SKYY vs. SKYU

Last updated Jun 5, 2026

SKYY (First Trust ISE Cloud Computing Index Fund) and SKYU (ProShares Ultra Nasdaq Cloud Computing ETF) are both exchange-traded funds - SKYY is a Technology Equities fund tracking the ISE Cloud Computing Index, while SKYU is a Leveraged Equities fund tracking the ISE Cloud Computing Index (200%). Both are passively managed. Over the past 5 years, SKYY returned 8.50%/yr vs 2.14%/yr for SKYU. With a 0.96 correlation, they move nearly in lockstep. SKYY charges 0.60%/yr vs 0.95%/yr for SKYU.

Performance

SKYY vs. SKYU - Performance Comparison

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

Returns By Period

In the year-to-date period, SKYY achieves a 13.77% return, which is significantly lower than SKYU's 20.72% return.

SKYY

• 1D: 0.17%
• 1M: 13.59%
• YTD: 13.77%
• 6M: 12.75%
• 1Y: 26.33%
• 3Y*: 25.31%
• 5Y*: 8.50%
• 10Y*: 17.15%

SKYU

• 1D: 0.53%
• 1M: 27.03%
• YTD: 20.72%
• 6M: 18.01%
• 1Y: 41.23%
• 3Y*: 38.09%
• 5Y*: 2.14%
• 10Y*: —

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

SKYY vs. SKYU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
SKYY First Trust ISE Cloud Computing Index Fund	13.77%	9.20%	35.87%	52.18%	-44.68%	6.19%
SKYU ProShares Ultra Nasdaq Cloud Computing ETF	20.72%	2.76%	65.79%	105.76%	-75.95%	7.15%

Correlation

The correlation between SKYY and SKYU is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	1.00
Correlation (3Y) Calculated over the trailing 3-year period	0.99
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (All Time) Calculated using the full available price history since Jan 22, 2021	0.96

The correlation between SKYY and SKYU has been stable across timeframes, ranging from 0.96 to 1.00 - a consistent structural relationship.

SKYY vs. SKYU - Sectors Allocation Comparison

Sectors	SKYY	SKYU
Technology	88.9%	51.5%
Communication Services	4.8%	4.7%
Consumer Cyclical	1.6%	2.4%
Healthcare	1.6%	0.3%
Industrials	1.6%	2.5%
Basic Materials	-	-
Consumer Defensive	-	-
Energy	-	-
Financial Services	-	-
Real Estate	-	-
Utilities	-	-

Return for Risk

SKYY vs. SKYU — Risk / Return Rank

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

SKYY

SKYY Risk / Return Rank: 25
SKYY Sharpe Ratio Rank: 27
SKYY Sortino Ratio Rank: 28
SKYY Omega Ratio Rank: 28
SKYY Calmar Ratio Rank: 22
SKYY Martin Ratio Rank: 20

SKYU

SKYU Risk / Return Rank: 22
SKYU Sharpe Ratio Rank: 22
SKYU Sortino Ratio Rank: 25
SKYU Omega Ratio Rank: 25
SKYU Calmar Ratio Rank: 20
SKYU Martin Ratio Rank: 18

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.

SKYY vs. SKYU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for First Trust ISE Cloud Computing Index Fund (SKYY) and ProShares Ultra Nasdaq Cloud Computing ETF (SKYU). 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.

	SKYY	SKYU	Difference
Sharpe ratio: Return per unit of total volatility	0.95	0.74	+0.21
Sortino ratio: Return per unit of downside risk	1.48	1.35	+0.13
Omega ratio: Gain probability vs. loss probability	1.18	1.16	+0.02
Calmar ratio: Return relative to maximum drawdown	0.97	0.82	+0.14
Martin ratio: Return relative to average drawdown	2.16	1.73	+0.43
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SKYY vs. SKYU - Sharpe Ratio Comparison

The current SKYY Sharpe Ratio is 0.95, which is comparable to the SKYU Sharpe Ratio of 0.74. The chart below compares the historical Sharpe Ratios of SKYY and SKYU, 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

	SKYY	SKYU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.95	0.74	+0.21
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.28	0.03	+0.24
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.64	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.58	0.03	+0.56

Drawdowns

SKYY vs. SKYU - Drawdown Comparison

The maximum SKYY drawdown since its inception was -53.20%, smaller than the maximum SKYU drawdown of -83.01%. Use the drawdown chart below to compare losses from any high point for SKYY and SKYU.

