BIOT.L vs. GLUG.L

Last updated Jul 18, 2026

BIOT.L (L&G Pharma Breakthrough UCITS ETF - USD Accumulating ETF) and GLUG.L (L&G Clean Water UCITS ETF USD (Acc)) are both exchange-traded funds - BIOT.L is a Health & Biotech Equities fund tracking the Solactive Pharma Breakthrough Value Index Net Total Return, while GLUG.L is a Water Equities fund tracking the Solactive Clean Water Index NTR. Both are passively managed. Over the past 5 years, BIOT.L returned 2.89%/yr vs 6.20%/yr for GLUG.L. A 0.57 correlation means they provide meaningful diversification when combined. Both charge a 0.49% expense ratio.

Performance

BIOT.L vs. GLUG.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in L&G Pharma Breakthrough UCITS ETF - USD Accumulating ETF (BIOT.L) and L&G Clean Water UCITS ETF USD (Acc) (GLUG.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BIOT.L achieves a 8.59% return, which is significantly higher than GLUG.L's 5.95% return.

BIOT.L

• 1D: 0.07%
• 1M: 6.33%
• 6M: 9.47%
• YTD: 8.59%
• 1Y: 32.65%
• 3Y*: 10.27%
• 5Y*: 2.89%
• 10Y*: —

GLUG.L

• 1D: -0.09%
• 1M: 1.36%
• 6M: 0.23%
• YTD: 5.95%
• 1Y: 9.33%
• 3Y*: 11.06%
• 5Y*: 6.20%
• 10Y*: —

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

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

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
BIOT.L L&G Pharma Breakthrough UCITS ETF - USD Accumulating ETF	8.59%	36.47%	-5.31%	-9.28%	-8.41%	-3.60%	28.29%	4.86%
GLUG.L L&G Clean Water UCITS ETF USD (Acc)	5.95%	15.76%	4.02%	21.24%	-17.39%	26.15%	18.97%	13.32%

Correlation

The correlation between BIOT.L and GLUG.L is 0.43, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.43
Correlation (3Y) Calculated over the trailing 3-year period	0.51
Correlation (5Y) Calculated over the trailing 5-year period	0.58
Correlation (All Time) Calculated using the full available price history since Jun 26, 2019	0.57

The correlation between BIOT.L and GLUG.L shifts across timeframes, from 0.43 (1 year) to 0.58 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

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

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

BIOT.L

BIOT.L Risk / Return Rank: 69
BIOT.L Sharpe Ratio Rank: 66
BIOT.L Sortino Ratio Rank: 67
BIOT.L Omega Ratio Rank: 58
BIOT.L Calmar Ratio Rank: 84
BIOT.L Martin Ratio Rank: 72

GLUG.L

GLUG.L Risk / Return Rank: 22
GLUG.L Sharpe Ratio Rank: 22
GLUG.L Sortino Ratio Rank: 22
GLUG.L Omega Ratio Rank: 21
GLUG.L Calmar Ratio Rank: 22
GLUG.L Martin Ratio Rank: 21

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.

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

This table presents a comparison of risk-adjusted performance metrics for L&G Pharma Breakthrough UCITS ETF - USD Accumulating ETF (BIOT.L) and L&G Clean Water UCITS ETF USD (Acc) (GLUG.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.

	BIOT.L	GLUG.L	Difference
Sharpe ratio: Return per unit of total volatility	1.61	0.59	+1.03
Sortino ratio: Return per unit of downside risk	2.32	0.95	+1.37
Omega ratio: Gain probability vs. loss probability	1.27	1.11	+0.16
Calmar ratio: Return relative to maximum drawdown	3.40	0.73	+2.67
Martin ratio: Return relative to average drawdown	9.73	1.70	+8.03

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

The current BIOT.L Sharpe Ratio is 1.61, which is higher than the GLUG.L Sharpe Ratio of 0.59. The chart below compares the historical Sharpe Ratios of BIOT.L and GLUG.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

BIOT.L vs. GLUG.L - Drawdown Comparison

The maximum BIOT.L drawdown since its inception was -34.44%, roughly equal to the maximum GLUG.L drawdown of -35.67%. Use the drawdown chart below to compare losses from any high point for BIOT.L and GLUG.L.

Drawdown Indicators

	BIOT.L	GLUG.L	Difference
Max Drawdown Largest peak-to-trough decline	-34.44%	-35.67%	+1.23%
Max Drawdown (1Y) Largest decline over 1 year	-9.55%	-12.66%	+3.11%
Max Drawdown (3Y) Largest decline over 3 years	-19.91%	-16.61%	-3.30%
Max Drawdown (5Y) Largest decline over 5 years	-33.80%	-30.10%	-3.70%
Current Drawdown Current decline from peak	-5.43%	-5.19%	-0.24%
Average Drawdown Average peak-to-trough decline	-13.31%	-7.43%	-5.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.35%	5.47%	-2.12%

Volatility

BIOT.L vs. GLUG.L - Volatility Comparison

L&G Pharma Breakthrough UCITS ETF - USD Accumulating ETF (BIOT.L) has a higher volatility of 5.96% compared to L&G Clean Water UCITS ETF USD (Acc) (GLUG.L) at 4.96%. This indicates that BIOT.L's price experiences larger fluctuations and is considered to be riskier than GLUG.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BIOT.L	GLUG.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.96%	4.96%	+1.00%
Volatility (6M) Calculated over the trailing 6-month period	15.54%	13.11%	+2.43%
Volatility (1Y) Calculated over the trailing 1-year period	20.19%	15.94%	+4.25%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.62%	17.65%	+0.97%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.50%	19.39%	+0.11%

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

Both BIOT.L and GLUG.L have an expense ratio of 0.49%.

Dividends

BIOT.L vs. GLUG.L - Dividend Comparison

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

Tickers have no history of dividend payments

Frequently Asked Questions

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

BIOT.L and GLUG.L have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

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

Both ETFs have the same 0.49% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

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

BIOT.L and GLUG.L have the same expense ratio: 0.49% per year.

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

BIOT.L is categorized as Health & Biotech Equities, while GLUG.L is Water Equities. BIOT.L tracks Solactive Pharma Breakthrough Value Index Net Total Return, while GLUG.L tracks Solactive Clean Water Index NTR.