IBMP vs MYMG

IBMPAiShares iBonds Dec 2027 Term Muni Bond ETF

MYMGDState Street My2027 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.

MYMG One dated rung of a municipal bond ladder, in ETF form: roughly 70 munis maturing in 2027, with monthly income aimed at exemption from regular federal income tax. Most target-maturity funds are corporate or Treasury. This is the tax-exempt flavor.

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.

MYMG The fund seeks current income exempt from regular federal income taxes while also seeking preservation of capital.

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.

• MYMG Tracks the ICE 2027 Maturity US Broad Municipal Index, so it behaves like a single dated rung of a ladder instead of a fund with permanently rolling maturities.ssga.com
• The mandate targets income exempt from regular federal income taxes alongside preservation of capital, and distributions come monthly rather than quarterly.
• Roughly 70 municipal bonds in one ticker, a basket most individual investors would struggle to assemble bond by bond in a dealer-quoted market.
• A muni option in a corner of the market dominated by corporate and Treasury bullet funds like IBDU, IBTJ and BSCT, from a long-running ETF issuer.

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.

• MYMG The 0.20% expense ratio sits above the typical target-maturity bond ETF; Treasury and corporate rungs such as IBTJ (0.07%) and BSCT (0.10%) charge less.
• Small and thinly traded, so trading costs can matter more here than in the giant corporate ladder funds. Launched in 2024, it also has a short history.
• Read the mandate literally: the exemption is from regular federal income taxes. Other tax layers are not part of the objective.

Full IBMP profile⁠

Full MYMG profile⁠