AOK vs. RBIL
AOK (iShares Core 30/70 Conservative Allocation ETF) and RBIL (F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF) are both exchange-traded funds - AOK is a Diversified Portfolio fund tracking the S&P Target Risk Conservative Index, while RBIL is a Inflation-Protected Bonds fund tracking the Bloomberg US Ultrashort TIPS 1-13 Months Index. Both are passively managed. Over the past year, AOK returned 11.77% vs 3.95% for RBIL. At a correlation of -0.20, they often move in opposite directions. AOK charges 0.15%/yr vs 0.17%/yr for RBIL.
Performance
AOK vs. RBIL - Performance Comparison
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Returns By Period
In the year-to-date period, AOK achieves a 4.44% return, which is significantly higher than RBIL's 2.31% return.
AOK
- 1D
- -0.22%
- 1M
- 0.89%
- YTD
- 4.44%
- 6M
- 4.18%
- 1Y
- 11.77%
- 3Y*
- 9.25%
- 5Y*
- 3.80%
- 10Y*
- 5.26%
RBIL
- 1D
- -0.05%
- 1M
- -0.20%
- YTD
- 2.31%
- 6M
- 2.35%
- 1Y
- 3.95%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
AOK vs. RBIL - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
AOK iShares Core 30/70 Conservative Allocation ETF | 4.44% | 9.13% |
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF | 2.31% | 2.85% |
Correlation
The correlation between AOK and RBIL is -0.20, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.20 |
Correlation (All Time) Calculated using the full available price history since Feb 25, 2025 | -0.20 |
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Return for Risk
AOK vs. RBIL — Risk / Return Rank
AOK
RBIL
AOK vs. RBIL - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core 30/70 Conservative Allocation ETF (AOK) and F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL). 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.
| AOK | RBIL | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.20 | ||
| Sortino ratioReturn per unit of downside risk | -3.56 | ||
| Omega ratioGain probability vs. loss probability | 1.38 | 2.06 | -0.68 |
| Calmar ratioReturn relative to maximum drawdown | 2.63 | 7.59 | -4.96 |
| Martin ratioReturn relative to average drawdown | 11.08 | 44.07 | -33.00 |
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Drawdowns
AOK vs. RBIL - Drawdown Comparison
The maximum AOK drawdown since its inception was -18.94%, which is greater than RBIL's maximum drawdown of -0.52%. Use the drawdown chart below to compare losses from any high point for AOK and RBIL.
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Drawdown Indicators
| AOK | RBIL | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.94% | -0.52% | -18.42% |
Max Drawdown (1Y)Largest decline over 1 year | -4.50% | -0.52% | -3.98% |
Max Drawdown (3Y)Largest decline over 3 years | -6.37% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -18.94% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -18.94% | — | — |
Current DrawdownCurrent decline from peak | -0.24% | -0.51% | +0.27% |
Average DrawdownAverage peak-to-trough decline | -2.36% | -0.07% | -2.29% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.06% | 0.09% | +0.97% |
Volatility
AOK vs. RBIL - Volatility Comparison
iShares Core 30/70 Conservative Allocation ETF (AOK) has a higher volatility of 2.17% compared to F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL) at 0.36%. This indicates that AOK's price experiences larger fluctuations and is considered to be riskier than RBIL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AOK | RBIL | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.17% | 0.36% | +1.81% |
Volatility (6M)Calculated over the trailing 6-month period | 4.82% | 0.85% | +3.97% |
Volatility (1Y)Calculated over the trailing 1-year period | 5.99% | 0.95% | +5.04% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 7.15% | 1.07% | +6.08% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 6.74% | 1.07% | +5.67% |
AOK vs. RBIL - Expense Ratio Comparison
AOK has a 0.15% expense ratio, which is lower than RBIL's 0.17% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
AOK vs. RBIL - Dividend Comparison
AOK's dividend yield for the trailing twelve months is around 3.27%, less than RBIL's 4.38% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AOK iShares Core 30/70 Conservative Allocation ETF | 3.27% | 3.28% | 3.23% | 2.93% | 2.25% | 1.55% | 2.10% | 2.71% | 2.68% | 2.91% | 2.14% | 2.02% |
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF | 4.38% | 3.65% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
AOK and RBIL have a correlation of -0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AOK has higher volatility (2.17%) compared to RBIL (0.36%). In terms of maximum drawdown, AOK dropped -18.94% vs RBIL's -0.52%.
On 1-year performance, AOK leads with 11.77% vs 3.95% for RBIL. On fees, AOK is cheaper at 0.15% per year. On volatility, RBIL has been the lower-risk option at 0.36%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, AOK has performed better with a 11.77% return vs 3.95%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
AOK is cheaper with a 0.15% expense ratio, compared with 0.17% for RBIL.
RBIL has the higher dividend yield at 4.38%, compared with 3.27% for AOK.
AOK is categorized as Diversified Portfolio, while RBIL is Inflation-Protected Bonds. AOK tracks S&P Target Risk Conservative Index, while RBIL tracks Bloomberg US Ultrashort TIPS 1-13 Months Index. They also come from different issuers: iShares and F/m. Their fees differ too: 0.15% for AOK and 0.17% for RBIL.
RBIL currently has the higher Sharpe Ratio (4.18 vs 1.98), 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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