CSUK.L vs. PRUK.L

Last updated Jun 4, 2026

CSUK.L (iShares MSCI UK UCITS ETF (Acc)) and PRUK.L (Amundi Prime UK Mid and Small Cap UCITS ETF DR GBP (D)) are both Europe Equities funds - CSUK.L tracks the FTSE AllSh TR GBP while PRUK.L tracks the FTSE 250 Ex Investment Trust TR GBP. Both are passively managed. Over the past 5 years, CSUK.L returned 12.01%/yr vs 0.56%/yr for PRUK.L. A 0.62 correlation means they provide meaningful diversification when combined. CSUK.L charges 0.33%/yr vs 0.05%/yr for PRUK.L.

Performance

CSUK.L vs. PRUK.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in iShares MSCI UK UCITS ETF (Acc) (CSUK.L) and Amundi Prime UK Mid and Small Cap UCITS ETF DR GBP (D) (PRUK.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CSUK.L achieves a 5.97% return, which is significantly higher than PRUK.L's 1.86% return.

CSUK.L

• 1D: -0.36%
• 1M: -0.19%
• YTD: 5.97%
• 6M: 8.48%
• 1Y: 21.21%
• 3Y*: 14.38%
• 5Y*: 12.01%
• 10Y*: 8.88%

PRUK.L

• 1D: -1.21%
• 1M: 2.07%
• YTD: 1.86%
• 6M: 4.66%
• 1Y: 9.73%
• 3Y*: 8.43%
• 5Y*: 0.56%
• 10Y*: —

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

CSUK.L vs. PRUK.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
CSUK.L iShares MSCI UK UCITS ETF (Acc)	5.97%	25.26%	8.91%	6.86%	7.23%	18.18%	6.67%
PRUK.L Amundi Prime UK Mid and Small Cap UCITS ETF DR GBP (D)	1.86%	13.57%	5.85%	7.37%	-22.76%	12.69%	22.98%

Correlation

The correlation between CSUK.L and PRUK.L is 0.59, 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	0.59
Correlation (3Y) Calculated over the trailing 3-year period	0.64
Correlation (5Y) Calculated over the trailing 5-year period	0.66
Correlation (All Time) Calculated using the full available price history since Jul 29, 2020	0.62

The correlation between CSUK.L and PRUK.L has been stable across timeframes, ranging from 0.59 to 0.66 - a consistent structural relationship.

CSUK.L vs. PRUK.L - Sectors Allocation Comparison

Sectors	CSUK.L	PRUK.L
Financial Services	25.2%	19.9%
Healthcare	14.6%	2.9%
Consumer Defensive	13.5%	6.4%
Industrials	12.7%	22.2%
Energy	11.2%	2.9%
Basic Materials	9.7%	7.3%
Utilities	5.1%	3.4%
Consumer Cyclical	4.2%	13.2%
Communication Services	2.5%	6.8%
Technology	0.6%	7.0%
Real Estate	0.6%	8.0%

Return for Risk

CSUK.L vs. PRUK.L — Risk / Return Rank

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

CSUK.L

CSUK.L Risk / Return Rank: 53
CSUK.L Sharpe Ratio Rank: 56
CSUK.L Sortino Ratio Rank: 55
CSUK.L Omega Ratio Rank: 57
CSUK.L Calmar Ratio Rank: 49
CSUK.L Martin Ratio Rank: 50

PRUK.L

PRUK.L Risk / Return Rank: 20
PRUK.L Sharpe Ratio Rank: 21
PRUK.L Sortino Ratio Rank: 21
PRUK.L Omega Ratio Rank: 20
PRUK.L Calmar Ratio Rank: 18
PRUK.L Martin Ratio Rank: 21

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.

CSUK.L vs. PRUK.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares MSCI UK UCITS ETF (Acc) (CSUK.L) and Amundi Prime UK Mid and Small Cap UCITS ETF DR GBP (D) (PRUK.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.

