IBIK vs. IBII
IBIK (iShares iBonds Oct 2034 Term TIPS ETF) and IBII (iShares iBonds Oct 2032 Term TIPS ETF) are both Inflation-Protected Bonds funds from iShares - IBIK tracks the iBonds Oct 2034 Term TIPS Index while IBII tracks the ICE 2032 Maturity US Inflation-Linked Treasury Index. Both are passively managed. Over the past year, IBIK returned 5.54% vs 5.28% for IBII. With a 0.96 correlation, they move nearly in lockstep. Both charge a 0.10% expense ratio.
Performance
IBIK vs. IBII - Performance Comparison
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Returns By Period
In the year-to-date period, IBIK achieves a 1.43% return, which is significantly lower than IBII's 1.63% return.
IBIK
- 1D
- -0.02%
- 1M
- -0.29%
- YTD
- 1.43%
- 6M
- 1.01%
- 1Y
- 5.54%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IBII
- 1D
- 0.02%
- 1M
- -0.38%
- YTD
- 1.63%
- 6M
- 1.21%
- 1Y
- 5.28%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IBIK vs. IBII - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
IBIK iShares iBonds Oct 2034 Term TIPS ETF | 1.43% | 8.78% | 1.43% |
IBII iShares iBonds Oct 2032 Term TIPS ETF | 1.63% | 8.65% | 2.04% |
Correlation
The correlation between IBIK and IBII is 0.96 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.96 |
Correlation (All Time) Calculated using the full available price history since May 28, 2024 | 0.96 |
The correlation between IBIK and IBII has been stable across timeframes, ranging from 0.96 to 0.96 - a consistent structural relationship.
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Return for Risk
IBIK vs. IBII — Risk / Return Rank
IBIK
IBII
IBIK vs. IBII - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Oct 2034 Term TIPS ETF (IBIK) and iShares iBonds Oct 2032 Term TIPS ETF (IBII). 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.
| IBIK | IBII | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.22 | ||
| Sortino ratioReturn per unit of downside risk | -0.37 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 1.28 | -0.05 |
| Calmar ratioReturn relative to maximum drawdown | 2.22 | 2.68 | -0.45 |
| Martin ratioReturn relative to average drawdown | 7.74 | 9.32 | -1.58 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| IBIK | IBII | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.33 | 1.56 | -0.22 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.08 | 1.12 | -0.04 |
Drawdowns
IBIK vs. IBII - Drawdown Comparison
The maximum IBIK drawdown since its inception was -5.59%, which is greater than IBII's maximum drawdown of -4.65%. Use the drawdown chart below to compare losses from any high point for IBIK and IBII.
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Drawdown Indicators
| IBIK | IBII | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.59% | -4.65% | -0.94% |
Max Drawdown (1Y)Largest decline over 1 year | -2.50% | -1.98% | -0.52% |
Current DrawdownCurrent decline from peak | -0.67% | -0.65% | -0.02% |
Average DrawdownAverage peak-to-trough decline | -1.24% | -1.12% | -0.12% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.72% | 0.58% | +0.14% |
Volatility
IBIK vs. IBII - Volatility Comparison
iShares iBonds Oct 2034 Term TIPS ETF (IBIK) has a higher volatility of 1.19% compared to iShares iBonds Oct 2032 Term TIPS ETF (IBII) at 0.89%. This indicates that IBIK's price experiences larger fluctuations and is considered to be riskier than IBII based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IBIK | IBII | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.19% | 0.89% | +0.30% |
Volatility (6M)Calculated over the trailing 6-month period | 2.82% | 2.29% | +0.53% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.20% | 3.42% | +0.78% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.33% | 5.42% | -0.09% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.33% | 5.42% | -0.09% |
IBIK vs. IBII - Expense Ratio Comparison
Both IBIK and IBII have an expense ratio of 0.10%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
IBIK vs. IBII - Dividend Comparison
IBIK's dividend yield for the trailing twelve months is around 3.73%, less than IBII's 4.05% yield.
| Position | TTM | 2025 | 2024 | 2023 |
|---|---|---|---|---|
IBII iShares iBonds Oct 2032 Term TIPS ETF | 4.05% | 4.80% | 4.76% | 1.10% |
IBIK iShares iBonds Oct 2034 Term TIPS ETF | 3.73% | 4.43% | 2.67% | 0.00% |
Frequently Asked Questions
With a correlation of 0.96, IBIK and IBII 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.
IBIK has higher volatility (1.19%) compared to IBII (0.89%). In terms of maximum drawdown, IBIK dropped -5.59% vs IBII's -4.65%.
On 1-year performance, IBIK leads with 5.54% vs 5.28% for IBII. Both ETFs have the same 0.10% expense ratio. On volatility, IBII has been the lower-risk option at 0.89%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, IBIK has performed better with a 5.54% return vs 5.28%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IBIK and IBII have the same expense ratio: 0.10% per year.
IBII has the higher dividend yield at 4.05%, compared with 3.73% for IBIK.
IBIK tracks iBonds Oct 2034 Term TIPS Index, while IBII tracks ICE 2032 Maturity US Inflation-Linked Treasury Index.
IBII currently has the higher Sharpe Ratio (1.56 vs 1.33), 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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