Drawdown Indicators

	SKYY	SKYU	Difference
Max Drawdown Largest peak-to-trough decline	-53.20%	-83.01%	+29.81%
Max Drawdown (1Y) Largest decline over 1 year	-27.39%	-50.23%	+22.84%
Max Drawdown (3Y) Largest decline over 3 years	-31.80%	-55.71%	+23.91%
Max Drawdown (5Y) Largest decline over 5 years	-53.20%	-83.01%	+29.81%
Max Drawdown (10Y) Largest decline over 10 years	-53.20%	—	—
Current Drawdown Current decline from peak	-4.63%	-22.26%	+17.63%
Average Drawdown Average peak-to-trough decline	-10.90%	-49.16%	+38.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	12.20%	23.88%	-11.68%

Volatility

SKYY vs. SKYU - Volatility Comparison

The current volatility for First Trust ISE Cloud Computing Index Fund (SKYY) is 11.57%, while ProShares Ultra Nasdaq Cloud Computing ETF (SKYU) has a volatility of 22.68%. This indicates that SKYY experiences smaller price fluctuations and is considered to be less risky than SKYU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SKYY	SKYU	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.57%	22.68%	-11.11%
Volatility (6M) Calculated over the trailing 6-month period	23.13%	46.60%	-23.47%
Volatility (1Y) Calculated over the trailing 1-year period	27.83%	55.92%	-28.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.57%	61.88%	-31.31%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.85%	61.12%	-34.27%

SKYY vs. SKYU - Expense Ratio Comparison

SKYY has a 0.60% expense ratio, which is lower than SKYU's 0.95% expense ratio.

Dividends

SKYY vs. SKYU - Dividend Comparison

SKYY has not paid dividends to shareholders, while SKYU's dividend yield for the trailing twelve months is around 0.58%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SKYU ProShares Ultra Nasdaq Cloud Computing ETF	0.58%	0.56%	0.21%	0.00%	0.00%	0.00%	0.00%	0.00%	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 SKYY and SKYU in my portfolio?

With a correlation of 1.00, SKYY and SKYU move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, SKYY or SKYU?

SKYU has higher volatility (22.68%) compared to SKYY (11.57%). In terms of maximum drawdown, SKYY dropped -53.20% vs SKYU's -83.01%.

Which ETF is better, SKYY or SKYU?

On 5-year performance, SKYY leads with 8.50% vs 2.14% for SKYU. On fees, SKYY is cheaper at 0.60% per year. On volatility, SKYY has been the lower-risk option at 11.57%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SKYY or SKYU?

Over the 5-year period, SKYY has performed better with a 8.50% return vs 2.14%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SKYY or SKYU?

SKYY is cheaper with a 0.60% expense ratio, compared with 0.95% for SKYU.

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

SKYU has the higher dividend yield at 0.58%, compared with 0.00% for SKYY.

What is the main difference between SKYY and SKYU?

SKYY is categorized as Technology Equities, while SKYU is Leveraged Equities. SKYY tracks ISE Cloud Computing Index, while SKYU tracks ISE Cloud Computing Index (200%). They also come from different issuers: First Trust and ProShares. Their fees differ too: 0.60% for SKYY and 0.95% for SKYU.

Which has better risk-adjusted returns?

SKYY currently has the higher Sharpe Ratio (0.95 vs 0.74), 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.