VUKG.L vs. CUKS.L

Last updated Jun 5, 2026

VUKG.L (Vanguard FTSE 100 UCITS ETF (GBP) Accumulating) and CUKS.L (iShares MSCI UK Small Cap UCITS ETF (Acc)) are both Europe Equities funds - VUKG.L tracks the FTSE AllSh TR GBP while CUKS.L tracks the FTSE Small Cap Ex Invest Trust TR GBP. Both are passively managed. Over the past 5 years, VUKG.L returned 11.75%/yr vs 1.23%/yr for CUKS.L. A 0.71 correlation means they provide meaningful diversification when combined. VUKG.L charges 0.09%/yr vs 0.58%/yr for CUKS.L.

Performance

VUKG.L vs. CUKS.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in Vanguard FTSE 100 UCITS ETF (GBP) Accumulating (VUKG.L) and iShares MSCI UK Small Cap UCITS ETF (Acc) (CUKS.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

VUKG.L is traded in GBP, while CUKS.L is traded in GBp. To make them comparable, the CUKS.L values have been converted to GBP using the latest available exchange rates.

Returns By Period

In the year-to-date period, VUKG.L achieves a 5.56% return, which is significantly higher than CUKS.L's 3.10% return.

VUKG.L

• 1D: 0.38%
• 1M: 1.75%
• YTD: 5.56%
• 6M: 8.02%
• 1Y: 21.09%
• 3Y*: 14.77%
• 5Y*: 11.75%
• 10Y*: —

CUKS.L

• 1D: 0.83%
• 1M: 1.29%
• YTD: 3.10%
• 6M: 5.42%
• 1Y: 10.87%
• 3Y*: 9.93%
• 5Y*: 1.23%
• 10Y*: 4.74%

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

VUKG.L vs. CUKS.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
VUKG.L Vanguard FTSE 100 UCITS ETF (GBP) Accumulating	5.56%	26.12%	9.40%	7.20%	5.51%	17.39%	-11.57%	7.70%
CUKS.L iShares MSCI UK Small Cap UCITS ETF (Acc)	3.10%	14.90%	5.74%	9.76%	-22.81%	14.33%	-6.24%	12.59%

Correlation

The correlation between VUKG.L and CUKS.L is 0.68, 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	0.68
Correlation (3Y) Calculated over the trailing 3-year period	0.70
Correlation (5Y) Calculated over the trailing 5-year period	0.71
Correlation (All Time) Calculated using the full available price history since May 15, 2019	0.71

The correlation between VUKG.L and CUKS.L has been stable across timeframes, ranging from 0.68 to 0.71 - a consistent structural relationship.

VUKG.L vs. CUKS.L - Sectors Allocation Comparison

Sectors	VUKG.L	CUKS.L
Financial Services	24.5%	24.0%
Consumer Defensive	13.9%	4.1%
Industrials	13.7%	21.1%
Healthcare	13.6%	3.3%
Energy	11.7%	3.3%
Basic Materials	8.5%	6.6%
Utilities	5.3%	3.0%
Consumer Cyclical	4.7%	15.3%
Communication Services	2.6%	6.2%
Real Estate	0.9%	9.0%
Technology	0.8%	4.2%

Return for Risk

VUKG.L vs. CUKS.L — Risk / Return Rank

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

VUKG.L

VUKG.L Risk / Return Rank: 56
VUKG.L Sharpe Ratio Rank: 59
VUKG.L Sortino Ratio Rank: 59
VUKG.L Omega Ratio Rank: 62
VUKG.L Calmar Ratio Rank: 49
VUKG.L Martin Ratio Rank: 48

CUKS.L

CUKS.L Risk / Return Rank: 22
CUKS.L Sharpe Ratio Rank: 23
CUKS.L Sortino Ratio Rank: 23
CUKS.L Omega Ratio Rank: 23
CUKS.L Calmar Ratio Rank: 20
CUKS.L Martin Ratio Rank: 23

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.

