IBMR vs MUND

IBMRAiShares iBonds Dec 2029 Term Muni Bond ETF

MUNDCNorthern Trust 2055 Tax-Exempt Distributing Ladder ETF

In short

IBMR A muni ladder rung in one ticker: it holds investment-grade municipal bonds maturing in 2029, tracks an AMT-free index, and pays monthly. Bond-style term structure, ETF plumbing.

MUND A municipal bond ladder in one ticket: bonds maturing on a schedule through 2055, federally tax-exempt income paid monthly, and principal handed back as rungs mature. Built to wind down by its terminal year, not run forever.

Stated mandate

IBMR The fund seeks to track an index of investment-grade municipal bonds that mature in 2029.

MUND The Fund seeks periodic distributions of federally tax-exempt income and/or principal through 2055. It uses a laddered strategy investing in municipal debt instruments with different maturity dates through the 2055 terminal year.

Why people hold it

• IBMR Charges 0.10% a year, right at the median for target-maturity bond funds, and the iBonds lineup is built so maturity years stack into a ladder.
• Spreads across more than a thousand investment-grade munis, so one issuer's trouble barely moves the fund.
• Follows an AMT-free index, screening out bonds whose income can trip the alternative minimum tax.
• Pays monthly, matching how muni income is usually spent, and holds a well-built portfolio for its category.

• MUND Works like an actual ladder: munis with staggered maturities through the 2055 terminal year, paying tax-exempt income monthly and returning principal as bonds come due.
• Costs 0.18% a year, below the 0.30% median for muni bond ETFs. Cheap for a structured, dated strategy rather than a plain index scoop.
• Spreads the rungs across about 100 US municipal positions, so no single issuer or maturity carries the ladder.

Worth knowing

• IBMR Munis are the tax-advantaged lane. For the same 2029 rung in taxable bonds, iShares also runs IBDU (corporate) and IBTJ (Treasury).
• The index is callable-adjusted: plenty of munis can be redeemed early by their issuers, so the mix heading into the term date can shift.
• It is a fund, not a single bond. Shares trade at market prices and move with rates along the way, and the end payout is whatever the bonds deliver.

• MUND Payouts blend tax-exempt interest with returned principal, and return of capital is disclosed. The distribution is not all yield, and net asset value is designed to shrink toward 2055.
• Launched in 2025, still small and thinly traded. Wider bid-ask spreads are the trade-off for a niche structure this new.
• Without the 2055 end date, broad muni staples are cheaper and far more heavily traded: VTEB at 0.03% and MUB at 0.05%.

Full IBMR profile⁠

Full MUND profile⁠