IMTB Performance — iShares Core 5-10 Year USD Bond ETF
Data updated: 2026-07-24
IMTB returned +0.57% year to date and +6.20% over one year to May 2026. Annualised returns are +4.81% over 3 years and +0.63% over 5 years. The fund beat its Intermediate Core Bond category average: $100 invested three years ago grew to $115, against $115 for the category, and to $106 over one year, against $105. Volatility over the past three years was 6.07% a year. In the 12 months to May 2026 the fund took in a net $26.5M, and assets reached $279.73M.
IMTB Growth of $100
What $100 invested in iShares Core 5-10 Year USD Bond ETF grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Core Bond category average over the same months.
| Period | IMTB | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $106 | $105 |
| 3 years (Jun 2023 – May 2026) | $115 | $115 |
| 5 years (Jun 2021 – May 2026) | $103 | $103 |
| Since data start (Sep 2019 – May 2026) | $109 | $109 |
IMTB Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.57% |
| 1 year | +6.20% |
| 3 years (annualised) | +4.81% |
| 5 years (annualised) | +0.63% |
IMTB Annual Returns
Calendar-year total returns of iShares Core 5-10 Year USD Bond ETF, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +0.57% |
| 2025 | +8.71% |
| 2024 | +1.96% |
| 2023 | +6.16% |
| 2022 | −12.88% |
| 2021 | −1.34% |
| 2020 | +6.38% |
| 2019 (Sep–Dec) | +0.31% |
IMTB 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 | +0.3% | +1.6% | −1.9% | +0.3% | +0.2% | — | — | — | — | — | — | — |
| 2025 | +0.6% | +2.3% | +0.1% | +0.5% | −0.6% | +1.8% | −0.2% | +1.5% | +1.0% | +0.8% | +0.7% | 0.0% |
| 2024 | −0.2% | −1.5% | +1.0% | −2.6% | +1.9% | +1.1% | +2.6% | +1.6% | +1.3% | −2.7% | +1.3% | −1.7% |
| 2023 | +3.5% | −2.7% | +2.4% | +0.7% | −1.0% | −0.4% | +0.1% | −0.7% | −2.8% | −1.9% | +5.1% | +4.1% |
| 2022 | −1.9% | −1.2% | −2.8% | −3.8% | +0.9% | −2.2% | +3.4% | −3.3% | −4.9% | −0.9% | +4.0% | −0.7% |
| 2021 | −0.3% | −1.1% | −1.0% | +0.8% | +0.2% | +0.4% | +0.9% | −0.1% | −0.7% | −0.4% | −0.1% | +0.1% |
| 2020 | +1.4% | +1.1% | −1.6% | +1.7% | +1.0% | +0.6% | +1.2% | 0.0% | −0.2% | −0.2% | +0.9% | +0.4% |
| 2019 | — | — | — | — | — | — | — | — | −0.3% | +0.4% | −0.1% | +0.3% |
IMTB Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 6.07%
- 3-year Sharpe ratio: 0.05 (vs 4.5% risk-free rate)
- Best month: +5.12% (Nov 2023)
- Worst month: −2.83% (Sep 2023)
IMTB Fund Flows
Monthly money in and out of iShares Core 5-10 Year USD Bond ETF, from SEC Form N-PORT.
- 12-month net flow: $26.5M
- 12-month gross sales (incl. reinvestments): $26.5M
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $0 | $0 | $0 |
| Apr 2026 | $0 | $0 | $0 |
| Mar 2026 | $0 | $0 | $0 |
| Feb 2026 | $4.4M | $0 | $4.4M |
| Jan 2026 | $0 | $0 | $0 |
| Dec 2025 | $4.4M | $0 | $4.4M |
| Nov 2025 | $4.4M | $0 | $4.4M |
| Oct 2025 | $8.8M | $0 | $8.8M |
| Sep 2025 | $4.4M | $0 | $4.4M |
| Aug 2025 | $0 | $0 | $0 |
| Jul 2025 | $0 | $0 | $0 |
| Jun 2025 | $0 | $0 | $0 |
IMTB Assets Under Management
Net assets of iShares Core 5-10 Year USD Bond ETF by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $279.73M |
| 2026-02-28 | $286.63M |
| 2025-11-30 | $275.51M |
| 2025-08-31 | $254.28M |
| 2025-05-31 | $249.53M |
| 2025-02-28 | $221.82M |
| 2024-11-30 | $217.36M |
| 2024-08-31 | $224.43M |
| 2024-05-31 | $185.73M |
| 2024-02-29 | $170.33M |
| 2023-11-30 | $155.64M |
| 2023-08-31 | $191.06M |
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.