MUB is the iShares National Muni Bond ETF, a Bonds & Fixed Income ETF issued by BlackRock.

What is the expense ratio of MUB?

Expense ratio data for MUB is shown on the page when available from our data provider.

What are the largest holdings in MUB?

Top holdings include BLACKROCK LIQ MUNICASH CL INS MMF, USD CASH, UNIVERSITY TEX UNIV REVS 5.00% 08/15/2036, SAN ANTONIO TEX WTR REV 05/01/2055, NORTHWEST TEX INDPT SCH DIST 5.25% 02/15/2055.

How can PortView analyze MUB overlap with other ETFs?

PortView computes the holdings overlap between MUB and the other ETFs and stocks you own, plus your combined sector and geographic exposure, so you can see true diversification.

iShares National Muni Bond (MUB) ETF Holdings & Analysis

ETFBonds & Fixed IncomeBlackRock

$103.23+0.76%

1-year price historyRange $100.28 – $108.92

52-week range$103.23

$100.07$109.00

What MUB does

This exchange-traded fund is designed to closely replicate the performance of a designated index, which exclusively comprises high-quality municipal bonds issued across the United States.

Fund profile

Issuer

BlackRock

Top holdings

	Holding	Weight
	BLACKROCK LIQ MUNICASH CL INS MMF	3.33%
	USD CASH	0.49%
	UNIVERSITY TEX UNIV REVS 5.00% 08/15/2036	0.16%
	SAN ANTONIO TEX WTR REV 05/01/2055	0.13%
	NORTHWEST TEX INDPT SCH DIST 5.25% 02/15/2055	0.13%
	NEW YORK ST TWY AUTH ST PERS I 5.00% 03/15/2048	0.12%
	OKLAHOMA TRANSN AUTH OK F/K/A 5.50% 01/01/2053	0.12%
	TRIBOROUGH BRDG & TUNL AUTH NY 01/01/2035	0.12%
	NEW JERSEY ST 5.00% 06/01/2028	0.11%
	HOUSTON TEX HIGHER ED FIN CORP 5.00% 05/15/2034	0.11%

Sector allocation

State Tax-Backed	29.20%
Local Tax-Backed	19.24%
Utility	17.09%
Transportation	10.89%
School Districts	9.52%
Education	7.98%
Cash and/or Derivatives	5.25%
Prerefund/Escrow	0.66%
Other Industries	0.12%
Corporate Muni	0.03%
Other	0.01%

Geographic allocation

United States

100.00%

PortView Portfolio Insights

PortView analyzes how MUB fits your actual portfolio — position weight, ETF overlap with your other funds, sector and geographic exposure, concentration, and how this fund contributes to your portfolio risk and return. Connect a portfolio to see your personalized figures; PortView never shows another user's private holdings.

Analyze MUB in PortView →

Related securities

Frequently asked questions

What does MUB track?: MUB is the iShares National Muni Bond ETF, a Bonds & Fixed Income ETF issued by BlackRock.
What is the expense ratio of MUB?: Expense ratio data for MUB is shown on the page when available from our data provider.
What are the largest holdings in MUB?: Top holdings include BLACKROCK LIQ MUNICASH CL INS MMF, USD CASH, UNIVERSITY TEX UNIV REVS 5.00% 08/15/2036, SAN ANTONIO TEX WTR REV 05/01/2055, NORTHWEST TEX INDPT SCH DIST 5.25% 02/15/2055.
How can PortView analyze MUB overlap with other ETFs?: PortView computes the holdings overlap between MUB and the other ETFs and stocks you own, plus your combined sector and geographic exposure, so you can see true diversification.

The information provided by PortView is for informational and educational purposes only and does not constitute investment advice. Market data may be delayed. Past performance does not guarantee future results.