VUKG.L vs. CUKS.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard FTSE 100 UCITS ETF (GBP) Accumulating (VUKG.L) and iShares MSCI UK Small Cap UCITS ETF (Acc) (CUKS.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.

	VUKG.L	CUKS.L	Difference
Sharpe ratio: Return per unit of total volatility	1.95	0.79	+1.16
Sortino ratio: Return per unit of downside risk	2.75	1.21	+1.54
Omega ratio: Gain probability vs. loss probability	1.37	1.15	+0.22
Calmar ratio: Return relative to maximum drawdown	2.40	0.86	+1.54
Martin ratio: Return relative to average drawdown	7.96	2.79	+5.17
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VUKG.L vs. CUKS.L - Sharpe Ratio Comparison

The current VUKG.L Sharpe Ratio is 1.95, which is higher than the CUKS.L Sharpe Ratio of 0.79. The chart below compares the historical Sharpe Ratios of VUKG.L and CUKS.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

	VUKG.L	CUKS.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.95	0.79	+1.16
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.92	0.08	+0.84
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.28	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.56	0.47	+0.09

Drawdowns

VUKG.L vs. CUKS.L - Drawdown Comparison

The maximum VUKG.L drawdown since its inception was -34.32%, smaller than the maximum CUKS.L drawdown of -42.42%. Use the drawdown chart below to compare losses from any high point for VUKG.L and CUKS.L.

Drawdown Indicators

	VUKG.L	CUKS.L	Difference
Max Drawdown Largest peak-to-trough decline	-34.32%	-42.42%	+8.10%
Max Drawdown (1Y) Largest decline over 1 year	-8.74%	-12.28%	+3.54%
Max Drawdown (3Y) Largest decline over 3 years	-13.03%	-16.88%	+3.85%
Max Drawdown (5Y) Largest decline over 5 years	-13.03%	-35.35%	+22.32%
Max Drawdown (10Y) Largest decline over 10 years	—	-42.42%	—
Current Drawdown Current decline from peak	-4.16%	-3.63%	-0.53%
Average Drawdown Average peak-to-trough decline	-4.73%	-9.28%	+4.55%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.64%	3.80%	-1.16%

Volatility

VUKG.L vs. CUKS.L - Volatility Comparison

The current volatility for Vanguard FTSE 100 UCITS ETF (GBP) Accumulating (VUKG.L) is 3.86%, while iShares MSCI UK Small Cap UCITS ETF (Acc) (CUKS.L) has a volatility of 4.14%. This indicates that VUKG.L experiences smaller price fluctuations and is considered to be less risky than CUKS.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VUKG.L	CUKS.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.86%	4.14%	-0.28%
Volatility (6M) Calculated over the trailing 6-month period	9.35%	11.09%	-1.74%
Volatility (1Y) Calculated over the trailing 1-year period	10.74%	13.40%	-2.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.75%	15.99%	-3.24%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.13%	17.02%	-0.89%

VUKG.L vs. CUKS.L - Expense Ratio Comparison

VUKG.L has a 0.09% expense ratio, which is lower than CUKS.L's 0.58% expense ratio.

Dividends

VUKG.L vs. CUKS.L - Dividend Comparison

Neither VUKG.L nor CUKS.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both VUKG.L and CUKS.L in my portfolio?

VUKG.L and CUKS.L have a correlation of 0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, VUKG.L or CUKS.L?

On fees, VUKG.L is cheaper at 0.09% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, VUKG.L or CUKS.L?

VUKG.L is cheaper with a 0.09% expense ratio, compared with 0.58% for CUKS.L.

What is the main difference between VUKG.L and CUKS.L?

VUKG.L tracks FTSE AllSh TR GBP, while CUKS.L tracks FTSE Small Cap Ex Invest Trust TR GBP. They also come from different issuers: Vanguard and iShares. Their fees differ too: 0.09% for VUKG.L and 0.58% for CUKS.L.