CLOU vs. SKYY

Last updated Jun 9, 2026

CLOU (Global X Cloud Computing ETF) and SKYY (First Trust ISE Cloud Computing Index Fund) are both Technology Equities funds - CLOU tracks the Indxx Global Cloud Computing Index while SKYY tracks the ISE Cloud Computing Index. Both are passively managed. Over the past 5 years, CLOU returned -1.97%/yr vs 6.91%/yr for SKYY. Their correlation of 0.92 suggests significant overlap in exposure. CLOU charges 0.68%/yr vs 0.60%/yr for SKYY.

Performance

CLOU vs. SKYY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Global X Cloud Computing ETF (CLOU) and First Trust ISE Cloud Computing Index Fund (SKYY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CLOU achieves a 4.33% return, which is significantly lower than SKYY's 7.59% return.

CLOU

• 1D: -1.17%
• 1M: 2.83%
• YTD: 4.33%
• 6M: 1.94%
• 1Y: 0.21%
• 3Y*: 6.82%
• 5Y*: -1.97%
• 10Y*: —

SKYY

• 1D: -0.58%
• 1M: 7.75%
• YTD: 7.59%
• 6M: 4.67%
• 1Y: 17.57%
• 3Y*: 23.60%
• 5Y*: 6.91%
• 10Y*: 16.64%

*Multi-year figures are annualized to reflect compound growth (CAGR)

CLOU vs. SKYY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
CLOU Global X Cloud Computing ETF	4.33%	-5.59%	5.74%	41.36%	-39.56%	-3.27%	77.18%	4.79%
SKYY First Trust ISE Cloud Computing Index Fund	7.59%	9.20%	35.87%	52.18%	-44.68%	10.62%	57.77%	1.86%

Correlation

The correlation between CLOU and SKYY is 0.87, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.87
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.92
Correlation (All Time) Calculated using the full available price history since Apr 17, 2019	0.92

The correlation between CLOU and SKYY has been stable across timeframes, ranging from 0.87 to 0.92 - a consistent structural relationship.

CLOU vs. SKYY - Sectors Allocation Comparison

Sectors	CLOU	SKYY
Technology	85.3%	88.9%
Real Estate	5.6%	-
Communication Services	5.5%	4.8%
Consumer Cyclical	3.0%	1.6%
Healthcare	0.6%	1.6%
Basic Materials	-	-
Consumer Defensive	-	-
Energy	-	-
Financial Services	-	-
Industrials	-	1.6%
Utilities	-	-

Return for Risk

CLOU vs. SKYY — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

CLOU

CLOU Risk / Return Rank: 10
CLOU Sharpe Ratio Rank: 9
CLOU Sortino Ratio Rank: 10
CLOU Omega Ratio Rank: 10
CLOU Calmar Ratio Rank: 10
CLOU Martin Ratio Rank: 9

SKYY

SKYY Risk / Return Rank: 19
SKYY Sharpe Ratio Rank: 21
SKYY Sortino Ratio Rank: 21
SKYY Omega Ratio Rank: 21
SKYY Calmar Ratio Rank: 18
SKYY Martin Ratio Rank: 17

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

CLOU vs. SKYY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Global X Cloud Computing ETF (CLOU) and First Trust ISE Cloud Computing Index Fund (SKYY). 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.

	CLOU	SKYY	Difference
Sharpe ratio: Return per unit of total volatility	0.01	0.62	-0.62
Sortino ratio: Return per unit of downside risk	0.22	1.06	-0.84
Omega ratio: Gain probability vs. loss probability	1.03	1.13	-0.10
Calmar ratio: Return relative to maximum drawdown	0.01	0.64	-0.64
Martin ratio: Return relative to average drawdown	0.02	1.44	-1.42
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CLOU vs. SKYY - Sharpe Ratio Comparison

The current CLOU Sharpe Ratio is 0.01, which is lower than the SKYY Sharpe Ratio of 0.62. The chart below compares the historical Sharpe Ratios of CLOU and SKYY, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	CLOU	SKYY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.01	0.62	-0.62
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.06	0.23	-0.29
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.62	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.22	0.56	-0.34

Drawdowns

CLOU vs. SKYY - Drawdown Comparison

The maximum CLOU drawdown since its inception was -53.74%, roughly equal to the maximum SKYY drawdown of -53.20%. Use the drawdown chart below to compare losses from any high point for CLOU and SKYY.

Drawdown Indicators

	CLOU	SKYY	Difference
Max Drawdown Largest peak-to-trough decline	-53.74%	-53.20%	-0.54%
Max Drawdown (1Y) Largest decline over 1 year	-27.24%	-27.39%	+0.15%
Max Drawdown (3Y) Largest decline over 3 years	-33.18%	-31.80%	-1.38%
Max Drawdown (5Y) Largest decline over 5 years	-53.74%	-53.20%	-0.54%
Max Drawdown (10Y) Largest decline over 10 years	—	-53.20%	—
Current Drawdown Current decline from peak	-25.28%	-9.81%	-15.47%
Average Drawdown Average peak-to-trough decline	-24.42%	-10.90%	-13.52%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.06%	12.23%	-1.17%

Volatility

CLOU vs. SKYY - Volatility Comparison

Global X Cloud Computing ETF (CLOU) has a higher volatility of 13.96% compared to First Trust ISE Cloud Computing Index Fund (SKYY) at 12.86%. This indicates that CLOU's price experiences larger fluctuations and is considered to be riskier than SKYY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CLOU	SKYY	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.96%	12.86%	+1.10%
Volatility (6M) Calculated over the trailing 6-month period	25.08%	23.70%	+1.38%
Volatility (1Y) Calculated over the trailing 1-year period	29.78%	28.32%	+1.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.60%	30.65%	-0.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.80%	26.90%	+3.90%

CLOU vs. SKYY - Expense Ratio Comparison

CLOU has a 0.68% expense ratio, which is higher than SKYY's 0.60% expense ratio.

Dividends

CLOU vs. SKYY - Dividend Comparison

Neither CLOU nor SKYY has paid dividends to shareholders.

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%
SKYY First Trust ISE Cloud Computing Index Fund	0.00%	0.00%	0.00%	0.00%	0.23%	0.78%	0.17%	0.54%	0.37%	0.27%	0.35%	0.41%

Frequently Asked Questions

Can I hold both CLOU and SKYY in my portfolio?

CLOU and SKYY have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CLOU or SKYY?

CLOU has higher volatility (13.96%) compared to SKYY (12.86%). In terms of maximum drawdown, CLOU dropped -53.74% vs SKYY's -53.20%.

Which ETF is better, CLOU or SKYY?

On 5-year performance, SKYY leads with 6.91% vs -1.97% for CLOU. On fees, SKYY is cheaper at 0.60% per year. On volatility, SKYY has been the lower-risk option at 12.86%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CLOU or SKYY?

Over the 5-year period, SKYY has performed better with a 6.91% return vs -1.97%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CLOU or SKYY?

SKYY is cheaper with a 0.60% expense ratio, compared with 0.68% for CLOU.

Which ETF pays a higher dividend yield, CLOU or SKYY?

CLOU and SKYY have nearly identical dividend yields, around 0.00%.

What is the main difference between CLOU and SKYY?

CLOU tracks Indxx Global Cloud Computing Index, while SKYY tracks ISE Cloud Computing Index. They also come from different issuers: Global X and First Trust. Their fees differ too: 0.68% for CLOU and 0.60% for SKYY.

Which has better risk-adjusted returns?

SKYY currently has the higher Sharpe Ratio (0.62 vs 0.01), 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.