IBMT — iShares iBonds Dec 2031 Term Muni Bond ETF
Data updated: 2026-06-26
IBMT — iShares iBonds Dec 2031 Term Muni Bond ETF data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Intermediate Municipal - National Bond · $87.52M AUM · 0.18% expense ratio · 5.7% 1-yr return. From SEC regulatory filings.
IBMT Fund Overview
IBMT — iShares iBonds Dec 2031 Term Muni Bond ETF is a US ETF managed by iSHARES TRUST, categorised as Intermediate Municipal - National Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: iSHARES TRUST
- Category: Intermediate Municipal - National Bond
- Assets under management: $87.52M
- 1-year return: 5.7%
- Ticker: IBMT
- SEC CIK: 0001100663
- SEC series ID: S000090637
- Share class ID: C000257913
IBMT Holdings
Top 10 holdings of iShares iBonds Dec 2031 Term Muni Bond ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| County of Montgomery | 0.66% |
| North Texas Tollway Authority | 0.65% |
| Metropolitan Nashville Airport Authority (The) | 0.63% |
| City of New York | 0.55% |
| New York State Dormitory Authority | 0.52% |
| California State Public Works Board | 0.50% |
| Long Island Power Authority | 0.47% |
| City of New York | 0.47% |
| State of Minnesota | 0.46% |
| Metropolitan Water Reclamation District of Greater Chicago | 0.45% |
IBMT Portfolio Allocation
Asset-class allocation of iShares iBonds Dec 2031 Term Muni Bond ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 98.9% |
| Cash & Equivalents | 0.1% |
IBMT Performance
Total returns for IBMT (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.0% |
| 1 year | 5.7% |
IBMT Risk Information
Risk metrics for IBMT, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.3%
IBMT Costs and Fees
IBMT costs about $18 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.18%
- Gross expense ratio: 0.18%
- Portfolio turnover: 0%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
IBMT Cashflows
Over the 12 months to 2026-04, iShares iBonds Dec 2031 Term Muni Bond ETF had net inflows of $84.02M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | $3.86M |
| 2026-03 | $2.57M |
| 2026-02 | $6.58M |
| 2026-01 | $20.88M |
| 2025-12 | $16.83M |
| 2025-11 | $5.18M |
IBMT Debt Constituents
Largest debt holdings of iShares iBonds Dec 2031 Term Muni Bond ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| County of Montgomery | 0.66% |
| North Texas Tollway Authority | 0.65% |
| Metropolitan Nashville Airport Authority (The) | 0.63% |
| City of New York | 0.55% |
| New York State Dormitory Authority | 0.52% |
| California State Public Works Board | 0.50% |
| Long Island Power Authority | 0.47% |
| City of New York | 0.47% |
| State of Minnesota | 0.46% |
| Metropolitan Water Reclamation District of Greater Chicago | 0.45% |
IBMT Prospectus and SEC Filings
Official iShares iBonds Dec 2031 Term Muni Bond ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Intermediate Municipal - National Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.