IBMR vs MYMF: Grades, Fees and Holdings Compared

iShares iBonds Dec 2029 Term Muni Bond ETF

IBMRACboe

State Street My2026 Municipal Bond ETF

MYMFDNasdaq

Overlap

No data

Expense ratio

IBMR −0.10pt a year

IBMR0.10%MYMF0.20%

Avg volume · 30D

IBMR 249.3×the volume

IBMR105KMYMF423

IBMR vs MYMF Performance

Oct 31, 2025 – Oct 30, 2026

+1.6%IBMR+2.3%MYMF

Expense ratio: IBMR 0.10%, better; MYMF 0.20%
Fund size: IBMR $527M; MYMF $9M
1Y total return: IBMR +1.6%; MYMF +2.3%, better
Yield (12M): IBMR 2.54%, better; MYMF 2.47%
Holdings: IBMR 2071; MYMF 54
Avg volume (30D): IBMR 105K sh, better; MYMF 423 sh
NAV per share: IBMR $25.16; MYMF $24.94
52W range

ETF.net Grade

Pillar letters and Scores for IBMR, MYMF, with each pillar’s weight
Pillar	IBMR	MYMF
Cost30% weight	A87Higher	F8
Mission25% weight	A96	Not scored
Risk15% weight	C54	B64Higher
Tradability15% weight	A83Higher	F22
Holdings10% weight	A89Higher	F20
Durability5% weight	A85Higher	C42

Rank among Defined-Maturity Municipal funds

How we build Categories ›

Same Category. IBMR and MYMF are both graded against the same 32 Defined-Maturity Municipal funds, so their Grades compare head to head.

Defined-Maturity Municipal⁠

Category · 32 funds

See all 32 ›

IBMR ranks 3rd and MYMF 26th of 32 funds in the Defined-Maturity Municipal Category.

Rank 1AIBMPiShares iBonds Dec 2027 Term Muni Bond ETFScore 88
Rank 2AIBMQiShares iBonds Dec 2028 Term Muni Bond ETFScore 87
Rank 3AIBMRiShares iBonds Dec 2029 Term Muni Bond ETFScore 83
Rank 4AIBMOiShares iBonds Dec 2026 Term Muni Bond ETFScore 82
Rank 25DMYMGState Street My2027 Municipal Bond ETFScore 27
Rank 26DMYMFState Street My2026 Municipal Bond ETFScore 25
Rank 26DMYMIState Street My2029 Municipal Bond ETFScore 25

Our read on each fund

ETF.net Research

IBMRAiShares iBonds Dec 2029 Term Muni Bond ETF

MYMFDState Street My2026 Municipal Bond 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.

MYMF A muni fund with an expiration date. MYMF holds bonds maturing in 2026, pays monthly, then hands back remaining principal on or about December 15, 2026. And a manager picks the bonds, not an index.

Stated mandate

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

MYMF The fund is an actively managed target-maturity municipal bond strategy focused primarily on bonds maturing in 2026. It is designed to distribute remaining principal and liquidate around December 15, 2026.

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.

MYMF Maturity is written into the product: the fund is designed to distribute any remaining principal and liquidate on or about December 15, 2026.ssga.com
Actively managed in a corner of the market built on index ladders: top-down risk positioning plus bottom-up research on sectors and issuers.ssga.com
Monthly payouts from a compact book of roughly 70 munis, with income the fund seeks to keep exempt from regular federal income taxes.ssga.com
One rung in State Street's MyIncome suite, a family of target-maturity funds meant to be stacked into a custom bond ladder.ssga.com

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.

MYMF Costs 0.20% a year: above the 0.18% cohort median and double the 0.10% on iBonds muni rungs like IBMO, which also targets a 2026 maturity.
A small, thinly traded fund, the setup where bid/ask spreads tend to run wider than in the category's largest names.
Launched in 2024 and built to wind up in 2026, so both the track record and the remaining life are short by design.

Full IBMR profile⁠

Full MYMF profile⁠

IBMR vs MYMF Holdings

How IBMR and MYMF differ

No overlap figure

Two bond funds rarely hold the same issues.

Level by level

Asset classFixed Income100%
Countryby domicile100%

Sector

No Sector split for MYMF.

Country, concentration and asset class

Country by domicile

Country weights in IBMR and MYMF, widest gap first
Country	More in IBMRMore in MYMF	IBMR	MYMF
United States	Same weight	100.0%	100.0%

Concentration

Weight in the 10 largest Holdings

IBMR4.8%
MYMF43.3%

Securities held

IBMR1,324
MYMF47

Asset class

IBMR: Fixed Income
MYMF: Fixed Income

Holdings

Two bond funds rarely hold the same issues, so this page lists no shared Holdings. IBMR holds 1,324 securities, MYMF 47.

All 2,069 IBMR holdings⁠All 54 MYMF holdings⁠

How we measure overlap

Each holding counts at its smaller weight in the two funds, summed over the full Holdings. Sector, country and asset class use the same rule on each fund’s split. Cash, FX and derivative lines stay out of the counts. Two bond funds get no overlap figure.

IBMR vs MYMF Cost

Overpaying MYMF vs IBMR

$2,049

On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.

IBMR 0.10%
$2,106
MYMF 0.20%
$4,155

Amount$10,000

Years30 years

Cost over time

IBMR 0.10%
MYMF 0.20%
Overpaying

Year by year

Year	IBMR	MYMF	Overpaying
10	$183	$365	$182
20	$717	$1,421	$704
30	$2,106	$4,155	$2,049

Expense ratio

0.10%IBMR, cheaper
0.20%MYMF

IBMR0.10%MYMF0.20%

0.10%0.20%

Middle half of Defined-Maturity Municipal funds
Median 0.18%

IBMR cheapest of 32 funds

MYMF 27th cheapest of 32 funds

IBMR vs MYMF Dividends

Last 12 months to Oct 30, 2026

Yield (12M): IBMR 2.54%, better; MYMF 2.47%
Payout (12M): IBMR $0.64; MYMF $0.61
Last payment: IBMR $0.05; MYMF $0.05
Ex-dividend: IBMR Oct 1, 2026; MYMF Oct 1, 2026
Paid on: IBMR Oct 6, 2026; MYMF Oct 6, 2026
Frequency: IBMR Monthly; MYMF Monthly

Distribution history

Per share, 2023 to 2026, same scale for both

IBMRMonthly · 40 paymentsAll IBMR payments⁠

MYMFMonthly · 25 paymentsAll MYMF payments⁠

IBMR vs MYMF Risk

Fall from peak · 5 years

This chart needs five years of history for both funds.

Risk facts

VolatilityStd dev, 3 years: IBMR 4.4%MYMF 1.1%since Oct 2024
Return per unit of riskSharpe ratio, 3 years: IBMR 0.02MYMF −1.67since Oct 2024
Worst fallMax drawdown, 5 years: IBMR −4.8%since May 2023MYMF −2.0%since Sep 2024
Market sensitivityBeta, 5 years: IBMR 0.75MYMF 0.04; Market = 1

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