	CSUK.L	PRUK.L	Difference
Sharpe ratio: Return per unit of total volatility	1.89	0.69	+1.20
Sortino ratio: Return per unit of downside risk	2.64	1.07	+1.57
Omega ratio: Gain probability vs. loss probability	1.35	1.13	+0.22
Calmar ratio: Return relative to maximum drawdown	2.37	0.74	+1.63
Martin ratio: Return relative to average drawdown	8.37	2.48	+5.89
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CSUK.L vs. PRUK.L - Sharpe Ratio Comparison

The current CSUK.L Sharpe Ratio is 1.89, which is higher than the PRUK.L Sharpe Ratio of 0.69. The chart below compares the historical Sharpe Ratios of CSUK.L and PRUK.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

	CSUK.L	PRUK.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.89	0.69	+1.20
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.94	0.03	+0.91
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.59	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.49	0.37	+0.12

Drawdowns

CSUK.L vs. PRUK.L - Drawdown Comparison

The maximum CSUK.L drawdown since its inception was -34.55%, roughly equal to the maximum PRUK.L drawdown of -36.10%. Use the drawdown chart below to compare losses from any high point for CSUK.L and PRUK.L.

Drawdown Indicators

	CSUK.L	PRUK.L	Difference
Max Drawdown Largest peak-to-trough decline	-34.55%	-36.10%	+1.55%
Max Drawdown (1Y) Largest decline over 1 year	-8.91%	-13.05%	+4.14%
Max Drawdown (3Y) Largest decline over 3 years	-12.65%	-18.00%	+5.35%
Max Drawdown (5Y) Largest decline over 5 years	-12.65%	-36.10%	+23.45%
Max Drawdown (10Y) Largest decline over 10 years	-34.55%	—	—
Current Drawdown Current decline from peak	-4.18%	-4.72%	+0.54%
Average Drawdown Average peak-to-trough decline	-4.72%	-14.81%	+10.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.53%	3.92%	-1.39%

Volatility

CSUK.L vs. PRUK.L - Volatility Comparison

iShares MSCI UK UCITS ETF (Acc) (CSUK.L) and Amundi Prime UK Mid and Small Cap UCITS ETF DR GBP (D) (PRUK.L) have volatilities of 4.66% and 4.76%, 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.

Volatility by Period

	CSUK.L	PRUK.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.66%	4.76%	-0.10%
Volatility (6M) Calculated over the trailing 6-month period	9.73%	11.71%	-1.98%
Volatility (1Y) Calculated over the trailing 1-year period	11.17%	14.11%	-2.94%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.74%	16.53%	-3.79%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.08%	17.45%	-2.37%

CSUK.L vs. PRUK.L - Expense Ratio Comparison

CSUK.L has a 0.33% expense ratio, which is higher than PRUK.L's 0.05% expense ratio.

Dividends

CSUK.L vs. PRUK.L - Dividend Comparison

CSUK.L has not paid dividends to shareholders, while PRUK.L's dividend yield for the trailing twelve months is around 3.63%.

Position	TTM	2025	2024	2023	2022	2021	2020
CSUK.L iShares MSCI UK UCITS ETF (Acc)	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
PRUK.L Amundi Prime UK Mid and Small Cap UCITS ETF DR GBP (D)	3.63%	3.70%	3.63%	3.43%	3.50%	1.73%	0.29%

Frequently Asked Questions

Can I hold both CSUK.L and PRUK.L in my portfolio?

CSUK.L and PRUK.L have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, CSUK.L or PRUK.L?

On fees, PRUK.L is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, CSUK.L or PRUK.L?

PRUK.L is cheaper with a 0.05% expense ratio, compared with 0.33% for CSUK.L.

What is the main difference between CSUK.L and PRUK.L?

CSUK.L tracks FTSE AllSh TR GBP, while PRUK.L tracks FTSE 250 Ex Investment Trust TR GBP. They also come from different issuers: iShares and Amundi. Their fees differ too: 0.33% for CSUK.L and 0.05% for PRUK.L.