CLOU vs. VOX
CLOU (Global X Cloud Computing ETF) and VOX (Vanguard Communication Services ETF) are both exchange-traded funds - CLOU is a Technology Equities fund tracking the Indxx Global Cloud Computing Index, 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 5 years, CLOU returned -5.18%/yr vs 6.02%/yr for VOX. A 0.69 correlation means they provide meaningful diversification when combined. CLOU charges 0.68%/yr vs 0.09%/yr for VOX.
Performance
CLOU vs. VOX - Performance Comparison
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Returns By Period
In the year-to-date period, CLOU achieves a -4.95% return, which is significantly higher than VOX's -5.35% return.
CLOU
- 1D
- 0.42%
- 1M
- -5.99%
- YTD
- -4.95%
- 6M
- -5.99%
- 1Y
- -5.37%
- 3Y*
- 3.57%
- 5Y*
- -5.18%
- 10Y*
- —
VOX
- 1D
- 0.26%
- 1M
- -6.50%
- YTD
- -5.35%
- 6M
- -5.46%
- 1Y
- 12.86%
- 3Y*
- 21.81%
- 5Y*
- 6.02%
- 10Y*
- 8.42%
CLOU vs. VOX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
CLOU Global X Cloud Computing ETF | -4.95% | -5.59% | 5.74% | 41.36% | -39.56% | -3.27% | 77.18% | 4.06% |
VOX Vanguard Communication Services ETF | -5.35% | 26.27% | 33.12% | 44.81% | -38.85% | 13.83% | 29.12% | 8.07% |
Correlation
The correlation between CLOU and VOX is 0.41, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.41 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.58 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.70 |
Correlation (All Time) Calculated using the full available price history since Apr 16, 2019 | 0.69 |
Over the past year, the correlation between CLOU and VOX has dropped to 0.41 - well below their long-term average of 0.69, suggesting their price drivers have been diverging.
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Return for Risk
CLOU vs. VOX — Risk / Return Rank
CLOU
VOX
CLOU vs. VOX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Global X Cloud Computing ETF (CLOU) 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.
| CLOU | VOX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.00 | ||
| Sortino ratioReturn per unit of downside risk | -1.30 | ||
| Omega ratioGain probability vs. loss probability | 0.99 | 1.15 | -0.16 |
| Calmar ratioReturn relative to maximum drawdown | -0.20 | 0.95 | -1.15 |
| Martin ratioReturn relative to average drawdown | -0.47 | 3.37 | -3.84 |
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Drawdowns
CLOU vs. VOX - Drawdown Comparison
The maximum CLOU drawdown since its inception was -53.74%, smaller than the maximum VOX drawdown of -57.18%. Use the drawdown chart below to compare losses from any high point for CLOU and VOX.
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Drawdown Indicators
| CLOU | VOX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -53.74% | -57.18% | +3.44% |
Max Drawdown (1Y)Largest decline over 1 year | -27.24% | -13.56% | -13.68% |
Max Drawdown (3Y)Largest decline over 3 years | -33.18% | -21.15% | -12.03% |
Max Drawdown (5Y)Largest decline over 5 years | -53.74% | -46.76% | -6.98% |
Max Drawdown (10Y)Largest decline over 10 years | — | -46.76% | — |
Current DrawdownCurrent decline from peak | -31.93% | -8.53% | -23.40% |
Average DrawdownAverage peak-to-trough decline | -24.43% | -11.90% | -12.53% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 11.46% | 3.82% | +7.64% |
Volatility
CLOU vs. VOX - Volatility Comparison
Global X Cloud Computing ETF (CLOU) has a higher volatility of 13.72% compared to Vanguard Communication Services ETF (VOX) at 5.44%. This indicates that CLOU'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
| CLOU | VOX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 13.72% | 5.44% | +8.28% |
Volatility (6M)Calculated over the trailing 6-month period | 25.33% | 11.89% | +13.44% |
Volatility (1Y)Calculated over the trailing 1-year period | 29.89% | 15.80% | +14.09% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 30.65% | 21.24% | +9.41% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 30.76% | 20.93% | +9.83% |
CLOU vs. VOX - Expense Ratio Comparison
CLOU has a 0.68% expense ratio, which is higher than VOX's 0.09% expense ratio.
Dividends
CLOU vs. VOX - Dividend Comparison
CLOU has not paid dividends to shareholders, while VOX's dividend yield for the trailing twelve months is around 1.04%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CLOU Global X Cloud Computing ETF | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 1.76% | 0.00% | 0.05% | 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
CLOU and VOX have a correlation of 0.41, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CLOU has higher volatility (13.72%) compared to VOX (5.44%). In terms of maximum drawdown, CLOU dropped -53.74% vs VOX's -57.18%.
On 5-year performance, VOX leads with 6.02% vs -5.18% for CLOU. On fees, VOX is cheaper at 0.09% per year. On volatility, VOX has been the lower-risk option at 5.44%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, VOX has performed better with a 6.02% return vs -5.18%. 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 0.68% for CLOU.
VOX has the higher dividend yield at 1.04%, compared with 0.00% for CLOU.
CLOU is categorized as Technology Equities, while VOX is Communications Equities. CLOU tracks Indxx Global Cloud Computing Index, while VOX tracks MSCI US Investable Market Communication Services 25/50 Index. They also come from different issuers: Global X and Vanguard. Their fees differ too: 0.68% for CLOU and 0.09% for VOX.
VOX currently has the higher Sharpe Ratio (0.82 vs -0.18), 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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