BIGT.L vs. BIOT.L

Last updated Jul 18, 2026

BIGT.L (L&G Pharma Breakthrough UCITS ETF) and BIOT.L (L&G Pharma Breakthrough UCITS ETF - USD Accumulating ETF) are both Health & Biotech Equities funds - BIGT.L tracks the NASDAQ Biotechnology TR USD while BIOT.L tracks the Solactive Pharma Breakthrough Value Index Net Total Return. Both are passively managed. Over the past 5 years, BIGT.L returned 3.38%/yr vs 3.36%/yr for BIOT.L. Their correlation of 0.92 suggests significant overlap in exposure. Both charge a 0.49% expense ratio.

Performance

BIGT.L vs. BIOT.L - Performance Comparison

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

Different Trading Currencies

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

Returns By Period

The year-to-date returns for both investments are quite close, with BIGT.L having a 8.70% return and BIOT.L slightly higher at 8.75%.

BIGT.L

• 1D: 0.31%
• 1M: 5.92%
• 6M: 9.33%
• YTD: 8.70%
• 1Y: 33.19%
• 3Y*: 9.28%
• 5Y*: 3.38%
• 10Y*: —

BIOT.L

• 1D: 0.23%
• 1M: 5.02%
• 6M: 8.84%
• YTD: 8.75%
• 1Y: 32.28%
• 3Y*: 9.12%
• 5Y*: 3.36%
• 10Y*: —

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

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

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
BIGT.L L&G Pharma Breakthrough UCITS ETF	8.70%	27.03%	-3.16%	-14.88%	2.68%	-2.30%	23.89%	9.47%	-28.12%
BIOT.L L&G Pharma Breakthrough UCITS ETF - USD Accumulating ETF	8.75%	26.75%	-3.66%	-13.81%	2.48%	-2.69%	24.52%	8.73%	0.06%

Correlation

The correlation between BIGT.L and BIOT.L is 0.95, 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	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.93
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (All Time) Calculated using the full available price history since Jan 18, 2018	0.92

The correlation between BIGT.L and BIOT.L has been stable across timeframes, ranging from 0.92 to 0.95 - a consistent structural relationship.

Return for Risk

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

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

BIGT.L

BIGT.L Risk / Return Rank: 71
BIGT.L Sharpe Ratio Rank: 70
BIGT.L Sortino Ratio Rank: 69
BIGT.L Omega Ratio Rank: 63
BIGT.L Calmar Ratio Rank: 82
BIGT.L Martin Ratio Rank: 69

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

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.

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

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

	BIGT.L	BIOT.L	Difference
Sharpe ratio: Return per unit of total volatility	1.74	1.58	+0.16
Sortino ratio: Return per unit of downside risk	2.43	2.25	+0.18
Omega ratio: Gain probability vs. loss probability	1.29	1.27	+0.03
Calmar ratio: Return relative to maximum drawdown	3.33	3.15	+0.18
Martin ratio: Return relative to average drawdown	9.36	8.98	+0.38

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

The current BIGT.L Sharpe Ratio is 1.74, which is comparable to the BIOT.L Sharpe Ratio of 1.58. The chart below compares the historical Sharpe Ratios of BIGT.L and BIOT.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

BIGT.L vs. BIOT.L - Drawdown Comparison

The maximum BIGT.L drawdown since its inception was -36.84%, which is greater than BIOT.L's maximum drawdown of -30.68%. Use the drawdown chart below to compare losses from any high point for BIGT.L and BIOT.L.

Drawdown Indicators

	BIGT.L	BIOT.L	Difference
Max Drawdown Largest peak-to-trough decline	-36.84%	-30.68%	-6.16%
Max Drawdown (1Y) Largest decline over 1 year	-9.93%	-10.21%	+0.28%
Max Drawdown (3Y) Largest decline over 3 years	-28.44%	-19.56%	-8.88%
Max Drawdown (5Y) Largest decline over 5 years	-30.23%	-30.68%	+0.45%
Current Drawdown Current decline from peak	-5.82%	-5.93%	+0.11%
Average Drawdown Average peak-to-trough decline	-17.20%	-10.48%	-6.72%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.53%	3.58%	-0.05%

Volatility

BIGT.L vs. BIOT.L - Volatility Comparison

L&G Pharma Breakthrough UCITS ETF (BIGT.L) and L&G Pharma Breakthrough UCITS ETF - USD Accumulating ETF (BIOT.L) have volatilities of 6.07% and 6.38%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BIGT.L	BIOT.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.07%	6.38%	-0.31%
Volatility (6M) Calculated over the trailing 6-month period	14.26%	15.35%	-1.09%
Volatility (1Y) Calculated over the trailing 1-year period	19.03%	20.42%	-1.39%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.45%	17.99%	+3.46%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.22%	19.14%	+4.08%

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

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

Dividends

BIGT.L vs. BIOT.L - Dividend Comparison

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

Tickers have no history of dividend payments

Frequently Asked Questions

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

With a correlation of 0.95, BIGT.L and BIOT.L move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

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

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

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

BIGT.L tracks NASDAQ Biotechnology TR USD, while BIOT.L tracks Solactive Pharma Breakthrough Value Index Net Total Return. They also come from different issuers: Legal & General and L&G.