GLUG.L vs. ISPY.L

Last updated Jul 16, 2026

GLUG.L (L&G Clean Water UCITS ETF) and ISPY.L (L&G Cyber Security UCITS ETF) are both exchange-traded funds - GLUG.L is a Global Equities fund tracking the L&G Clean Water UCITS ETF, while ISPY.L is a Cybersecurity fund tracking the ISE Cyber Security UCITS Index. Both are passively managed. Over the past 5 years, GLUG.L returned 5.92%/yr vs 12.79%/yr for ISPY.L. A 0.55 correlation means they provide meaningful diversification when combined. GLUG.L charges 0.49%/yr vs 0.69%/yr for ISPY.L.

Performance

GLUG.L vs. ISPY.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in L&G Clean Water UCITS ETF (GLUG.L) and L&G Cyber Security UCITS ETF (ISPY.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

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

Returns By Period

In the year-to-date period, GLUG.L achieves a 4.52% return, which is significantly lower than ISPY.L's 47.96% return.

GLUG.L

• 1D: 0.52%
• 1M: 1.53%
• 6M: 0.90%
• YTD: 4.52%
• 1Y: 8.35%
• 3Y*: 10.79%
• 5Y*: 5.92%
• 10Y*: —

ISPY.L

• 1D: -1.85%
• 1M: 12.14%
• 6M: 51.23%
• YTD: 47.96%
• 1Y: 46.26%
• 3Y*: 30.23%
• 5Y*: 12.79%
• 10Y*: 17.43%

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

GLUG.L vs. ISPY.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
GLUG.L L&G Clean Water UCITS ETF	4.52%	15.76%	4.02%	21.24%	-17.39%	26.15%	18.97%	13.32%
ISPY.L L&G Cyber Security UCITS ETF	47.96%	7.85%	17.69%	41.44%	-32.64%	8.19%	41.44%	7.05%

Correlation

The correlation between GLUG.L and ISPY.L is 0.25, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.25
Correlation (3Y) Calculated over the trailing 3-year period	0.46
Correlation (5Y) Calculated over the trailing 5-year period	0.56
Correlation (All Time) Calculated using the full available price history since Jun 26, 2019	0.55

Over the past year, the correlation between GLUG.L and ISPY.L has dropped to 0.25 - well below their long-term average of 0.55, suggesting their price drivers have been diverging.

Return for Risk

GLUG.L vs. ISPY.L — Risk / Return Rank

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

GLUG.L

GLUG.L Risk / Return Rank: 20
GLUG.L Sharpe Ratio Rank: 21
GLUG.L Sortino Ratio Rank: 20
GLUG.L Omega Ratio Rank: 19
GLUG.L Calmar Ratio Rank: 20
GLUG.L Martin Ratio Rank: 20

ISPY.L

ISPY.L Risk / Return Rank: 53
ISPY.L Sharpe Ratio Rank: 58
ISPY.L Sortino Ratio Rank: 55
ISPY.L Omega Ratio Rank: 60
ISPY.L Calmar Ratio Rank: 53
ISPY.L Martin Ratio Rank: 41

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.

GLUG.L vs. ISPY.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for L&G Clean Water UCITS ETF (GLUG.L) and L&G Cyber Security UCITS ETF (ISPY.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.

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.

	GLUG.L	ISPY.L	Difference
Sharpe ratio: Return per unit of total volatility	0.59	1.65	-1.06
Sortino ratio: Return per unit of downside risk	0.95	2.25	-1.30
Omega ratio: Gain probability vs. loss probability	1.11	1.30	-0.19
Calmar ratio: Return relative to maximum drawdown	0.74	2.52	-1.78
Martin ratio: Return relative to average drawdown	1.71	6.54	-4.84

GLUG.L vs. ISPY.L - Sharpe Ratio Comparison

The current GLUG.L Sharpe Ratio is 0.59, which is lower than the ISPY.L Sharpe Ratio of 1.65. The chart below compares the historical Sharpe Ratios of GLUG.L and ISPY.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.

Drawdowns

GLUG.L vs. ISPY.L - Drawdown Comparison

The maximum GLUG.L drawdown since its inception was -35.67%, smaller than the maximum ISPY.L drawdown of -52.67%. Use the drawdown chart below to compare losses from any high point for GLUG.L and ISPY.L.

Drawdown Indicators

	GLUG.L	ISPY.L	Difference
Max Drawdown Largest peak-to-trough decline	-35.67%	-52.67%	+17.00%
Max Drawdown (1Y) Largest decline over 1 year	-12.66%	-18.30%	+5.64%
Max Drawdown (3Y) Largest decline over 3 years	-16.61%	-27.67%	+11.06%
Max Drawdown (5Y) Largest decline over 5 years	-30.10%	-39.42%	+9.32%
Max Drawdown (10Y) Largest decline over 10 years	—	-39.42%	—
Current Drawdown Current decline from peak	-6.46%	-1.85%	-4.61%
Average Drawdown Average peak-to-trough decline	-7.43%	-16.00%	+8.57%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.47%	7.05%	-1.58%

Volatility

GLUG.L vs. ISPY.L - Volatility Comparison

The current volatility for L&G Clean Water UCITS ETF (GLUG.L) is 4.58%, while L&G Cyber Security UCITS ETF (ISPY.L) has a volatility of 10.74%. This indicates that GLUG.L experiences smaller price fluctuations and is considered to be less risky than ISPY.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GLUG.L	ISPY.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.58%	10.74%	-6.16%
Volatility (6M) Calculated over the trailing 6-month period	12.97%	24.89%	-11.92%
Volatility (1Y) Calculated over the trailing 1-year period	15.85%	27.98%	-12.13%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.63%	28.71%	-11.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.38%	25.05%	-5.67%

GLUG.L vs. ISPY.L - Expense Ratio Comparison

GLUG.L has a 0.49% expense ratio, which is lower than ISPY.L's 0.69% expense ratio.

Dividends

GLUG.L vs. ISPY.L - Dividend Comparison

Neither GLUG.L nor ISPY.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both GLUG.L and ISPY.L in my portfolio?

GLUG.L and ISPY.L have a correlation of 0.25, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, GLUG.L or ISPY.L?

On fees, GLUG.L is cheaper at 0.49% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, GLUG.L or ISPY.L?

GLUG.L is cheaper with a 0.49% expense ratio, compared with 0.69% for ISPY.L.

What is the main difference between GLUG.L and ISPY.L?

GLUG.L is categorized as Global Equities, while ISPY.L is Cybersecurity. GLUG.L tracks L&G Clean Water UCITS ETF, while ISPY.L tracks ISE Cyber Security UCITS Index. Their fees differ too: 0.49% for GLUG.L and 0.69% for ISPY.L.