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CUKX.L vs. RKT.L
Performance
Return for Risk
Drawdowns
Volatility
Dividends

CUKX.L vs. RKT.L

Last updated Jun 5, 2026

CUKX.L (iShares FTSE 100 UCITS ETF) is fund fund tracking the FTSE 100 Index, while RKT.L (Reckitt Benckiser Group plc) is a stock. Over the past 10 years, CUKX.L returned 9.06%/yr vs -1.34%/yr for RKT.L. At a 0.37 correlation, their price movements are largely independent.

Performance

CUKX.L vs. RKT.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares FTSE 100 UCITS ETF (CUKX.L) and Reckitt Benckiser Group plc (RKT.L). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, CUKX.L achieves a 5.86% return, which is significantly higher than RKT.L's -23.90% return. Over the past 10 years, CUKX.L has outperformed RKT.L with an annualized return of 9.06%, while RKT.L has yielded a comparatively lower -1.34% annualized return.

CUKX.L

1D
0.28%
1M
1.51%
YTD
5.86%
6M
8.05%
1Y
21.53%
3Y*
14.63%
5Y*
11.72%
10Y*
9.06%

RKT.L

1D
-0.25%
1M
-3.21%
YTD
-23.90%
6M
-22.66%
1Y
-7.86%
3Y*
-7.07%
5Y*
-3.76%
10Y*
-1.34%
*Multi-year figures are annualized to reflect compound growth (CAGR)

CUKX.L vs. RKT.L - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
CUKX.L
iShares FTSE 100 UCITS ETF		5.86%25.78%9.30%7.72%4.97%17.48%-11.28%17.23%-9.05%12.45%
RKT.L
Reckitt Benckiser Group plc		-23.90%29.40%-6.57%-2.84%-6.76%-0.22%9.53%4.93%-10.76%2.69%

Correlation

The correlation between CUKX.L and RKT.L is 0.37, which is low. Their price movements are largely independent, making them effective diversification partners.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.37

Correlation (3Y)
Calculated over the trailing 3-year period

0.33

Correlation (5Y)
Calculated over the trailing 5-year period

0.30

Correlation (10Y)
Calculated over the trailing 10-year period

0.35

Correlation (All Time)
Calculated using the full available price history since Sep 17, 2010

0.37

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

iShares FTSE 100 UCITS ETF

Reckitt Benckiser Group plc

Often compared with CUKX.L:
CUKX.L vs. VUKG.LCUKX.L vs. IUKD.LCUKX.L vs. FTAL.LCUKX.L vs. CSUK.LCUKX.L vs. VUKE.DECUKX.L vs. CPJ1.LCUKX.L vs. S100.L
Often compared with RKT.L:
RKT.L vs. VOORKT.L vs. LWDB.LRKT.L vs. PGRKT.L vs. HMWO.LRKT.L vs. CHDRKT.L vs. SWDA.LRKT.L vs. EOAN.DE

Return for Risk

CUKX.L vs. RKT.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
CUKX.L
CUKX.L Risk / Return Rank: 5656
Overall Rank
CUKX.L Sharpe Ratio Rank: 6060
Sharpe Ratio Rank
CUKX.L Sortino Ratio Rank: 5959
Sortino Ratio Rank
CUKX.L Omega Ratio Rank: 6262
Omega Ratio Rank
CUKX.L Calmar Ratio Rank: 5050
Calmar Ratio Rank
CUKX.L Martin Ratio Rank: 5050
Martin Ratio Rank
RKT.L
RKT.L Risk / Return Rank: 2626
Overall Rank
RKT.L Sharpe Ratio Rank: 2626
Sharpe Ratio Rank
RKT.L Sortino Ratio Rank: 2222
Sortino Ratio Rank
RKT.L Omega Ratio Rank: 2222
Omega Ratio Rank
RKT.L Calmar Ratio Rank: 3333
Calmar Ratio Rank
RKT.L Martin Ratio Rank: 2929
Martin Ratio Rank
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.

CUKX.L vs. RKT.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares FTSE 100 UCITS ETF (CUKX.L) and Reckitt Benckiser Group plc (RKT.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.

CUKX.LRKT.LDifference
Sharpe ratioReturn per unit of total volatility
1.97
-0.36

+2.33

Sortino ratioReturn per unit of downside risk
2.76
-0.40

+3.16

Omega ratioGain probability vs. loss probability

1.37

0.95

+0.42

Calmar ratioReturn relative to maximum drawdown

2.41

-0.26

+2.67

Martin ratioReturn relative to average drawdown

8.21

-0.67

+8.88

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CUKX.L vs. RKT.L - Sharpe Ratio Comparison

The current CUKX.L Sharpe Ratio is 1.97, which is higher than the RKT.L Sharpe Ratio of -0.36. The chart below compares the historical Sharpe Ratios of CUKX.L and RKT.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.

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Sharpe Ratios by Period

CUKX.LRKT.LDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.97

-0.36

+2.33

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.92

-0.17

+1.09

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.60

-0.06

+0.66

Sharpe Ratio (All Time)

Calculated using the full available price history

0.53

0.36

+0.18

Drawdowns

CUKX.L vs. RKT.L - Drawdown Comparison

The maximum CUKX.L drawdown since its inception was -34.50%, smaller than the maximum RKT.L drawdown of -66.15%. Use the drawdown chart below to compare losses from any high point for CUKX.L and RKT.L.

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Drawdown Indicators

CUKX.LRKT.LDifference

Max Drawdown

Largest peak-to-trough decline

-34.50%

-66.15%

+31.65%

Max Drawdown (1Y)

Largest decline over 1 year

-8.89%

-30.10%

+21.21%

Max Drawdown (3Y)

Largest decline over 3 years

-12.88%

-32.31%

+19.43%

Max Drawdown (5Y)

Largest decline over 5 years

-12.88%

-35.69%

+22.81%

Max Drawdown (10Y)

Largest decline over 10 years

-34.50%

-41.79%

+7.29%

Current Drawdown

Current decline from peak

-4.15%

-30.99%

+26.84%

Average Drawdown

Average peak-to-trough decline

-4.40%

-12.54%

+8.14%

Ulcer Index

Depth and duration of drawdowns from previous peaks

2.62%

11.73%

-9.11%

Volatility

CUKX.L vs. RKT.L - Volatility Comparison

The current volatility for iShares FTSE 100 UCITS ETF (CUKX.L) is 4.08%, while Reckitt Benckiser Group plc (RKT.L) has a volatility of 7.13%. This indicates that CUKX.L experiences smaller price fluctuations and is considered to be less risky than RKT.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

CUKX.LRKT.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

4.08%

7.13%

-3.05%

Volatility (6M)

Calculated over the trailing 6-month period

9.48%

16.75%

-7.27%

Volatility (1Y)

Calculated over the trailing 1-year period

10.87%

21.65%

-10.78%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

12.71%

22.50%

-9.79%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

15.08%

22.36%

-7.28%

Dividends

CUKX.L vs. RKT.L - Dividend Comparison

CUKX.L has not paid dividends to shareholders, while RKT.L's dividend yield for the trailing twelve months is around 10.09%.

PositionTTM20252024202320222021202020192018201720162015
CUKX.L
iShares FTSE 100 UCITS ETF		0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
RKT.L
Reckitt Benckiser Group plc		10.09%3.43%4.06%3.45%3.03%2.75%2.67%2.83%2.80%2.34%2.13%2.06%

Frequently Asked Questions

CUKX.L and RKT.L have a correlation of 0.37, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

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