CYSE.L vs. IUSF.L

Last updated Jun 5, 2026

CYSE.L (WisdomTree Cybersecurity UCITS ETF USD Acc) and IUSF.L (iShares Edge MSCI USA Size Factor UCITS ETF) are both exchange-traded funds - CYSE.L is a Technology Equities fund tracking the MSCI World/Information Tech NR USD, while IUSF.L is a Mid Cap Blend Equities fund tracking the Russell Mid Cap TR USD. Both are passively managed. Over the past 5 years, CYSE.L returned 10.59%/yr vs 7.45%/yr for IUSF.L. A 0.58 correlation means they provide meaningful diversification when combined. CYSE.L charges 0.45%/yr vs 0.20%/yr for IUSF.L.

Performance

CYSE.L vs. IUSF.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in WisdomTree Cybersecurity UCITS ETF USD Acc (CYSE.L) and iShares Edge MSCI USA Size Factor UCITS ETF (IUSF.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CYSE.L achieves a 24.45% return, which is significantly higher than IUSF.L's 7.69% return.

CYSE.L

• 1D: -1.44%
• 1M: 26.86%
• YTD: 24.45%
• 6M: 17.83%
• 1Y: 12.00%
• 3Y*: 18.44%
• 5Y*: 10.59%
• 10Y*: —

IUSF.L

• 1D: 0.64%
• 1M: 4.37%
• YTD: 7.69%
• 6M: 7.96%
• 1Y: 17.90%
• 3Y*: 11.63%
• 5Y*: 7.45%
• 10Y*: —

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

CYSE.L vs. IUSF.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
CYSE.L WisdomTree Cybersecurity UCITS ETF USD Acc	24.45%	-8.72%	13.36%	60.49%	-36.28%	11.39%
IUSF.L iShares Edge MSCI USA Size Factor UCITS ETF	7.69%	1.00%	14.60%	10.79%	-8.57%	26.53%

Correlation

The correlation between CYSE.L and IUSF.L is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.34
Correlation (3Y) Calculated over the trailing 3-year period	0.54
Correlation (5Y) Calculated over the trailing 5-year period	0.58
Correlation (All Time) Calculated using the full available price history since Jan 29, 2021	0.58

Over the past year, the correlation between CYSE.L and IUSF.L has dropped to 0.34 - well below their long-term average of 0.58, suggesting their price drivers have been diverging.

CYSE.L vs. IUSF.L - Sectors Allocation Comparison

Sectors	CYSE.L	IUSF.L
Technology	100.0%	21.2%
Basic Materials	-	5.3%
Communication Services	-	3.9%
Consumer Cyclical	-	9.9%
Consumer Defensive	-	5.7%
Energy	-	2.3%
Financial Services	-	12.4%
Healthcare	-	9.3%
Industrials	-	16.5%
Real Estate	-	7.1%
Utilities	-	6.3%

Return for Risk

CYSE.L vs. IUSF.L — Risk / Return Rank

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

CYSE.L

CYSE.L Risk / Return Rank: 15
CYSE.L Sharpe Ratio Rank: 15
CYSE.L Sortino Ratio Rank: 16
CYSE.L Omega Ratio Rank: 17
CYSE.L Calmar Ratio Rank: 14
CYSE.L Martin Ratio Rank: 13

IUSF.L

IUSF.L Risk / Return Rank: 46
IUSF.L Sharpe Ratio Rank: 46
IUSF.L Sortino Ratio Rank: 45
IUSF.L Omega Ratio Rank: 43
IUSF.L Calmar Ratio Rank: 50
IUSF.L Martin Ratio Rank: 46

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.

CYSE.L vs. IUSF.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for WisdomTree Cybersecurity UCITS ETF USD Acc (CYSE.L) and iShares Edge MSCI USA Size Factor UCITS ETF (IUSF.L). 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.

