MUST vs VTEB

MUSTBColumbia Multi-Sector Municipal Income ETF

VTEBAVanguard Tax-Exempt Bond ETF

In short

MUST Most muni index funds just buy the market by size. MUST tracks a Columbia-built index that carves the tax-exempt market into five fixed slices, screens out tobacco bonds, territory paper and California debt, and pays monthly.

VTEB Vanguard's national muni index fund, running since 2015 at three basis points, a tenth of what the typical muni ETF charges. Its benchmark screens for investment-grade bonds whose income is exempt from federal tax and the AMT.

Stated mandate

MUST The Fund is a passive ETF designed to track the Beta Advantage Multi-Sector Municipal Bond Index before fees and expenses.

VTEB VTEB seeks to track an index measuring the investment-grade segment of the U.S. municipal bond market. It uses passive sampling to approximate the index and generally invests in federally tax-exempt municipal securities.

Why people hold it

• MUST Costs 0.23% a year, below the typical muni bond ETF, for a rules-based build rather than a plain market-cap copy of the muni market.
• The index sets a fixed budget across five muni segments, including hospital debt and a standing high-yield sleeve, and reconstitutes monthly.sec.govsec.gov 2
• Screens out the messier corners: tobacco bonds, Puerto Rico and other territory paper, pre-refunded and insured bonds, and California debt.sec.govcolumbiathreadneedleus.com
• Spreads risk across roughly 600 bonds and pays income monthly.

• VTEB Three basis points a year against a 0.30% muni-ETF median. On tax-exempt bonds, where coupons are modest, that fee gap is a real slice of the payout.
• The index holds only investment-grade munis whose interest is exempt from federal income tax and the alternative minimum tax, so the income carries no AMT surprise.vanguard.com
• A multi-billion-dollar fund and one of the most heavily traded in the muni category, which tends to show up as tight bid-ask spreads. Income is paid monthly.
• It has tracked its benchmark closely and sits among the strongest implementations in a crowded muni bond peer group.

Worth knowing

• MUST You pay up for the rules: VTEB and MUB run the plain national muni index for a few basis points.
• The permanent junk-muni sleeve and the hospital-debt slice carry more credit risk than a plain investment-grade muni index.sec.gov
• A mid-size, moderately traded fund, so trading costs can run wider than the category's biggest names.

• VTEB Federal exemption, not blanket coverage. Income can still be taxable in your home state, which is why single-state funds like NYF exist alongside it.vanguard.com
• Credit quality is investment grade, so rates are the main swing factor: when muni yields rise, bond prices and the fund's share price fall.vanguard.com
• Sampling, not full replication. The fund owns a representative slice of a very large index rather than every bond in it.vanguard.com

Full MUST profile⁠

Full VTEB profile⁠