CLOD vs. XLK

Last updated Aug 2, 2026

CLOD (Themes Cloud Computing ETF) and XLK (State Street Technology Select Sector SPDR ETF) are both Technology Equities funds - CLOD tracks the Solactive Cloud Technology Index while XLK tracks the S&P Technology Select Sector Daily Capped 35/20 Index. Both are passively managed. Over the past year, CLOD returned -2.27% vs 37.14% for XLK. Their 0.71 correlation means they have sometimes moved together and sometimes differently. CLOD charges 0.35%/yr vs 0.08%/yr for XLK.

Performance

CLOD vs. XLK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Themes Cloud Computing ETF (CLOD) and State Street Technology Select Sector SPDR ETF (XLK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CLOD achieves a -0.40% return, which is significantly lower than XLK's 22.09% return.

CLOD

• 1D: 1.84%
• 1M: 2.61%
• 6M: 10.30%
• YTD: -0.40%
• 1Y: -2.27%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 10.71%

XLK

• 1D: -0.22%
• 1M: -2.90%
• 6M: 22.17%
• YTD: 22.09%
• 1Y: 37.14%
• 3Y*: 26.04%
• 5Y*: 18.87%
• 10Y*: 23.77%
• ALL TIME*: 10.21%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
CLOD Themes Cloud Computing ETF	$10.26K	$13.57K	$43.79K
XLK State Street Technology Select Sector SPDR ETF	$1.61B	$1.67B	$2.22B

CLOD vs. XLK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
CLOD Themes Cloud Computing ETF	-0.40%	7.53%	21.03%	0.77%
XLK State Street Technology Select Sector SPDR ETF	22.09%	24.61%	21.63%	1.13%

Correlation

The correlation between CLOD and XLK is 0.57, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.57
Correlation (All Time) Calculated using the full available price history since Dec 15, 2023	0.71

The correlation between CLOD and XLK shifts across timeframes, from 0.57 (1 year) to 0.71 (all time), reflecting how their relationship changes across market environments.

CLOD vs. XLK - Sectors Allocation Comparison

Sectors	CLOD	XLK
Technology	83.5%	99.1%
Consumer Cyclical	7.3%	-
Communication Services	5.9%	0.9%
Industrials	1.5%	0.1%
Financial Services	0.8%	-
Basic Materials	-	-
Consumer Defensive	-	-
Energy	-	0.2%
Healthcare	-	-
Real Estate	-	-
Utilities	-	-

Return for Risk

CLOD vs. XLK — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

CLOD

CLOD Risk / Return Rank: 8
CLOD Sharpe Ratio Rank: 8
CLOD Sortino Ratio Rank: 8
CLOD Omega Ratio Rank: 8
CLOD Calmar Ratio Rank: 9
CLOD Martin Ratio Rank: 9

XLK

XLK Risk / Return Rank: 55
XLK Sharpe Ratio Rank: 57
XLK Sortino Ratio Rank: 53
XLK Omega Ratio Rank: 52
XLK Calmar Ratio Rank: 62
XLK Martin Ratio Rank: 50

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

CLOD vs. XLK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Themes Cloud Computing ETF (CLOD) and State Street Technology Select Sector SPDR ETF (XLK). 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.

	CLOD	XLK	Difference
Sharpe ratio: Return per unit of total volatility	-0.19	1.34	-1.53
Sortino ratio: Return per unit of downside risk	-0.09	1.85	-1.94
Omega ratio: Gain probability vs. loss probability	0.99	1.23	-0.24
Calmar ratio: Return relative to maximum drawdown	-0.16	2.16	-2.32
Martin ratio: Return relative to average drawdown	-0.33	5.85	-6.18

CLOD vs. XLK - Sharpe Ratio Comparison

The current CLOD Sharpe Ratio is -0.19, which is lower than the XLK Sharpe Ratio of 1.34. The chart below compares the historical Sharpe Ratios of CLOD and XLK, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

CLOD vs. XLK - Drawdown Comparison

The maximum CLOD drawdown since its inception was -31.36%, smaller than the maximum XLK drawdown of -82.05%. Use the drawdown chart below to compare losses from any high point for CLOD and XLK.

Drawdown Indicators

	CLOD	XLK	Difference
Max Drawdown Largest peak-to-trough decline	-31.36%	-82.05%	+50.69%
Max Drawdown (1Y) Largest decline over 1 year	-31.36%	-15.92%	-15.44%
Max Drawdown (3Y) Largest decline over 3 years	—	-25.66%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-33.56%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-33.56%	—
Current Drawdown Current decline from peak	-10.11%	-11.43%	+1.32%
Average Drawdown Average peak-to-trough decline	-7.87%	-34.80%	+26.93%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.28%	5.86%	+9.42%

Volatility

CLOD vs. XLK - Volatility Comparison

The current volatility for Themes Cloud Computing ETF (CLOD) is 6.11%, while State Street Technology Select Sector SPDR ETF (XLK) has a volatility of 9.58%. This indicates that CLOD experiences smaller price fluctuations and is considered to be less risky than XLK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CLOD	XLK	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.11%	9.58%	-3.47%
Volatility (6M) Calculated over the trailing 6-month period	22.32%	21.81%	+0.51%
Volatility (1Y) Calculated over the trailing 1-year period	26.45%	25.59%	+0.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.50%	25.75%	-1.25%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.50%	24.90%	-0.40%

CLOD vs. XLK - Expense Ratio Comparison

CLOD has a 0.35% expense ratio, which is higher than XLK's 0.08% expense ratio.

Dividends

CLOD vs. XLK - Dividend Comparison

CLOD's dividend yield for the trailing twelve months is around 1.47%, more than XLK's 0.45% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CLOD Themes Cloud Computing ETF	1.47%	1.47%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
XLK State Street Technology Select Sector SPDR ETF	0.45%	0.54%	0.66%	0.76%	1.04%	0.65%	0.92%	1.16%	1.60%	1.37%	1.74%	1.79%

Frequently Asked Questions

Can I hold both CLOD and XLK in my portfolio?

CLOD and XLK have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CLOD or XLK?

XLK has higher volatility (9.58%) compared to CLOD (6.11%). In terms of maximum drawdown, CLOD dropped -31.36% vs XLK's -82.05%.

Which ETF is better, CLOD or XLK?

On 1-year performance, XLK leads with 37.14% vs -2.27% for CLOD. On fees, XLK is cheaper at 0.08% per year. On volatility, CLOD has been the lower-risk option at 6.11%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CLOD or XLK?

Over the 1-year period, XLK has performed better with a 37.14% return vs -2.27%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CLOD or XLK?

XLK is cheaper with a 0.08% expense ratio, compared with 0.35% for CLOD.

Which ETF pays a higher dividend yield, CLOD or XLK?

CLOD has the higher dividend yield at 1.47%, compared with 0.45% for XLK.

What is the main difference between CLOD and XLK?

CLOD tracks Solactive Cloud Technology Index, while XLK tracks S&P Technology Select Sector Daily Capped 35/20 Index. They also come from different issuers: Themes and State Street. Their fees differ too: 0.35% for CLOD and 0.08% for XLK.

Which has better risk-adjusted returns?

XLK currently has the higher Sharpe Ratio (1.34 vs -0.19), 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.