IBIK vs. IBIL
IBIK (iShares iBonds Oct 2034 Term TIPS ETF) and IBIL (iShares iBonds Oct 2035 Term TIPS ETF) are both Inflation-Protected Bonds funds from iShares - IBIK tracks the iBonds Oct 2034 Term TIPS Index while IBIL tracks the ICE 2035 Maturity US Treasury TIPS Index. Both are passively managed. Over the past year, IBIK returned 4.28% vs 4.95% for IBIL. Their correlation of 0.89 suggests significant overlap in exposure. Both charge a 0.10% expense ratio.
Performance
IBIK vs. IBIL - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, IBIK achieves a 0.96% return, which is significantly lower than IBIL's 1.24% return.
IBIK
- 1D
- 0.43%
- 1M
- 0.14%
- YTD
- 0.96%
- 6M
- 0.83%
- 1Y
- 4.28%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IBIL
- 1D
- 0.54%
- 1M
- 0.26%
- YTD
- 1.24%
- 6M
- 1.14%
- 1Y
- 4.95%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IBIK vs. IBIL - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
IBIK iShares iBonds Oct 2034 Term TIPS ETF | 0.96% | 4.76% |
IBIL iShares iBonds Oct 2035 Term TIPS ETF | 1.24% | 4.77% |
Correlation
The correlation between IBIK and IBIL is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.89 |
Correlation (All Time) Calculated using the full available price history since Mar 26, 2025 | 0.89 |
The correlation between IBIK and IBIL has been stable across timeframes, ranging from 0.89 to 0.89 - a consistent structural relationship.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
IBIK vs. IBIL — Risk / Return Rank
IBIK
IBIL
IBIK vs. IBIL - 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 2035 Term TIPS ETF (IBIL). 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.
| IBIK | IBIL | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.13 | ||
| Sortino ratioReturn per unit of downside risk | +0.25 | ||
| Omega ratioGain probability vs. loss probability | 1.17 | 1.18 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 1.72 | 1.80 | -0.09 |
| Martin ratioReturn relative to average drawdown | 5.61 | 4.22 | +1.39 |
Loading charts...
Drawdowns
IBIK vs. IBIL - Drawdown Comparison
The maximum IBIK drawdown since its inception was -5.59%, which is greater than IBIL's maximum drawdown of -5.28%. Use the drawdown chart below to compare losses from any high point for IBIK and IBIL.
Loading charts...
Drawdown Indicators
| IBIK | IBIL | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.59% | -5.28% | -0.31% |
Max Drawdown (1Y)Largest decline over 1 year | -2.50% | -2.76% | +0.26% |
Current DrawdownCurrent decline from peak | -1.13% | -1.00% | -0.13% |
Average DrawdownAverage peak-to-trough decline | -1.24% | -1.46% | +0.22% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.76% | 1.18% | -0.42% |
Volatility
IBIK vs. IBIL - Volatility Comparison
iShares iBonds Oct 2034 Term TIPS ETF (IBIK) and iShares iBonds Oct 2035 Term TIPS ETF (IBIL) have volatilities of 1.63% and 1.63%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| IBIK | IBIL | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.63% | 1.63% | 0.00% |
Volatility (6M)Calculated over the trailing 6-month period | 3.09% | 3.26% | -0.17% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.25% | 5.63% | -1.38% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.36% | 8.11% | -2.75% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.36% | 8.11% | -2.75% |
IBIK vs. IBIL - Expense Ratio Comparison
Both IBIK and IBIL 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. IBIL - Dividend Comparison
IBIK's dividend yield for the trailing twelve months is around 3.75%, more than IBIL's 3.48% yield.
| Position | TTM | 2025 | 2024 |
|---|---|---|---|
IBIK iShares iBonds Oct 2034 Term TIPS ETF | 3.75% | 4.43% | 2.67% |
IBIL iShares iBonds Oct 2035 Term TIPS ETF | 3.48% | 2.93% | 0.00% |
Frequently Asked Questions
IBIK and IBIL have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IBIL has higher volatility (1.63%) compared to IBIK (1.63%). In terms of maximum drawdown, IBIK dropped -5.59% vs IBIL's -5.28%.
On 1-year performance, IBIL leads with 4.95% vs 4.28% for IBIK. Both ETFs have the same 0.10% expense ratio. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, IBIL has performed better with a 4.95% return vs 4.28%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IBIK and IBIL have the same expense ratio: 0.10% per year.
IBIK has the higher dividend yield at 3.75%, compared with 3.48% for IBIL.
IBIK tracks iBonds Oct 2034 Term TIPS Index, while IBIL tracks ICE 2035 Maturity US Treasury TIPS Index.
IBIK currently has the higher Sharpe Ratio (1.01 vs 0.88), 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.
Find the right allocation for IBIK and IBIL
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer