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

MIDD.L vs. CUKX.L

Last updated Jun 5, 2026

MIDD.L (iShares FTSE 250 UCITS ETF) and CUKX.L (iShares FTSE 100 UCITS ETF) are both exchange-traded funds - MIDD.L is a Europe Equities fund tracking the FTSE 250 Ex Investment Trust TR GBP, while CUKX.L is a fund fund tracking the FTSE 100 Index. Both are passively managed. Over the past 10 years, MIDD.L returned 5.54%/yr vs 9.06%/yr for CUKX.L. A 0.67 correlation means they provide meaningful diversification when combined. MIDD.L charges 0.40%/yr vs 0.07%/yr for CUKX.L.

Performance

MIDD.L vs. CUKX.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares FTSE 250 UCITS ETF (MIDD.L) and iShares FTSE 100 UCITS ETF (CUKX.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, MIDD.L achieves a 5.26% return, which is significantly lower than CUKX.L's 5.86% return. Over the past 10 years, MIDD.L has underperformed CUKX.L with an annualized return of 5.54%, while CUKX.L has yielded a comparatively higher 9.06% annualized return.

MIDD.L

1D
0.56%
1M
4.32%
YTD
5.26%
6M
7.17%
1Y
13.79%
3Y*
9.96%
5Y*
3.14%
10Y*
5.54%

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

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

2026 (YTD)202520242023202220212020201920182017
MIDD.L
iShares FTSE 250 UCITS ETF		5.26%12.44%7.33%7.76%-17.86%16.27%-5.34%28.46%-13.44%17.34%
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%

Correlation

The correlation between MIDD.L and CUKX.L is 0.70, 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

0.70

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

0.70

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

0.72

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

0.72

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

0.67

The correlation between MIDD.L and CUKX.L has been stable across timeframes, ranging from 0.67 to 0.72 - a consistent structural relationship.

MIDD.L vs. CUKX.L - Sectors Allocation Comparison

Sectors
MIDD.L
CUKX.L

Industrials

19.9%
13.7%

Financial Services

19.5%
25.0%

Consumer Cyclical

13.3%
5.0%

Real Estate

9.4%
0.9%

Technology

9.2%
0.8%

Basic Materials

6.6%
8.9%

Consumer Defensive

6.1%
13.2%

Communication Services

5.9%
2.6%

Healthcare

4.4%
13.6%

Utilities

3.0%
5.1%

Energy

2.5%
11.3%

Industrials

MIDD.L
19.9%
CUKX.L
13.7%

Financial Services

MIDD.L
19.5%
CUKX.L
25.0%

Consumer Cyclical

MIDD.L
13.3%
CUKX.L
5.0%

Real Estate

MIDD.L
9.4%
CUKX.L
0.9%

Technology

MIDD.L
9.2%
CUKX.L
0.8%

Basic Materials

MIDD.L
6.6%
CUKX.L
8.9%

Consumer Defensive

MIDD.L
6.1%
CUKX.L
13.2%

Communication Services

MIDD.L
5.9%
CUKX.L
2.6%

Healthcare

MIDD.L
4.4%
CUKX.L
13.6%

Utilities

MIDD.L
3.0%
CUKX.L
5.1%

Energy

MIDD.L
2.5%
CUKX.L
11.3%

Compare stocks, funds, or ETFs

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iShares FTSE 250 UCITS ETF

iShares FTSE 100 UCITS ETF

Often compared with MIDD.L:
MIDD.L vs. VMID.LMIDD.L vs. CSUK.LMIDD.L vs. CUKS.LMIDD.L vs. ISF.LMIDD.L vs. HMWO.LMIDD.L vs. SWDA.LMIDD.L vs. FTAL.L
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

Return for Risk

MIDD.L vs. CUKX.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
MIDD.L
MIDD.L Risk / Return Rank: 3030
Overall Rank
MIDD.L Sharpe Ratio Rank: 3131
Sharpe Ratio Rank
MIDD.L Sortino Ratio Rank: 3232
Sortino Ratio Rank
MIDD.L Omega Ratio Rank: 3131
Omega Ratio Rank
MIDD.L Calmar Ratio Rank: 2525
Calmar Ratio Rank
MIDD.L Martin Ratio Rank: 2929
Martin Ratio Rank
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
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.

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

This table presents a comparison of risk-adjusted performance metrics for iShares FTSE 250 UCITS ETF (MIDD.L) and iShares FTSE 100 UCITS ETF (CUKX.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.

MIDD.LCUKX.LDifference
Sharpe ratioReturn per unit of total volatility
1.10
1.97

-0.87

Sortino ratioReturn per unit of downside risk
1.67
2.76

-1.08

Omega ratioGain probability vs. loss probability

1.21

1.37

-0.17

Calmar ratioReturn relative to maximum drawdown

1.19

2.41

-1.22

Martin ratioReturn relative to average drawdown

4.19

8.21

-4.02

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

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

The current MIDD.L Sharpe Ratio is 1.10, which is lower than the CUKX.L Sharpe Ratio of 1.97. The chart below compares the historical Sharpe Ratios of MIDD.L and CUKX.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

MIDD.LCUKX.LDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.10

1.97

-0.87

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.21

0.92

-0.72

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.33

0.60

-0.27

Sharpe Ratio (All Time)

Calculated using the full available price history

0.48

0.53

-0.06

Drawdowns

MIDD.L vs. CUKX.L - Drawdown Comparison

The maximum MIDD.L drawdown since its inception was -51.66%, which is greater than CUKX.L's maximum drawdown of -34.50%. Use the drawdown chart below to compare losses from any high point for MIDD.L and CUKX.L.

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Drawdown Indicators

MIDD.LCUKX.LDifference

Max Drawdown

Largest peak-to-trough decline

-51.66%

-34.50%

-17.16%

Max Drawdown (1Y)

Largest decline over 1 year

-11.54%

-8.89%

-2.65%

Max Drawdown (3Y)

Largest decline over 3 years

-16.92%

-12.88%

-4.04%

Max Drawdown (5Y)

Largest decline over 5 years

-29.93%

-12.88%

-17.05%

Max Drawdown (10Y)

Largest decline over 10 years

-41.60%

-34.50%

-7.10%

Current Drawdown

Current decline from peak

-0.77%

-4.15%

+3.38%

Average Drawdown

Average peak-to-trough decline

-8.76%

-4.40%

-4.36%

Ulcer Index

Depth and duration of drawdowns from previous peaks

3.28%

2.62%

+0.66%

Volatility

MIDD.L vs. CUKX.L - Volatility Comparison

iShares FTSE 250 UCITS ETF (MIDD.L) and iShares FTSE 100 UCITS ETF (CUKX.L) have volatilities of 3.92% and 4.08%, 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.

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Volatility by Period

MIDD.LCUKX.LDifference

Volatility (1M)

Calculated over the trailing 1-month period

3.92%

4.08%

-0.16%

Volatility (6M)

Calculated over the trailing 6-month period

10.27%

9.48%

+0.79%

Volatility (1Y)

Calculated over the trailing 1-year period

12.49%

10.87%

+1.62%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

15.27%

12.71%

+2.56%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

16.54%

15.08%

+1.46%

MIDD.L vs. CUKX.L - Expense Ratio Comparison

MIDD.L has a 0.40% expense ratio, which is higher than CUKX.L's 0.07% expense ratio.

Dividends

MIDD.L vs. CUKX.L - Dividend Comparison

MIDD.L's dividend yield for the trailing twelve months is around 3.43%, while CUKX.L has not paid dividends to shareholders.

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%
MIDD.L
iShares FTSE 250 UCITS ETF		3.43%3.56%3.05%3.17%2.76%2.01%1.51%2.72%3.07%2.80%2.67%2.80%

Frequently Asked Questions

MIDD.L and CUKX.L have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

On fees, CUKX.L is cheaper at 0.07% per year. The better choice depends on whether you care most about return, fees, risk, or income.

CUKX.L is cheaper with a 0.07% expense ratio, compared with 0.40% for MIDD.L.

MIDD.L tracks FTSE 250 Ex Investment Trust TR GBP, while CUKX.L tracks FTSE 100 Index. Their fees differ too: 0.40% for MIDD.L and 0.07% for CUKX.L.

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