VTES vs ZMUN

VTESAVanguard Short-Term Tax-Exempt Bond ETF

ZMUNCF/m Ultrashort Tax-Free Municipal ETF

In short

VTES Vanguard's muni ETF on a short leash: an AMT-free tax-exempt index, but capped at seven years to trim interest-rate sensitivity. Five basis points, roughly 2,700 bonds, income paid monthly.

ZMUN The first ETF built purely on callable munis, tracking an index F/m co-developed with Bloomberg. It buys investment-grade tax-exempt bonds already callable or callable within three months, which keeps the maturity clock very short.

Stated mandate

VTES The Fund seeks to track an index representing investment-grade U.S. municipal bonds with remaining maturities from one month through seven years.

ZMUN The fund seeks to track, before fees and expenses, the price and yield performance of the Bloomberg Municipal Bond Currently Callable Index. It uses a passive representative-sampling approach focused on U.S. tax-exempt investment-grade municipal bonds that are currently callable or callable within three months.

Why people hold it

• VTES Costs 0.05% a year, a fraction of what the typical muni-bond fund in its category charges. One of the cheapest ways into tax-exempt bonds.
• Maturities run one month to seven years, so the portfolio moves less on rate swings than long-dated muni funds. Short duration is the whole point here.vanguard.com
• The index is AMT-free national investment-grade munis, so interest is federally tax-exempt and not caught by the alternative minimum tax.vanguard.com
• Roughly 2,700 bonds via index sampling, run by Vanguard's fixed income group, with distributions paid monthly. It tracks its benchmark closely.vanguard.com

• ZMUN A corner of the muni market nobody else had packaged: F/m calls it the first ETF dedicated to callable municipal bonds, on an index built with Bloomberg.fminvest.com
• The mechanism is the point: bonds callable now or within three months act like ultrashort paper, so price moves from rate swings tend to be muted.
• Interest is exempt from federal tax and, for some holders, certain state taxes. Spread across roughly 170 investment-grade issues, with cash paid monthly.
• No style drift: it is a passive representative-sampling fund, and the portfolio it holds matches the mandate written in its prospectus.

Worth knowing

• VTES Short maturities cut both ways. Vanguard's own materials describe moderate current income, the trade-off for less rate sensitivity than longer muni portfolios.vanguard.com
• It's a national fund, so it isn't structured to shelter state income tax the way single-state muni ETFs such as NYF are.
• Launched in 2023, it has a shorter live record than muni ETFs that have been trading for over a decade, including its broader sibling VTEB.

• ZMUN 0.30% a year sits above the short-muni group's 0.25% median, and far above the index giants VTES (0.05%) and SUB (0.07%).
• Callability cuts both ways: issuers can redeem these bonds at their option, capping price upside and forcing reinvestment at whatever rates exist that day.fminvest.com
• A 2025 launch that is still small and thinly traded. Short track record, and limit orders are the sane way in and out.

Full VTES profile⁠

Full ZMUN profile⁠