IEI vs. BUCK
IEI (iShares 3-7 Year Treasury Bond ETF) and BUCK (Simplify Treasury Option Income ETF) are both Government Bonds funds. IEI is passively managed, while BUCK is actively managed. Over the past 3 years, IEI returned 3.52%/yr vs 5.27%/yr for BUCK. At a 0.10 correlation, their price movements are largely independent. IEI charges 0.15%/yr vs 0.35%/yr for BUCK.
Performance
IEI vs. BUCK - Performance Comparison
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Returns By Period
In the year-to-date period, IEI achieves a -0.42% return, which is significantly lower than BUCK's 1.90% return.
IEI
- 1D
- -0.13%
- 1M
- -0.17%
- YTD
- -0.42%
- 6M
- -0.49%
- 1Y
- 3.28%
- 3Y*
- 3.52%
- 5Y*
- 0.23%
- 10Y*
- 1.28%
BUCK
- 1D
- 0.02%
- 1M
- 0.38%
- YTD
- 1.90%
- 6M
- 2.09%
- 1Y
- 7.95%
- 3Y*
- 5.27%
- 5Y*
- —
- 10Y*
- —
IEI vs. BUCK - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
IEI iShares 3-7 Year Treasury Bond ETF | -0.42% | 6.96% | 1.81% | 4.42% | 1.42% |
BUCK Simplify Treasury Option Income ETF | 1.90% | 4.13% | 7.25% | 4.63% | 0.39% |
Correlation
The correlation between IEI and BUCK is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.20 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.14 |
Correlation (All Time) Calculated using the full available price history since Oct 31, 2022 | 0.10 |
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Return for Risk
IEI vs. BUCK — Risk / Return Rank
IEI
BUCK
IEI vs. BUCK - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares 3-7 Year Treasury Bond ETF (IEI) and Simplify Treasury Option Income ETF (BUCK). 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.
| IEI | BUCK | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.45 | ||
| Sortino ratioReturn per unit of downside risk | -2.18 | ||
| Omega ratioGain probability vs. loss probability | 1.19 | 1.54 | -0.35 |
| Calmar ratioReturn relative to maximum drawdown | 1.32 | 6.11 | -4.79 |
| Martin ratioReturn relative to average drawdown | 3.96 | 32.31 | -28.36 |
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
| IEI | BUCK | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.09 | 2.54 | -1.45 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.05 | — | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.33 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.70 | 1.47 | -0.77 |
Drawdowns
IEI vs. BUCK - Drawdown Comparison
The maximum IEI drawdown since its inception was -14.60%, which is greater than BUCK's maximum drawdown of -5.43%. Use the drawdown chart below to compare losses from any high point for IEI and BUCK.
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Drawdown Indicators
| IEI | BUCK | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -14.60% | -5.43% | -9.17% |
Max Drawdown (1Y)Largest decline over 1 year | -2.50% | -1.31% | -1.19% |
Max Drawdown (3Y)Largest decline over 3 years | -3.66% | -5.43% | +1.77% |
Max Drawdown (5Y)Largest decline over 5 years | -13.88% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -14.60% | — | — |
Current DrawdownCurrent decline from peak | -1.85% | -0.04% | -1.81% |
Average DrawdownAverage peak-to-trough decline | -2.67% | -0.49% | -2.18% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.83% | 0.25% | +0.58% |
Volatility
IEI vs. BUCK - Volatility Comparison
iShares 3-7 Year Treasury Bond ETF (IEI) has a higher volatility of 0.91% compared to Simplify Treasury Option Income ETF (BUCK) at 0.70%. This indicates that IEI's price experiences larger fluctuations and is considered to be riskier than BUCK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IEI | BUCK | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.91% | 0.70% | +0.21% |
Volatility (6M)Calculated over the trailing 6-month period | 2.13% | 1.53% | +0.60% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.04% | 3.14% | -0.10% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.77% | 3.49% | +1.28% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.93% | 3.49% | +0.44% |
IEI vs. BUCK - Expense Ratio Comparison
IEI has a 0.15% expense ratio, which is lower than BUCK's 0.35% expense ratio.
Dividends
IEI vs. BUCK - Dividend Comparison
IEI's dividend yield for the trailing twelve months is around 3.64%, less than BUCK's 7.42% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BUCK Simplify Treasury Option Income ETF | 7.42% | 7.59% | 8.84% | 4.84% | 0.59% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
IEI iShares 3-7 Year Treasury Bond ETF | 3.64% | 3.48% | 3.18% | 2.36% | 1.37% | 0.73% | 1.12% | 2.01% | 1.95% | 1.51% | 1.33% | 1.39% |
Frequently Asked Questions
IEI and BUCK 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.
IEI has higher volatility (0.91%) compared to BUCK (0.70%). In terms of maximum drawdown, IEI dropped -14.60% vs BUCK's -5.43%.
On 3-year performance, BUCK leads with 5.27% vs 3.52% for IEI. On fees, IEI is cheaper at 0.15% per year. On volatility, BUCK has been the lower-risk option at 0.70%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, BUCK has performed better with a 5.27% return vs 3.52%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IEI is cheaper with a 0.15% expense ratio, compared with 0.35% for BUCK.
BUCK has the higher dividend yield at 7.42%, compared with 3.64% for IEI.
They also come from different issuers: iShares and Simplify. Their fees differ too: 0.15% for IEI and 0.35% for BUCK.
BUCK currently has the higher Sharpe Ratio (2.54 vs 1.09), 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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