IBTO Performance — iShares iBonds Dec 2033 Term Treasury ETF
Data updated: 2026-09-25
IBTO returned −1.10% year to date and +2.05% over one year to Jul 2026. The annualised 3-year return is +2.74%. The fund trailed its Intermediate Government Bond category average: $100 invested three years ago grew to $108, against $111 for the category, and to $102 over one year, against $103. Volatility over the past three years was 6.73% a year. In the 12 months to Jul 2026 the fund took in a net $107.7M, and assets reached $463.80M.
IBTO Growth of $100
What $100 invested in iShares iBonds Dec 2033 Term Treasury ETF grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Government Bond category average over the same months.
| Period | IBTO | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $102 | $103 |
| 3 years (Aug 2023 – Jul 2026) | $108 | $111 |
| Since data start (Jun 2023 – Jul 2026) | $107 | $111 |
IBTO Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | −1.10% |
| 1 year | +2.05% |
| 3 years (annualised) | +2.74% |
IBTO Annual Returns
Calendar-year total returns of iShares iBonds Dec 2033 Term Treasury ETF, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | −1.10% |
| 2025 | +8.20% |
| 2024 | −0.77% |
| 2023 (Jun–Dec) | +0.97% |
IBTO 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 | −0.2% | +2.3% | −2.2% | −0.1% | −0.1% | +0.2% | −1.1% | — | — | — | — | — |
| 2025 | +0.7% | +2.8% | +0.4% | +1.1% | −1.1% | +1.6% | −0.6% | +1.7% | +0.5% | +0.6% | +0.9% | −0.6% |
| 2024 | −0.1% | −2.1% | +0.7% | −3.1% | +1.8% | +1.2% | +2.9% | +1.4% | +1.3% | −3.3% | +1.0% | −2.2% |
| 2023 | — | — | — | — | — | −0.4% | −0.8% | −0.9% | −3.4% | −2.1% | +4.7% | +4.1% |
IBTO Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 6.73%
- 3-year Sharpe ratio: -0.26 (vs 4.5% risk-free rate)
- Best month: +4.73% (Nov 2023)
- Worst month: −3.40% (Sep 2023)
IBTO Fund Flows
Monthly money in and out of iShares iBonds Dec 2033 Term Treasury ETF, from SEC Form N-PORT.
- 12-month net flow: $107.7M
- 12-month gross sales (incl. reinvestments): $155.1M
- Sales ÷ redemptions: 3.28×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $12.0M | $11.9M | $26K |
| Jun 2026 | $8.4M | $0 | $8.4M |
| May 2026 | $10.8M | $0 | $10.8M |
| Apr 2026 | $12.2M | $4.9M | $7.3M |
| Mar 2026 | $17.2M | $0 | $17.2M |
| Feb 2026 | $13.5M | $0 | $13.5M |
| Jan 2026 | $19.6M | $30.5M | −$10.9M |
| Dec 2025 | $12.3M | $0 | $12.3M |
| Nov 2025 | $13.6M | $0 | $13.6M |
| Oct 2025 | $2.5M | $0 | $2.5M |
| Sep 2025 | $14.8M | $0 | $14.8M |
| Aug 2025 | $18.3M | $0 | $18.3M |
IBTO Assets Under Management
Net assets of iShares iBonds Dec 2033 Term Treasury ETF by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $463.80M |
| 2026-04-30 | $453.65M |
| 2026-01-31 | $420.19M |
| 2025-10-31 | $409.12M |
| 2025-07-31 | $366.54M |
| 2025-04-30 | $336.55M |
| 2025-01-31 | $292.55M |
| 2024-10-31 | $214.08M |
| 2024-07-31 | $207.86M |
| 2024-04-30 | $167.50M |
| 2024-01-31 | $136.31M |
| 2023-10-31 | $68.94M |
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.