	CYSE.L	IUSF.L	Difference
Sharpe ratio: Return per unit of total volatility	0.37	1.59	-1.21
Sortino ratio: Return per unit of downside risk	0.73	2.21	-1.49
Omega ratio: Gain probability vs. loss probability	1.10	1.28	-0.18
Calmar ratio: Return relative to maximum drawdown	0.38	2.41	-2.03
Martin ratio: Return relative to average drawdown	0.87	7.40	-6.52
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CYSE.L vs. IUSF.L - Sharpe Ratio Comparison

The current CYSE.L Sharpe Ratio is 0.37, which is lower than the IUSF.L Sharpe Ratio of 1.59. The chart below compares the historical Sharpe Ratios of CYSE.L and IUSF.L, 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

	CYSE.L	IUSF.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.37	1.59	-1.21
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.34	0.47	-0.13
Sharpe Ratio (All Time) Calculated using the full available price history	0.24	0.56	-0.32

Drawdowns

CYSE.L vs. IUSF.L - Drawdown Comparison

The maximum CYSE.L drawdown since its inception was -46.58%, which is greater than IUSF.L's maximum drawdown of -33.67%. Use the drawdown chart below to compare losses from any high point for CYSE.L and IUSF.L.

Drawdown Indicators

	CYSE.L	IUSF.L	Difference
Max Drawdown Largest peak-to-trough decline	-46.58%	-33.67%	-12.91%
Max Drawdown (1Y) Largest decline over 1 year	-31.22%	-7.39%	-23.83%
Max Drawdown (3Y) Largest decline over 3 years	-35.88%	-22.73%	-13.15%
Max Drawdown (5Y) Largest decline over 5 years	-46.58%	-22.73%	-23.85%
Current Drawdown Current decline from peak	-4.84%	0.00%	-4.84%
Average Drawdown Average peak-to-trough decline	-19.16%	-5.45%	-13.71%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.71%	2.41%	+11.30%

Volatility

CYSE.L vs. IUSF.L - Volatility Comparison

WisdomTree Cybersecurity UCITS ETF USD Acc (CYSE.L) has a higher volatility of 13.86% compared to iShares Edge MSCI USA Size Factor UCITS ETF (IUSF.L) at 2.67%. This indicates that CYSE.L's price experiences larger fluctuations and is considered to be riskier than IUSF.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CYSE.L	IUSF.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.86%	2.67%	+11.19%
Volatility (6M) Calculated over the trailing 6-month period	28.40%	7.66%	+20.74%
Volatility (1Y) Calculated over the trailing 1-year period	32.03%	11.24%	+20.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	31.30%	15.95%	+15.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	31.34%	17.36%	+13.98%

CYSE.L vs. IUSF.L - Expense Ratio Comparison

CYSE.L has a 0.45% expense ratio, which is higher than IUSF.L's 0.20% expense ratio.

Dividends

CYSE.L vs. IUSF.L - Dividend Comparison

Neither CYSE.L nor IUSF.L has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022
CYSE.L WisdomTree Cybersecurity UCITS ETF USD Acc	0.00%	0.00%	0.00%	0.00%	0.24%
IUSF.L iShares Edge MSCI USA Size Factor UCITS ETF	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both CYSE.L and IUSF.L in my portfolio?

CYSE.L and IUSF.L have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, CYSE.L or IUSF.L?

On fees, IUSF.L is cheaper at 0.20% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, CYSE.L or IUSF.L?

IUSF.L is cheaper with a 0.20% expense ratio, compared with 0.45% for CYSE.L.

What is the main difference between CYSE.L and IUSF.L?

CYSE.L is categorized as Technology Equities, while IUSF.L is Mid Cap Blend Equities. CYSE.L tracks MSCI World/Information Tech NR USD, while IUSF.L tracks Russell Mid Cap TR USD. They also come from different issuers: WisdomTree and iShares. Their fees differ too: 0.45% for CYSE.L and 0.20% for IUSF.L.