iShares iBonds Dec 2054 Term Treasury ETF (IBGK) Performance
IBGK total return
Distributions reinvested · as of Oct 23, 2026- YTD
- −3.4% since Dec 31, 2025
- 1 year
- −6.6% total return
- Since first price
- −2.6% since 2024
IBGK trailing returns vs AGG, TLT, SPY
| Period | IBGK total return | Price only | U.S. bonds (AGG) | 20+ yr Treasuries (TLT) | S&P 500 (SPY) |
|---|---|---|---|---|---|
| 1 month | +1.5% | +1.1% | +0.9% | +1.5% | −1.0% |
| 3 months | −1.1% | −2.3% | −0.4% | −1.0% | +3.2% |
| 6 months | −3.7% | −6.0% | −1.5% | −3.8% | +7.8% |
| YTD | −3.4% | −6.8% | −1.0% | −3.4% | +12.3% |
| 1 year | −6.6% | −10.9% | −1.1% | −6.9% | +14.4% |
| Since inceptionJun 12, 2024 | −2.6% | −12.7% | — | — | — |
Total return from adjusted closes (distributions reinvested, before tax). Periods of 3 years or more are also shown annualized. Price only excludes distributions.
Growth of $10,000: IBGK vs AGG
From Jun 12, 2024: IBGK grew to $9,739, AGG to $10,802.
Year-end values with distributions reinvested, no taxes or trading costs. Start: first common trading day of both funds.
IBGK returns by calendar year
1 of 1 full years positive. Best 2025 (+3.7%), worst 2025 (+3.7%). 2026 is year to date.
IBGK annual returns table
| Year | IBGK | Largest drop | AGG | TLT | SPY |
|---|---|---|---|---|---|
| 2026YTD | −3.4% | −12.1% | −1.0% | −3.4% | +12.3% |
| 2025 | +3.7% | −9.3% | +7.2% | +4.3% | +17.7% |
Largest drop = deepest fall from a high within that calendar year.
Calendar-year return vs largest drop within the year
Most years include a sizable fall at some point even when the year ends higher.
IBGK largest drawdowns
Now 12.0% below the high| Peak | Decline | Bottom | Recovered | Fall | Underwater |
|---|---|---|---|---|---|
| Sep 16, 2024 | −16.5% | Oct 5, 2026 | not yet | 2.1 years | 2.1 years so far |
Declines from a closing high (distributions reinvested) of 5% or more. Underwater = time from the peak until the old high was regained.
IBGK risk statistics
| Statistic | Since 2024 |
|---|---|
| Annualized return | −2.9% |
| Volatility (annualized) | 10.7% |
| Sharpe ratio | -0.60 |
| Sortino ratio | -0.73 |
| Best month | +5.9% |
| Worst month | −6.1% |
| Best 12 months | +3.7% |
| Worst 12 months | −8.3% |
| Positive months | 48% |
| Beta vs S&P 500 | — |
| Correlation with S&P 500 | — |
From monthly total returns. Sharpe and Sortino use 1–3 month T-bills (BIL) as the risk-free rate, so they need history from 2007 on.
IBGK rolling returns
| Holding period | Periods | Worst | Median | Best | Positive |
|---|---|---|---|---|---|
| 1-year | 17 | −8.3% | −0.4% | +3.7% | 35% |
Every holding period starting at a month-end since 2024. Returns for 3 years and longer are annualized.
IBGK performance overview
iShares iBonds Dec 2054 Term Treasury ETF (IBGK) returned −6.6% over the past year, with distributions reinvested. Since its first recorded price on Jun 12, 2024 it has returned −2.6%. Over the same year U.S. bonds (AGG) returned −1.1%.
The deepest decline was −16.5%, from Sep 16, 2024 to Oct 5, 2026; the fund has not yet regained that high. Volatility has been 10.7% a year.
Related: IBGK chart, IBGK dividends, IBGK bond profile. See the IBGK overview for the latest quote and fund facts.
IBGK performance FAQ
What is the IBGK return over the past year?
IBGK returned −6.6% over the 12 months to October 23, 2026, including reinvested distributions. On price alone it fell 10.9%.
How much would $10,000 invested in IBGK be worth?
$10,000 invested in IBGK at its first recorded close on June 12, 2024 would be worth about $9,739 on October 23, 2026 with distributions reinvested.
What is the biggest drawdown of IBGK?
The largest peak-to-trough decline was −16.5% between September 16, 2024 and October 5, 2026. It has not yet recovered to that high; it is 12.0% below its peak.
How volatile is IBGK?
Over the past history IBGK had an annualized volatility of 10.7% and a Sharpe ratio of -0.60 (excess return over 1–3 month T-bills per unit of risk).