ROBG.L vs. BIGT.L

Last updated Jun 5, 2026

ROBG.L (L&G ROBO Global Robotics and Automation UCITS ETF) and BIGT.L (L&G Pharma Breakthrough UCITS ETF) are both exchange-traded funds - ROBG.L is a Robotics fund tracking the ROBO Global Robotics and Automation Index, while BIGT.L is a Health & Biotech Equities fund tracking the NASDAQ Biotechnology TR USD. Both are passively managed. Over the past 5 years, ROBG.L returned 8.16%/yr vs 2.49%/yr for BIGT.L. A 0.57 correlation means they provide meaningful diversification when combined. ROBG.L charges 0.80%/yr vs 0.49%/yr for BIGT.L.

Performance

ROBG.L vs. BIGT.L - Performance Comparison

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

Returns By Period

In the year-to-date period, ROBG.L achieves a 28.02% return, which is significantly higher than BIGT.L's -0.70% return.

ROBG.L

• 1D: -1.53%
• 1M: 9.31%
• YTD: 28.02%
• 6M: 25.47%
• 1Y: 57.61%
• 3Y*: 13.63%
• 5Y*: 8.16%
• 10Y*: 14.60%

BIGT.L

• 1D: 2.65%
• 1M: -3.25%
• YTD: -0.70%
• 6M: -3.88%
• 1Y: 25.65%
• 3Y*: 2.96%
• 5Y*: 2.49%
• 10Y*: —

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

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

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
ROBG.L L&G ROBO Global Robotics and Automation UCITS ETF	28.02%	14.68%	-0.04%	18.36%	-25.90%	17.05%	40.88%	25.34%	-20.11%
BIGT.L L&G Pharma Breakthrough UCITS ETF	-0.70%	27.03%	-3.16%	-14.88%	2.68%	-2.30%	23.89%	9.47%	-1.85%

Correlation

The correlation between ROBG.L and BIGT.L is 0.39, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.39
Correlation (3Y) Calculated over the trailing 3-year period	0.44
Correlation (5Y) Calculated over the trailing 5-year period	0.49
Correlation (All Time) Calculated using the full available price history since Jan 26, 2018	0.57

The correlation between ROBG.L and BIGT.L shifts across timeframes, from 0.39 (1 year) to 0.57 (all time), reflecting how their relationship changes across market environments.

ROBG.L vs. BIGT.L - Sectors Allocation Comparison

Sectors	ROBG.L	BIGT.L
Industrials	45.6%	-
Technology	45.5%	-
Healthcare	4.6%	97.3%
Consumer Cyclical	2.9%	-
Communication Services	1.4%	-
Basic Materials	-	2.7%
Consumer Defensive	-	-
Energy	-	-
Financial Services	-	-
Real Estate	-	-
Utilities	-	-

Return for Risk

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

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

ROBG.L

ROBG.L Risk / Return Rank: 82
ROBG.L Sharpe Ratio Rank: 85
ROBG.L Sortino Ratio Rank: 83
ROBG.L Omega Ratio Rank: 80
ROBG.L Calmar Ratio Rank: 81
ROBG.L Martin Ratio Rank: 80

BIGT.L

BIGT.L Risk / Return Rank: 43
BIGT.L Sharpe Ratio Rank: 40
BIGT.L Sortino Ratio Rank: 41
BIGT.L Omega Ratio Rank: 37
BIGT.L Calmar Ratio Rank: 53
BIGT.L Martin Ratio Rank: 45

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.

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

This table presents a comparison of risk-adjusted performance metrics for L&G ROBO Global Robotics and Automation UCITS ETF (ROBG.L) and L&G Pharma Breakthrough UCITS ETF (BIGT.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.

	ROBG.L	BIGT.L	Difference
Sharpe ratio: Return per unit of total volatility	2.73	1.39	+1.34
Sortino ratio: Return per unit of downside risk	3.70	2.04	+1.66
Omega ratio: Gain probability vs. loss probability	1.47	1.24	+0.23
Calmar ratio: Return relative to maximum drawdown	4.18	2.57	+1.61
Martin ratio: Return relative to average drawdown	15.58	7.42	+8.16
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

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

The current ROBG.L Sharpe Ratio is 2.73, which is higher than the BIGT.L Sharpe Ratio of 1.39. The chart below compares the historical Sharpe Ratios of ROBG.L and BIGT.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

	ROBG.L	BIGT.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.73	1.39	+1.34
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.40	0.15	+0.25
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.72	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.66	0.22	+0.44

Drawdowns

ROBG.L vs. BIGT.L - Drawdown Comparison

The maximum ROBG.L drawdown since its inception was -34.50%, which is greater than BIGT.L's maximum drawdown of -30.23%. Use the drawdown chart below to compare losses from any high point for ROBG.L and BIGT.L.

Drawdown Indicators

	ROBG.L	BIGT.L	Difference
Max Drawdown Largest peak-to-trough decline	-34.50%	-30.23%	-4.27%
Max Drawdown (1Y) Largest decline over 1 year	-13.72%	-9.93%	-3.79%
Max Drawdown (3Y) Largest decline over 3 years	-29.66%	-23.74%	-5.92%
Max Drawdown (5Y) Largest decline over 5 years	-34.50%	-30.23%	-4.27%
Max Drawdown (10Y) Largest decline over 10 years	-34.50%	—	—
Current Drawdown Current decline from peak	-1.55%	-5.41%	+3.86%
Average Drawdown Average peak-to-trough decline	-10.33%	-10.57%	+0.24%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.69%	3.45%	+0.24%

Volatility

ROBG.L vs. BIGT.L - Volatility Comparison

L&G ROBO Global Robotics and Automation UCITS ETF (ROBG.L) has a higher volatility of 7.77% compared to L&G Pharma Breakthrough UCITS ETF (BIGT.L) at 6.35%. This indicates that ROBG.L's price experiences larger fluctuations and is considered to be riskier than BIGT.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ROBG.L	BIGT.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.77%	6.35%	+1.42%
Volatility (6M) Calculated over the trailing 6-month period	16.14%	14.10%	+2.04%
Volatility (1Y) Calculated over the trailing 1-year period	20.97%	18.38%	+2.59%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.44%	16.86%	+3.58%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.18%	18.38%	+1.80%

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

ROBG.L has a 0.80% expense ratio, which is higher than BIGT.L's 0.49% expense ratio.

Dividends

ROBG.L vs. BIGT.L - Dividend Comparison

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

Tickers have no history of dividend payments

Frequently Asked Questions

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

ROBG.L and BIGT.L have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

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

On fees, BIGT.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, ROBG.L or BIGT.L?

BIGT.L is cheaper with a 0.49% expense ratio, compared with 0.80% for ROBG.L.

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

ROBG.L is categorized as Robotics, while BIGT.L is Health & Biotech Equities. ROBG.L tracks ROBO Global Robotics and Automation Index, while BIGT.L tracks NASDAQ Biotechnology TR USD. Their fees differ too: 0.80% for ROBG.L and 0.49% for BIGT.L.