PABU vs. VOX
PABU (iShares Paris-Aligned Climate Optimized MSCI USA ETF) and VOX (Vanguard Communication Services 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 VOX is a Communications Equities fund tracking the MSCI US Investable Market Communication Services 25/50 Index. Both are passively managed. Over the past 3 years, PABU returned 17.67%/yr vs 21.71%/yr for VOX. A 0.78 correlation means they provide meaningful diversification when combined. PABU charges 0.10%/yr vs 0.09%/yr for VOX.
Performance
PABU vs. VOX - Performance Comparison
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Returns By Period
In the year-to-date period, PABU achieves a 4.30% return, which is significantly higher than VOX's -5.59% return.
PABU
- 1D
- -0.85%
- 1M
- -2.15%
- YTD
- 4.30%
- 6M
- 3.73%
- 1Y
- 18.73%
- 3Y*
- 17.67%
- 5Y*
- —
- 10Y*
- —
VOX
- 1D
- -2.41%
- 1M
- -6.74%
- YTD
- -5.59%
- 6M
- -5.26%
- 1Y
- 13.76%
- 3Y*
- 21.71%
- 5Y*
- 6.17%
- 10Y*
- 8.39%
PABU vs. VOX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
PABU iShares Paris-Aligned Climate Optimized MSCI USA ETF | 4.30% | 13.08% | 24.84% | 29.51% | -15.45% |
VOX Vanguard Communication Services ETF | -5.59% | 26.27% | 33.12% | 44.81% | -33.04% |
Correlation
The correlation between PABU and VOX is 0.68, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.68 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.75 |
Correlation (All Time) Calculated using the full available price history since Feb 11, 2022 | 0.78 |
The correlation between PABU and VOX has been stable across timeframes, ranging from 0.68 to 0.78 - a consistent structural relationship.
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Return for Risk
PABU vs. VOX — Risk / Return Rank
PABU
VOX
PABU vs. VOX - 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 Vanguard Communication Services ETF (VOX). 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 | VOX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.45 | ||
| Sortino ratioReturn per unit of downside risk | +0.51 | ||
| Omega ratioGain probability vs. loss probability | 1.24 | 1.16 | +0.08 |
| Calmar ratioReturn relative to maximum drawdown | 1.40 | 1.02 | +0.38 |
| Martin ratioReturn relative to average drawdown | 4.73 | 3.65 | +1.09 |
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Drawdowns
PABU vs. VOX - Drawdown Comparison
The maximum PABU drawdown since its inception was -22.76%, smaller than the maximum VOX drawdown of -57.18%. Use the drawdown chart below to compare losses from any high point for PABU and VOX.
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Drawdown Indicators
| PABU | VOX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -22.76% | -57.18% | +34.42% |
Max Drawdown (1Y)Largest decline over 1 year | -13.40% | -13.56% | +0.16% |
Max Drawdown (3Y)Largest decline over 3 years | -20.85% | -21.15% | +0.30% |
Max Drawdown (5Y)Largest decline over 5 years | — | -46.76% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -46.76% | — |
Current DrawdownCurrent decline from peak | -5.88% | -8.76% | +2.88% |
Average DrawdownAverage peak-to-trough decline | -5.62% | -11.90% | +6.28% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.97% | 3.78% | +0.19% |
Volatility
PABU vs. VOX - Volatility Comparison
iShares Paris-Aligned Climate Optimized MSCI USA ETF (PABU) has a higher volatility of 6.19% compared to Vanguard Communication Services ETF (VOX) at 5.45%. This indicates that PABU's price experiences larger fluctuations and is considered to be riskier than VOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PABU | VOX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.19% | 5.45% | +0.74% |
Volatility (6M)Calculated over the trailing 6-month period | 11.49% | 11.94% | -0.45% |
Volatility (1Y)Calculated over the trailing 1-year period | 14.19% | 15.83% | -1.64% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.76% | 21.24% | -2.48% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.76% | 20.94% | -2.18% |
PABU vs. VOX - Expense Ratio Comparison
PABU has a 0.10% expense ratio, which is higher than VOX's 0.09% 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
PABU vs. VOX - Dividend Comparison
PABU's dividend yield for the trailing twelve months is around 0.94%, less than VOX's 1.04% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PABU iShares Paris-Aligned Climate Optimized MSCI USA ETF | 0.94% | 0.90% | 1.00% | 1.06% | 1.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
VOX Vanguard Communication Services ETF | 1.04% | 0.95% | 1.05% | 1.03% | 0.88% | 0.93% | 0.73% | 0.90% | 2.77% | 3.83% | 2.67% | 3.55% |
Frequently Asked Questions
PABU and VOX have a correlation of 0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PABU has higher volatility (6.19%) compared to VOX (5.45%). In terms of maximum drawdown, PABU dropped -22.76% vs VOX's -57.18%.
On 3-year performance, VOX leads with 21.71% vs 17.67% for PABU. On fees, VOX is cheaper at 0.09% per year. On volatility, VOX has been the lower-risk option at 5.45%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, VOX has performed better with a 21.71% return vs 17.67%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
VOX is cheaper with a 0.09% expense ratio, compared with 0.10% for PABU.
VOX has the higher dividend yield at 1.04%, compared with 0.94% for PABU.
PABU is categorized as Large Cap Blend Equities, while VOX is Communications Equities. PABU tracks MSCI USA Climate Paris Aligned Benchmark Extended Select PAB Index (USD), while VOX tracks MSCI US Investable Market Communication Services 25/50 Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.10% for PABU and 0.09% for VOX.
PABU currently has the higher Sharpe Ratio (1.33 vs 0.87), 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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