IBMP vs MYMJ

IBMPAiShares iBonds Dec 2027 Term Muni Bond ETF

MYMJFState Street My2030 Municipal Bond ETF

In short

IBMP A single rung of a muni ladder in one ticker: investment-grade bonds that all mature in 2027, tax-exempt income paid monthly along the way, and a defined end date instead of a fund that rolls on forever.

MYMJ A bond fund with a finish line. MYMJ holds roughly 100 municipal bonds maturing around 2030, pays monthly along the way, then distributes remaining principal and winds down around December 15, 2030.

Stated mandate

IBMP The fund seeks to track an index of investment-grade municipal bonds maturing in 2027. It is designed to provide tax-exempt income, support bond-ladder construction, and manage interest-rate risk through a defined maturity.

MYMJ The fund is actively managed and targets municipal bonds maturing primarily in 2030. It is designed to distribute remaining principal and liquidate around December 15, 2030.

Why people hold it

• IBMP Built to act like a bond, not a bond fund: the portfolio matures in 2027 and the whole design points at that date, which is what makes ladder-building possible with one trade.ishares.com
• 0.10% a year, right at the typical target-maturity bond fund, and it tracks an AMT-free index, so the tax-exempt income isn't pulled back in by the alternative minimum tax.
• Roughly 1,800 municipal bonds, so no single issuer carries the fund. That spread is hard to replicate buying individual munis one CUSIP at a time.
• Income lands monthly, and this 2027 rung has been running since 2019, so it isn't a fresh launch built for the moment.

• MYMJ Behaves like a single bond, not a perpetual fund: it targets munis maturing primarily in 2030 and is designed to pay out remaining principal and liquidate around December 15, 2030.ssga.com
• The municipal option on a shelf whose highest-graded names (BSCU, IBDU, IBTJ) are corporate and Treasury ladders. Different tax and issuer profile in the same defined-maturity wrapper.
• Actively managed rather than locked to a fixed list, so the team can choose among issues inside the 2030 maturity window. Spreads income across about 100 bonds and pays monthly.

Worth knowing

• IBMP The 0.10% fee is the category median, not a discount. Treasury and corporate rungs like IBTJ (0.07%) and VBCB (0.08%) cost less, though neither pays tax-exempt muni income.
• The tax exemption is the entire pitch, and it does no work inside an IRA or 401(k), where the income is already sheltered.
• Trading is moderate rather than heavy, so order size and timing matter more here than in the most heavily traded bond ETFs.

• MYMJ The active approach carries an active price: 0.20% a year, roughly double the typical fee among defined-maturity bond ETFs.
• Small and thinly traded, which tends to mean wider bid-ask spreads than the big ladder franchises. Limit orders matter more here.
• The clock runs down. Launched in 2024, it shortens toward its 2030 wind-up, so its interest-rate sensitivity and income profile shift as the end date nears.

Full IBMP profile⁠

Full MYMJ profile⁠