PABU vs. SHY
PABU (iShares Paris-Aligned Climate Optimized MSCI USA ETF) and SHY (iShares 1-3 Year Treasury Bond ETF) are both exchange-traded funds - PABU is a Large Cap Blend Equities fund tracking the MSCI USA Climate Paris Aligned Benchmark Extended Select PAB Index (USD), while SHY is a Government Bonds fund tracking the ICE US Treasury 1-3 Year Index. Both are passively managed. Over the past 3 years, PABU returned 18.02%/yr vs 4.16%/yr for SHY. At a 0.16 correlation, their price movements are largely independent. PABU charges 0.10%/yr vs 0.15%/yr for SHY.
Performance
PABU vs. SHY - Performance Comparison
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Returns By Period
In the year-to-date period, PABU achieves a 6.81% return, which is significantly higher than SHY's 0.60% return.
PABU
- 1D
- 1.98%
- 1M
- 1.91%
- YTD
- 6.81%
- 6M
- 7.83%
- 1Y
- 20.95%
- 3Y*
- 18.02%
- 5Y*
- —
- 10Y*
- —
SHY
- 1D
- 0.05%
- 1M
- 0.36%
- YTD
- 0.60%
- 6M
- 0.79%
- 1Y
- 3.34%
- 3Y*
- 4.16%
- 5Y*
- 1.78%
- 10Y*
- 1.65%
PABU vs. SHY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
PABU iShares Paris-Aligned Climate Optimized MSCI USA ETF | 6.81% | 13.08% | 24.84% | 29.51% | -15.45% |
SHY iShares 1-3 Year Treasury Bond ETF | 0.60% | 4.95% | 3.92% | 4.16% | -2.36% |
Correlation
The correlation between PABU and SHY is 0.23, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.23 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.15 |
Correlation (All Time) Calculated using the full available price history since Feb 11, 2022 | 0.16 |
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Return for Risk
PABU vs. SHY — Risk / Return Rank
PABU
SHY
PABU vs. SHY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Paris-Aligned Climate Optimized MSCI USA ETF (PABU) and iShares 1-3 Year Treasury Bond ETF (SHY). 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.
| PABU | SHY | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.03 | ||
| Sortino ratioReturn per unit of downside risk | -2.09 | ||
| Omega ratioGain probability vs. loss probability | 1.27 | 1.52 | -0.25 |
| Calmar ratioReturn relative to maximum drawdown | 1.57 | 3.78 | -2.21 |
| Martin ratioReturn relative to average drawdown | 5.37 | 15.00 | -9.63 |
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Drawdowns
PABU vs. SHY - Drawdown Comparison
The maximum PABU drawdown since its inception was -22.76%, which is greater than SHY's maximum drawdown of -5.71%. Use the drawdown chart below to compare losses from any high point for PABU and SHY.
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Drawdown Indicators
| PABU | SHY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -22.76% | -5.71% | -17.05% |
Max Drawdown (1Y)Largest decline over 1 year | -13.40% | -0.89% | -12.51% |
Max Drawdown (3Y)Largest decline over 3 years | -20.85% | -0.97% | -19.88% |
Max Drawdown (5Y)Largest decline over 5 years | — | -5.71% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -5.71% | — |
Current DrawdownCurrent decline from peak | -3.61% | -0.14% | -3.47% |
Average DrawdownAverage peak-to-trough decline | -5.62% | -0.52% | -5.10% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.91% | 0.22% | +3.69% |
Volatility
PABU vs. SHY - Volatility Comparison
iShares Paris-Aligned Climate Optimized MSCI USA ETF (PABU) has a higher volatility of 5.97% compared to iShares 1-3 Year Treasury Bond ETF (SHY) at 0.40%. This indicates that PABU's price experiences larger fluctuations and is considered to be riskier than SHY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PABU | SHY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.97% | 0.40% | +5.57% |
Volatility (6M)Calculated over the trailing 6-month period | 11.32% | 0.95% | +10.37% |
Volatility (1Y)Calculated over the trailing 1-year period | 14.06% | 1.33% | +12.73% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.76% | 1.99% | +16.77% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.76% | 1.57% | +17.19% |
PABU vs. SHY - Expense Ratio Comparison
PABU has a 0.10% expense ratio, which is lower than SHY's 0.15% 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
PABU vs. SHY - Dividend Comparison
PABU's dividend yield for the trailing twelve months is around 1.09%, less than SHY's 3.68% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PABU iShares Paris-Aligned Climate Optimized MSCI USA ETF | 1.09% | 0.90% | 1.00% | 1.06% | 1.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SHY iShares 1-3 Year Treasury Bond ETF | 3.68% | 3.81% | 3.92% | 2.99% | 1.30% | 0.26% | 0.94% | 2.12% | 1.72% | 0.98% | 0.71% | 0.54% |
Frequently Asked Questions
PABU and SHY have a correlation of 0.23, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PABU has higher volatility (5.97%) compared to SHY (0.40%). In terms of maximum drawdown, PABU dropped -22.76% vs SHY's -5.71%.
On 3-year performance, PABU leads with 18.02% vs 4.16% for SHY. On fees, PABU is cheaper at 0.10% per year. On volatility, SHY has been the lower-risk option at 0.40%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, PABU has performed better with a 18.02% return vs 4.16%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
PABU is cheaper with a 0.10% expense ratio, compared with 0.15% for SHY.
SHY has the higher dividend yield at 3.68%, compared with 1.09% for PABU.
PABU is categorized as Large Cap Blend Equities, while SHY is Government Bonds. PABU tracks MSCI USA Climate Paris Aligned Benchmark Extended Select PAB Index (USD), while SHY tracks ICE US Treasury 1-3 Year Index. Their fees differ too: 0.10% for PABU and 0.15% for SHY.
SHY currently has the higher Sharpe Ratio (2.53 vs 1.50), 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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