IBMT Performance — iShares iBonds Dec 2031 Term Muni Bond ETF
Data updated: 2026-09-25
IBMT returned −0.66% year to date and +2.52% over one year to Jul 2026. Over one year the fund trailed its Intermediate Municipal Bond category average: $100 grew to $103, against $105 for the category. Volatility over the past 12 months was 3.54% a year. In the 12 months to Jul 2026 the fund took in a net $122.7M, and assets reached $129.66M.
IBMT Growth of $100
What $100 invested in iShares iBonds Dec 2031 Term Muni Bond ETF grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Municipal Bond category average over the same months.
| Period | IBMT | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $103 | $105 |
| Since data start (Mar 2025 – Jul 2026) | $105 | $103 |
IBMT Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | −0.66% |
| 1 year | +2.52% |
IBMT Annual Returns
Calendar-year total returns of iShares iBonds Dec 2031 Term Muni Bond ETF, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | −0.66% |
| 2025 (Mar–Dec) | +5.43% |
IBMT Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +1.0% | +0.8% | −2.4% | +0.6% | +0.2% | +0.4% | −1.2% | — | — | — | — | — |
| 2025 | — | — | −0.1% | −0.2% | +0.9% | +1.1% | +0.4% | +0.9% | +1.2% | +0.4% | +0.2% | +0.4% |
IBMT Risk
Risk measures from monthly returns over Aug 2025 – Jul 2026.
- 1-year volatility (annualised): 3.54%
- Best month: +1.25% (Sep 2025)
- Worst month: −2.40% (Mar 2026)
IBMT Fund Flows
Monthly money in and out of iShares iBonds Dec 2031 Term Muni Bond ETF, from SEC Form N-PORT.
- 12-month net flow: $122.7M
- 12-month gross sales (incl. reinvestments): $122.7M
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $19.2M | $0 | $19.2M |
| Jun 2026 | $18.0M | $0 | $18.0M |
| May 2026 | $6.4M | $0 | $6.4M |
| Apr 2026 | $3.9M | $0 | $3.9M |
| Mar 2026 | $2.6M | $0 | $2.6M |
| Feb 2026 | $6.6M | $0 | $6.6M |
| Jan 2026 | $20.9M | $0 | $20.9M |
| Dec 2025 | $16.8M | $0 | $16.8M |
| Nov 2025 | $5.2M | $0 | $5.2M |
| Oct 2025 | $2.6M | $0 | $2.6M |
| Sep 2025 | $7.7M | $0 | $7.7M |
| Aug 2025 | $12.8M | $0 | $12.8M |
IBMT Assets Under Management
Net assets of iShares iBonds Dec 2031 Term Muni Bond ETF by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $129.66M |
| 2026-04-30 | $87.52M |
| 2026-01-31 | $75.86M |
| 2025-10-31 | $32.36M |
| 2025-07-31 | $8.89M |
| 2025-04-30 | $3.74M |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.