IBGB vs. IBGK
IBGB (iShares iBonds Dec 2045 Term Treasury ETF) and IBGK (iShares iBonds Dec 2054 Term Treasury ETF) are both exchange-traded funds - IBGB is a Government Bonds fund tracking the ICE 2045 Maturity US Treasury Index, while IBGK is a Long-Term Bond fund tracking the ICE 2054 Maturity US Treasury Index. Both are passively managed. Over the past year, IBGB returned -0.26% vs -1.47% for IBGK. Their 0.99 correlation means they have historically moved very closely together. Both charge a 0.07% expense ratio.
Performance
IBGB vs. IBGK - Performance Comparison
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Returns By Period
In the year-to-date period, IBGB achieves a -1.86% return, which is significantly higher than IBGK's -2.48% return.
IBGB
- 1D
- 0.77%
- 1M
- -2.11%
- 6M
- -1.81%
- YTD
- -1.86%
- 1Y
- -0.26%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- 0.52%
IBGK
- 1D
- 0.72%
- 1M
- -2.74%
- 6M
- -2.22%
- YTD
- -2.48%
- 1Y
- -1.47%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- -1.12%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $32.56K | $33.15K | $77.72K | |
| $13.32K | $16.53K | $30.87K |
IBGB vs. IBGK - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
IBGB iShares iBonds Dec 2045 Term Treasury ETF | -1.86% | 2.62% |
IBGK iShares iBonds Dec 2054 Term Treasury ETF | -2.48% | 0.61% |
Correlation
The correlation between IBGB and IBGK is 0.99 - they have historically moved very closely together. At this level, their price movements offset little of one another.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.99 |
Correlation (All Time) Calculated using the full available price history since Mar 26, 2025 | 0.99 |
The correlation between IBGB and IBGK has been stable across timeframes, ranging from 0.99 to 0.99 - a consistent structural relationship.
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Return for Risk
IBGB vs. IBGK — Risk / Return Rank
IBGB
IBGK
IBGB vs. IBGK - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2045 Term Treasury ETF (IBGB) and iShares iBonds Dec 2054 Term Treasury ETF (IBGK). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| IBGB | IBGK | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.13 | ||
| Sortino ratioReturn per unit of downside risk | +0.18 | ||
| Omega ratioGain probability vs. loss probability | 1.00 | 0.98 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | -0.04 | -0.20 | +0.16 |
| Martin ratioReturn relative to average drawdown | -0.08 | -0.42 | +0.34 |
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Drawdowns
IBGB vs. IBGK - Drawdown Comparison
The maximum IBGB drawdown since its inception was -8.09%, smaller than the maximum IBGK drawdown of -14.62%. Use the drawdown chart below to compare losses from any high point for IBGB and IBGK.
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Drawdown Indicators
| IBGB | IBGK | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -8.09% | -14.62% | +6.53% |
Max Drawdown (1Y)Largest decline over 1 year | -6.79% | -7.48% | +0.69% |
Current DrawdownCurrent decline from peak | -5.59% | -11.12% | +5.53% |
Average DrawdownAverage peak-to-trough decline | -3.31% | -8.16% | +4.85% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.07% | 3.46% | -0.39% |
Volatility
IBGB vs. IBGK - Volatility Comparison
The current volatility for iShares iBonds Dec 2045 Term Treasury ETF (IBGB) is 2.36%, while iShares iBonds Dec 2054 Term Treasury ETF (IBGK) has a volatility of 2.60%. This indicates that IBGB experiences smaller price fluctuations and is considered to be less risky than IBGK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IBGB | IBGK | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.36% | 2.60% | -0.24% |
Volatility (6M)Calculated over the trailing 6-month period | 6.21% | 6.61% | -0.40% |
Volatility (1Y)Calculated over the trailing 1-year period | 8.02% | 8.87% | -0.85% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 9.37% | 11.62% | -2.25% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 9.37% | 11.62% | -2.25% |
IBGB vs. IBGK - Expense Ratio Comparison
Both IBGB and IBGK have an expense ratio of 0.07%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
IBGB vs. IBGK - Dividend Comparison
IBGB's dividend yield for the trailing twelve months is around 4.74%, less than IBGK's 4.80% yield.
| Position | TTM | 2025 | 2024 |
|---|---|---|---|
IBGB iShares iBonds Dec 2045 Term Treasury ETF | 4.74% | 3.53% | 0.00% |
IBGK iShares iBonds Dec 2054 Term Treasury ETF | 4.80% | 4.59% | 3.15% |
Frequently Asked Questions
With a correlation of 0.99, IBGB and IBGK move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
IBGK has higher volatility (2.60%) compared to IBGB (2.36%). In terms of maximum drawdown, IBGB dropped -8.09% vs IBGK's -14.62%.
On 1-year performance, IBGB leads with -0.26% vs -1.47% for IBGK. Both ETFs have the same 0.07% expense ratio. On volatility, IBGB has been the lower-risk option at 2.36%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, IBGB has performed better with a -0.26% return vs -1.47%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IBGB and IBGK have the same expense ratio: 0.07% per year.
IBGK has the higher dividend yield at 4.80%, compared with 4.74% for IBGB.
IBGB is categorized as Government Bonds, while IBGK is Long-Term Bond. IBGB tracks ICE 2045 Maturity US Treasury Index, while IBGK tracks ICE 2054 Maturity US Treasury Index.
IBGB currently has the higher Sharpe Ratio (-0.03 vs -0.17), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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