MUST vs SCMB

MUSTBColumbia Multi-Sector Municipal Income ETF

SCMBASchwab Municipal 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.

SCMB Schwab's take on the core muni sleeve: three basis points, thousands of AMT-free bonds from across the country, and a monthly distribution. Bottom-of-the-table pricing, no frills attached.

Stated mandate

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

SCMB The fund seeks to track, before fees and expenses, the total return of an index representing the U.S. AMT-free municipal bond market.

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.

• SCMB Three basis points a year, against a 0.30% median for muni bond funds. Among the top-graded names in the category, only Vanguard's VTEB matches that fee.
• Follows the ICE AMT-Free Core U.S. National Municipal Index across thousands of bonds and issuers, so no single borrower or state drives the portfolio.
• Plain passive plumbing done well: it stays close to its index, trades actively, and pays monthly. One of the stronger implementations in the muni aisle.

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.

• SCMB Launched in 2022, so its live record is shorter than muni staples like MUB and VTEB, even though the strategy is the same broad-market idea.
• Bond math still applies. This is a portfolio of municipal bonds, so share prices move opposite to interest rates.
• National in scope, not single-state like NYF, so it is not built around any one state's tax rules.

Full MUST profile⁠

Full SCMB profile⁠