FSKY.L vs. LOCK.L

Last updated Jun 4, 2026

FSKY.L (First Trust Cloud Computing UCITS ETF Class A USD Accumulation) and LOCK.L (iShares Digital Security UCITS ETF USD Acc) are both Technology Equities funds tracking the MSCI World/Information Tech NR USD, from First Trust and iShares respectively. Both are passively managed. Over the past 5 years, FSKY.L returned 9.62%/yr vs 11.66%/yr for LOCK.L. Their correlation of 0.85 suggests significant overlap in exposure. FSKY.L charges 0.60%/yr vs 0.40%/yr for LOCK.L.

Performance

FSKY.L vs. LOCK.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in First Trust Cloud Computing UCITS ETF Class A USD Accumulation (FSKY.L) and iShares Digital Security UCITS ETF USD Acc (LOCK.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

FSKY.L is traded in GBp, while LOCK.L is traded in USD. To make them comparable, the LOCK.L values have been converted to GBp using the latest available exchange rates.

Returns By Period

In the year-to-date period, FSKY.L achieves a 13.35% return, which is significantly lower than LOCK.L's 22.33% return.

FSKY.L

• 1D: -2.66%
• 1M: 21.58%
• YTD: 13.35%
• 6M: 13.33%
• 1Y: 28.16%
• 3Y*: 22.30%
• 5Y*: 9.62%
• 10Y*: —

LOCK.L

• 1D: -0.67%
• 1M: 16.06%
• YTD: 22.33%
• 6M: 23.40%
• 1Y: 29.69%
• 3Y*: 19.43%
• 5Y*: 11.66%
• 10Y*: —

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

FSKY.L vs. LOCK.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
FSKY.L First Trust Cloud Computing UCITS ETF Class A USD Accumulation	13.35%	1.06%	37.83%	47.12%	-39.21%	12.29%	54.03%	20.71%	0.00%
LOCK.L iShares Digital Security UCITS ETF USD Acc	22.33%	3.43%	18.88%	27.28%	-20.67%	17.58%	23.25%	23.56%	0.28%

Correlation

The correlation between FSKY.L and LOCK.L is 0.81, 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	0.81
Correlation (3Y) Calculated over the trailing 3-year period	0.87
Correlation (5Y) Calculated over the trailing 5-year period	0.87
Correlation (All Time) Calculated using the full available price history since Dec 31, 2018	0.85

The correlation between FSKY.L and LOCK.L has been stable across timeframes, ranging from 0.81 to 0.87 - a consistent structural relationship.

FSKY.L vs. LOCK.L - Sectors Allocation Comparison

Sectors	FSKY.L	LOCK.L
Technology	85.6%	82.1%
Communication Services	10.1%	-
Consumer Cyclical	3.9%	-
Healthcare	0.5%	-
Basic Materials	-	-
Consumer Defensive	-	-
Energy	-	-
Financial Services	-	-
Industrials	-	12.8%
Real Estate	-	5.2%
Utilities	-	-

Return for Risk

FSKY.L vs. LOCK.L — Risk / Return Rank

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

FSKY.L

FSKY.L Risk / Return Rank: 26
FSKY.L Sharpe Ratio Rank: 28
FSKY.L Sortino Ratio Rank: 28
FSKY.L Omega Ratio Rank: 30
FSKY.L Calmar Ratio Rank: 22
FSKY.L Martin Ratio Rank: 19

LOCK.L

LOCK.L Risk / Return Rank: 41
LOCK.L Sharpe Ratio Rank: 39
LOCK.L Sortino Ratio Rank: 39
LOCK.L Omega Ratio Rank: 38
LOCK.L Calmar Ratio Rank: 50
LOCK.L Martin Ratio Rank: 37

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.

FSKY.L vs. LOCK.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for First Trust Cloud Computing UCITS ETF Class A USD Accumulation (FSKY.L) and iShares Digital Security UCITS ETF USD Acc (LOCK.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.

	FSKY.L	LOCK.L	Difference
Sharpe ratio: Return per unit of total volatility	1.01	1.45	-0.44
Sortino ratio: Return per unit of downside risk	1.53	2.11	-0.58
Omega ratio: Gain probability vs. loss probability	1.20	1.27	-0.07
Calmar ratio: Return relative to maximum drawdown	0.99	2.35	-1.36
Martin ratio: Return relative to average drawdown	2.14	5.40	-3.25
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FSKY.L vs. LOCK.L - Sharpe Ratio Comparison

The current FSKY.L Sharpe Ratio is 1.01, which is lower than the LOCK.L Sharpe Ratio of 1.45. The chart below compares the historical Sharpe Ratios of FSKY.L and LOCK.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

	FSKY.L	LOCK.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.01	1.45	-0.44
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.34	0.58	-0.24
Sharpe Ratio (All Time) Calculated using the full available price history	0.57	0.60	-0.03

Drawdowns

FSKY.L vs. LOCK.L - Drawdown Comparison

The maximum FSKY.L drawdown since its inception was -47.61%, which is greater than LOCK.L's maximum drawdown of -27.28%. Use the drawdown chart below to compare losses from any high point for FSKY.L and LOCK.L.

Drawdown Indicators

	FSKY.L	LOCK.L	Difference
Max Drawdown Largest peak-to-trough decline	-47.61%	-27.28%	-20.33%
Max Drawdown (1Y) Largest decline over 1 year	-28.23%	-12.55%	-15.68%
Max Drawdown (3Y) Largest decline over 3 years	-34.05%	-24.36%	-9.69%
Max Drawdown (5Y) Largest decline over 5 years	-47.61%	-27.28%	-20.33%
Current Drawdown Current decline from peak	-3.47%	-0.67%	-2.80%
Average Drawdown Average peak-to-trough decline	-15.61%	-8.06%	-7.55%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.09%	5.49%	+7.60%

Volatility

FSKY.L vs. LOCK.L - Volatility Comparison

First Trust Cloud Computing UCITS ETF Class A USD Accumulation (FSKY.L) has a higher volatility of 12.34% compared to iShares Digital Security UCITS ETF USD Acc (LOCK.L) at 8.09%. This indicates that FSKY.L's price experiences larger fluctuations and is considered to be riskier than LOCK.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSKY.L	LOCK.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.34%	8.09%	+4.25%
Volatility (6M) Calculated over the trailing 6-month period	23.41%	16.38%	+7.03%
Volatility (1Y) Calculated over the trailing 1-year period	27.73%	20.36%	+7.37%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.23%	20.05%	+8.18%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.48%	20.30%	+7.18%

FSKY.L vs. LOCK.L - Expense Ratio Comparison

FSKY.L has a 0.60% expense ratio, which is higher than LOCK.L's 0.40% expense ratio.

Dividends

FSKY.L vs. LOCK.L - Dividend Comparison

Neither FSKY.L nor LOCK.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both FSKY.L and LOCK.L in my portfolio?

FSKY.L and LOCK.L have a correlation of 0.81, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, FSKY.L or LOCK.L?

On fees, LOCK.L is cheaper at 0.40% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, FSKY.L or LOCK.L?

LOCK.L is cheaper with a 0.40% expense ratio, compared with 0.60% for FSKY.L.

What is the main difference between FSKY.L and LOCK.L?

Both ETFs track MSCI World/Information Tech NR USD. They also come from different issuers: First Trust and iShares. Their fees differ too: 0.60% for FSKY.L and 0.40% for LOCK.L.