RBTX.L vs. IISU.L

Last updated Jul 18, 2026

RBTX.L (iShares Automation & Robotics UCITS ETF) and IISU.L (iShares S&P 500 Industrials Sector UCITS ETF USD (Acc)) are both exchange-traded funds - RBTX.L is a Robotics fund tracking the iSTOXX® FactSet Automation & Robotics, while IISU.L is a Industrials Equities fund tracking the S&P 500 Capped 35/20 Industrials Index. Both are passively managed. Over the past 5 years, RBTX.L returned 9.17%/yr vs 13.86%/yr for IISU.L. A 0.62 correlation means they provide meaningful diversification when combined. RBTX.L charges 0.40%/yr vs 0.15%/yr for IISU.L.

Performance

RBTX.L vs. IISU.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares Automation & Robotics UCITS ETF (RBTX.L) and iShares S&P 500 Industrials Sector UCITS ETF USD (Acc) (IISU.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RBTX.L achieves a 19.22% return, which is significantly higher than IISU.L's 15.70% return.

RBTX.L

• 1D: -2.83%
• 1M: -9.44%
• 6M: 12.86%
• YTD: 19.22%
• 1Y: 25.57%
• 3Y*: 15.21%
• 5Y*: 9.17%
• 10Y*: —

IISU.L

• 1D: 0.09%
• 1M: -1.13%
• 6M: 7.72%
• YTD: 15.70%
• 1Y: 19.83%
• 3Y*: 18.17%
• 5Y*: 13.86%
• 10Y*: —

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

RBTX.L vs. IISU.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RBTX.L iShares Automation & Robotics UCITS ETF	19.22%	9.17%	7.51%	32.05%	-26.55%	22.26%	35.08%	32.52%	-13.97%	22.47%
IISU.L iShares S&P 500 Industrials Sector UCITS ETF USD (Acc)	15.70%	11.24%	19.29%	11.45%	6.06%	22.20%	6.25%	24.46%	-8.76%	-14.06%

Correlation

The correlation between RBTX.L and IISU.L is 0.58, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.58
Correlation (3Y) Calculated over the trailing 3-year period	0.63
Correlation (5Y) Calculated over the trailing 5-year period	0.63
Correlation (All Time) Calculated using the full available price history since Mar 22, 2017	0.62

The correlation between RBTX.L and IISU.L has been stable across timeframes, ranging from 0.58 to 0.63 - a consistent structural relationship.

RBTX.L vs. IISU.L - Sectors Allocation Comparison

Sectors	RBTX.L	IISU.L
Technology	73.6%	3.5%
Industrials	23.3%	90.3%
Healthcare	2.5%	-
Consumer Cyclical	0.5%	0.5%
Communication Services	0.1%	-
Basic Materials	0.0%	0.2%
Consumer Defensive	-	-
Energy	-	-
Financial Services	-	-
Real Estate	-	-
Utilities	-	5.3%

Return for Risk

RBTX.L vs. IISU.L — Risk / Return Rank

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

RBTX.L

RBTX.L Risk / Return Rank: 39
RBTX.L Sharpe Ratio Rank: 36
RBTX.L Sortino Ratio Rank: 37
RBTX.L Omega Ratio Rank: 36
RBTX.L Calmar Ratio Rank: 47
RBTX.L Martin Ratio Rank: 42

IISU.L

IISU.L Risk / Return Rank: 51
IISU.L Sharpe Ratio Rank: 52
IISU.L Sortino Ratio Rank: 52
IISU.L Omega Ratio Rank: 48
IISU.L Calmar Ratio Rank: 53
IISU.L Martin Ratio Rank: 50

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.

RBTX.L vs. IISU.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Automation & Robotics UCITS ETF (RBTX.L) and iShares S&P 500 Industrials Sector UCITS ETF USD (Acc) (IISU.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.

	RBTX.L	IISU.L	Difference
Sharpe ratio: Return per unit of total volatility	1.06	1.41	-0.35
Sortino ratio: Return per unit of downside risk	1.60	2.02	-0.41
Omega ratio: Gain probability vs. loss probability	1.20	1.24	-0.05
Calmar ratio: Return relative to maximum drawdown	1.94	2.11	-0.17
Martin ratio: Return relative to average drawdown	5.32	6.52	-1.19

RBTX.L vs. IISU.L - Sharpe Ratio Comparison

The current RBTX.L Sharpe Ratio is 1.06, which is comparable to the IISU.L Sharpe Ratio of 1.41. The chart below compares the historical Sharpe Ratios of RBTX.L and IISU.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

RBTX.L vs. IISU.L - Drawdown Comparison

The maximum RBTX.L drawdown since its inception was -33.46%, smaller than the maximum IISU.L drawdown of -35.68%. Use the drawdown chart below to compare losses from any high point for RBTX.L and IISU.L.

Drawdown Indicators

	RBTX.L	IISU.L	Difference
Max Drawdown Largest peak-to-trough decline	-33.46%	-35.68%	+2.22%
Max Drawdown (1Y) Largest decline over 1 year	-13.10%	-9.36%	-3.74%
Max Drawdown (3Y) Largest decline over 3 years	-27.28%	-21.12%	-6.16%
Max Drawdown (5Y) Largest decline over 5 years	-33.46%	-21.12%	-12.34%
Current Drawdown Current decline from peak	-12.56%	-4.02%	-8.54%
Average Drawdown Average peak-to-trough decline	-9.54%	-8.86%	-0.68%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.79%	3.04%	+1.75%

Volatility

RBTX.L vs. IISU.L - Volatility Comparison

iShares Automation & Robotics UCITS ETF (RBTX.L) has a higher volatility of 10.33% compared to iShares S&P 500 Industrials Sector UCITS ETF USD (Acc) (IISU.L) at 5.08%. This indicates that RBTX.L's price experiences larger fluctuations and is considered to be riskier than IISU.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RBTX.L	IISU.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.33%	5.08%	+5.25%
Volatility (6M) Calculated over the trailing 6-month period	20.27%	11.50%	+8.77%
Volatility (1Y) Calculated over the trailing 1-year period	24.11%	14.14%	+9.97%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.73%	21.15%	+4.58%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.63%	24.80%	-0.17%

RBTX.L vs. IISU.L - Expense Ratio Comparison

RBTX.L has a 0.40% expense ratio, which is higher than IISU.L's 0.15% expense ratio.

Dividends

RBTX.L vs. IISU.L - Dividend Comparison

Neither RBTX.L nor IISU.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both RBTX.L and IISU.L in my portfolio?

RBTX.L and IISU.L have a correlation of 0.58, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, RBTX.L or IISU.L?

On fees, IISU.L is cheaper at 0.15% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, RBTX.L or IISU.L?

IISU.L is cheaper with a 0.15% expense ratio, compared with 0.40% for RBTX.L.

What is the main difference between RBTX.L and IISU.L?

RBTX.L is categorized as Robotics, while IISU.L is Industrials Equities. RBTX.L tracks iSTOXX® FactSet Automation & Robotics, while IISU.L tracks S&P 500 Capped 35/20 Industrials Index. Their fees differ too: 0.40% for RBTX.L and 0.15% for IISU.L.