AOK vs. TFLO
AOK (iShares Core Conservative Allocation ETF) and TFLO (iShares Treasury Floating Rate Bond ETF) are both exchange-traded funds - AOK is a Diversified Portfolio fund tracking the S&P Target Risk Conservative Index, while TFLO is a Government Bonds fund tracking the Bloomberg U.S. Treasury Floating Rate Index. Both are passively managed. Over the past 10 years, AOK returned 5.14%/yr vs 2.37%/yr for TFLO. At a correlation of -0.03, they often move in opposite directions. AOK charges 0.25%/yr vs 0.15%/yr for TFLO.
Performance
AOK vs. TFLO - Performance Comparison
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Returns By Period
In the year-to-date period, AOK achieves a 4.26% return, which is significantly higher than TFLO's 1.59% return. Over the past 10 years, AOK has outperformed TFLO with an annualized return of 5.14%, while TFLO has yielded a comparatively lower 2.37% annualized return.
AOK
- 1D
- -0.41%
- 1M
- 1.66%
- YTD
- 4.26%
- 6M
- 4.14%
- 1Y
- 12.11%
- 3Y*
- 9.28%
- 5Y*
- 3.71%
- 10Y*
- 5.14%
TFLO
- 1D
- 0.02%
- 1M
- 0.31%
- YTD
- 1.59%
- 6M
- 1.92%
- 1Y
- 3.97%
- 3Y*
- 4.74%
- 5Y*
- 3.63%
- 10Y*
- 2.37%
AOK vs. TFLO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AOK iShares Core Conservative Allocation ETF | 4.26% | 11.26% | 6.58% | 10.85% | -14.16% | 4.87% | 9.33% | 13.90% | -3.09% | 9.70% |
TFLO iShares Treasury Floating Rate Bond ETF | 1.59% | 4.22% | 5.34% | 5.12% | 1.99% | -0.02% | 0.43% | 2.04% | 1.76% | 1.01% |
Correlation
The correlation between AOK and TFLO is 0.01, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.01 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.04 |
Correlation (5Y) Calculated over the trailing 5-year period | -0.03 |
Correlation (10Y) Calculated over the trailing 10-year period | -0.03 |
Correlation (All Time) Calculated using the full available price history since Feb 5, 2014 | -0.03 |
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Return for Risk
AOK vs. TFLO — Risk / Return Rank
AOK
TFLO
AOK vs. TFLO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core Conservative Allocation ETF (AOK) and iShares Treasury Floating Rate Bond ETF (TFLO). 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.
| AOK | TFLO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -11.98 | ||
| Sortino ratioReturn per unit of downside risk | -47.85 | ||
| Omega ratioGain probability vs. loss probability | 1.41 | 13.94 | -12.54 |
| Calmar ratioReturn relative to maximum drawdown | 2.70 | 201.22 | -198.52 |
| Martin ratioReturn relative to average drawdown | 11.50 | 823.26 | -811.77 |
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
| AOK | TFLO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.11 | 14.09 | -11.98 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.53 | 10.30 | -9.78 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.77 | 5.21 | -4.44 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.71 | 0.99 | -0.27 |
Drawdowns
AOK vs. TFLO - Drawdown Comparison
The maximum AOK drawdown since its inception was -18.94%, which is greater than TFLO's maximum drawdown of -5.01%. Use the drawdown chart below to compare losses from any high point for AOK and TFLO.
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Drawdown Indicators
| AOK | TFLO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.94% | -5.01% | -13.93% |
Max Drawdown (1Y)Largest decline over 1 year | -4.50% | -0.02% | -4.48% |
Max Drawdown (3Y)Largest decline over 3 years | -6.37% | -0.04% | -6.33% |
Max Drawdown (5Y)Largest decline over 5 years | -18.94% | -0.13% | -18.81% |
Max Drawdown (10Y)Largest decline over 10 years | -18.94% | -0.16% | -18.78% |
Current DrawdownCurrent decline from peak | -0.41% | 0.00% | -0.41% |
Average DrawdownAverage peak-to-trough decline | -2.37% | -0.10% | -2.27% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.06% | 0.00% | +1.06% |
Volatility
AOK vs. TFLO - Volatility Comparison
iShares Core Conservative Allocation ETF (AOK) has a higher volatility of 1.97% compared to iShares Treasury Floating Rate Bond ETF (TFLO) at 0.07%. This indicates that AOK's price experiences larger fluctuations and is considered to be riskier than TFLO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AOK | TFLO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.97% | 0.07% | +1.90% |
Volatility (6M)Calculated over the trailing 6-month period | 4.47% | 0.20% | +4.27% |
Volatility (1Y)Calculated over the trailing 1-year period | 5.76% | 0.28% | +5.48% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 7.10% | 0.35% | +6.75% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 6.71% | 0.46% | +6.25% |
AOK vs. TFLO - Expense Ratio Comparison
AOK has a 0.25% expense ratio, which is higher than TFLO's 0.15% expense ratio. However, 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. TFLO - Dividend Comparison
AOK's dividend yield for the trailing twelve months is around 3.28%, less than TFLO's 3.90% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AOK iShares Core Conservative Allocation ETF | 3.28% | 3.28% | 3.23% | 2.93% | 2.25% | 1.55% | 2.10% | 2.71% | 2.68% | 2.91% | 2.14% | 2.02% |
TFLO iShares Treasury Floating Rate Bond ETF | 3.90% | 4.16% | 5.21% | 4.88% | 1.68% | 0.00% | 0.36% | 2.08% | 1.65% | 0.86% | 0.31% | 0.15% |
Frequently Asked Questions
AOK and TFLO have a correlation of 0.01, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AOK has higher volatility (1.97%) compared to TFLO (0.07%). In terms of maximum drawdown, AOK dropped -18.94% vs TFLO's -5.01%.
On 10-year performance, AOK leads with 5.14% vs 2.37% for TFLO. On fees, TFLO is cheaper at 0.15% per year. On volatility, TFLO has been the lower-risk option at 0.07%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, AOK has performed better with a 5.14% return vs 2.37%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
TFLO is cheaper with a 0.15% expense ratio, compared with 0.25% for AOK.
TFLO has the higher dividend yield at 3.90%, compared with 3.28% for AOK.
AOK is categorized as Diversified Portfolio, while TFLO is Government Bonds. AOK tracks S&P Target Risk Conservative Index, while TFLO tracks Bloomberg U.S. Treasury Floating Rate Index. Their fees differ too: 0.25% for AOK and 0.15% for TFLO.
TFLO currently has the higher Sharpe Ratio (14.09 vs 2.11), 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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