIFORNIA ST
0.28%
#5
SEATTLE WASH MUN LT & PWR REV
0.27%
#6
NEW YORK ST URBAN DEV CORP REV
0.25%
#7
NEW JERSEY ST TPK AUTH TPK REV
0.25%
#8
PENNSYLVANIA ST TPK COMMN TPK
0.25%
#9
UNIVERSITY CALIF REVS
0.25%
#10
CALIFORNIA ST
0.24%
View all holdings (50)
# Holding Ticker Weight
1 NEW JERSEY ECONOMIC DEV AUTH R — 36.81%
2 KING CNTY WASH SWR REV — 34.54%
3 SAN ANTONIO TEX WTR REV — 28.94%
4 CALIFORNIA ST — 27.71%
5 SEATTLE WASH MUN LT & PWR REV — 27.29%
6 NEW YORK ST URBAN DEV CORP REV — 25.31%
7 NEW JERSEY ST TPK AUTH TPK REV — 24.93%
8 PENNSYLVANIA ST TPK COMMN TPK — 24.68%
9 UNIVERSITY CALIF REVS — 24.65%
10 CALIFORNIA ST — 23.95%
11 CALIFORNIA ST — 23.93%
12 DISTRICT COLUMBIA WTR & SWR AU — 22.08%
13 MASSACHUSETTS ST — 21.53%
14 CONNECTICUT ST SPL TAX OBLIG R — 21.53%
15 NEW YORK N Y — 21.04%
16 NEW YORK N Y CITY TRANSITIONAL — 20.81%
17 HOUSTON TEX UTIL SYS REV — 20.40%
18 CONNECTICUT ST HEALTH & EDL FA — 20.32%
19 PENNSYLVANIA ST — 20.26%
20 NEW JERSEY ST — 20.13%
21 KING CNTY WASH SWR REV — 19.98%
22 OHIO ST WTR DEV AUTH REV — 19.85%
23 NEW YORK N Y CITY TRANSITIONAL — 19.84%
24 GEORGIA ST — 19.61%
25 KENTUCKY STATE PROPERTY AND BUILDI — 19.43%
26 MINNESOTA PUB FACS AUTH ST REV — 18.75%
27 LOUISIANA (STATE OF) — 18.54%
28 COLORADO ST ED LN PROG — 18.39%
29 WASHINGTON ST — 18.26%
30 EAST CNTY ADVANCED WTR PURIFIC — 17.85%
31 NEW JERSEY ST EDL FACS AUTH RE — 17.83%
32 HOUSTON TEX — 17.67%
33 NEW YORK N Y — 17.66%
34 ORLANDO FLA UTILS COMMN UTIL S — 17.66%
35 NEW YORK N Y CITY MUN WTR FIN — 17.64%
36 TRIBOROUGH BRDG & TUNL AUTH N — 17.48%
37 CALIFORNIA ST — 17.37%
38 WASHINGTON ST — 17.36%
39 NEW JERSEY ST — 17.27%
40 MARYLAND ST — 17.12%
41 UNIVERSITY CALIF REVS — 16.93%
42 NEW YORK ST DORM AUTH ST PERS — 16.91%
43 VIRGINIA COLLEGE BLDG AUTH VA — 16.80%
44 MASSACHUSETTS ST WTR RES AUTH — 16.72%
45 MINNESOTA ST — 16.50%
46 FORT BEND TEX INDPT SCH DIST — 16.23%
47 NEW YORK ST DORM AUTH ST PERS — 16.20%
48 LONG IS PWR AUTH N Y ELEC SYS 144A — 16.11%
49 ILLINOIS ST — 16.11%
50 UNIVERSITY CALIF REVS — 16.09%

Sectors

Allocation by industry sector.
 
Sector Weight
Unknown 10000.00%

Regions

Geographic allocation by country of risk.
 
Country Weight
UNKNOWN 10000.00%
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