BSMS vs IBMP

BSMSBInvesco BulletShares 2028 Municipal Bond ETF

IBMPAiShares iBonds Dec 2027 Term Muni Bond ETF

In short

BSMS A ladder rung in a wrapper: roughly 2,200 municipal bonds that all come due by 2028, when the fund is designed to terminate. Most bond funds roll forever. This one has an end date on the box.

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.

Stated mandate

BSMS The Fund seeks to track the Invesco BulletShares USD Municipal Bond 2028 Index by investing primarily in U.S.-dollar-denominated municipal securities issued by U.S. states, state agencies, or local governments. It uses representative sampling and is designed to terminate in December 2028.

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.

Why people hold it

• BSMS Built to terminate in December 2028, so the position resolves on a known date instead of rolling into new bonds indefinitely.invesco.com
• Spreads across roughly 2,200 municipal issues from US states, agencies and local governments using representative sampling, so no single borrower carries the portfolio.
• Pays monthly, and the diversified muni portfolio is one of the sturdier builds among target-maturity funds.
• Live since 2019 and part of Invesco's long-running BulletShares lineup, which runs the same defined-maturity playbook across corporate and muni years.invesco.com

• 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.

Worth knowing

• BSMS At 0.18% a year, it costs more than the typical target-maturity fund, and more than BulletShares corporate rungs like BSCT and BSCU at 0.10%.
• Trading is moderate rather than heavy, so the market here is thinner than in the largest target-maturity funds.
• By design the portfolio shortens as 2028 nears: bonds mature, proceeds sit in shorter paper, and the fund acts less like a bond fund over time.

• 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.

Full BSMS profile⁠

Full IBMP profile⁠