ISX5.L vs. CS1.L

Last updated Jun 26, 2026

ISX5.L (iShares Core EURO STOXX 50 UCITS ETF) and CS1.L (Amundi ETF MSCI Spain UCITS ETF EUR (C)) are both Europe Equities funds - ISX5.L tracks the MSCI EMU NR EUR while CS1.L tracks the BME IBEX 35 NR EUR. Both are passively managed. Over the past 10 years, ISX5.L returned 13.42%/yr vs 13.76%/yr for CS1.L. A 0.78 correlation means they provide meaningful diversification when combined. ISX5.L charges 0.00%/yr vs 0.25%/yr for CS1.L.

Performance

ISX5.L vs. CS1.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Core EURO STOXX 50 UCITS ETF (ISX5.L) and Amundi ETF MSCI Spain UCITS ETF EUR (C) (CS1.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

ISX5.L is traded in USD, while CS1.L is traded in GBp. To make them comparable, the CS1.L values have been converted to USD using the latest available exchange rates.

Returns By Period

In the year-to-date period, ISX5.L achieves a 6.98% return, which is significantly lower than CS1.L's 10.99% return. Both investments have delivered pretty close results over the past 10 years, with ISX5.L having a 13.42% annualized return and CS1.L not far ahead at 13.76%.

ISX5.L

• 1D: 1.09%
• 1M: 1.30%
• YTD: 6.98%
• 6M: 7.17%
• 1Y: 19.65%
• 3Y*: 18.41%
• 5Y*: 10.88%
• 10Y*: 13.42%

CS1.L

• 1D: 0.77%
• 1M: 4.46%
• YTD: 10.99%
• 6M: 11.37%
• 1Y: 42.51%
• 3Y*: 34.75%
• 5Y*: 19.55%
• 10Y*: 13.76%

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

ISX5.L vs. CS1.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ISX5.L iShares Core EURO STOXX 50 UCITS ETF	6.98%	37.35%	4.59%	26.91%	-13.63%	13.94%	6.81%	25.61%	1.58%	9.70%
CS1.L Amundi ETF MSCI Spain UCITS ETF EUR (C)	10.99%	74.90%	12.22%	30.69%	-6.32%	-0.32%	-4.65%	12.40%	-16.29%	26.97%

Correlation

The correlation between ISX5.L and CS1.L is 0.84, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.84
Correlation (3Y) Calculated over the trailing 3-year period	0.78
Correlation (5Y) Calculated over the trailing 5-year period	0.79
Correlation (10Y) Calculated over the trailing 10-year period	0.76
Correlation (All Time) Calculated using the full available price history since Jan 26, 2010	0.78

The correlation between ISX5.L and CS1.L has been stable across timeframes, ranging from 0.76 to 0.84 - a consistent structural relationship.

ISX5.L vs. CS1.L - Sectors Allocation Comparison

Sectors	ISX5.L	CS1.L
Financial Services	26.2%	40.7%
Industrials	22.2%	15.9%
Technology	16.3%	3.5%
Consumer Cyclical	9.8%	11.0%
Consumer Defensive	5.4%	0.3%
Healthcare	5.1%	0.6%
Utilities	4.8%	18.1%
Energy	4.7%	2.6%
Basic Materials	3.4%	1.5%
Communication Services	2.1%	2.4%
Real Estate	-	3.3%

Return for Risk

ISX5.L vs. CS1.L — Risk / Return Rank

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

ISX5.L

ISX5.L Risk / Return Rank: 34
ISX5.L Sharpe Ratio Rank: 33
ISX5.L Sortino Ratio Rank: 35
ISX5.L Omega Ratio Rank: 33
ISX5.L Calmar Ratio Rank: 33
ISX5.L Martin Ratio Rank: 37

CS1.L

CS1.L Risk / Return Rank: 90
CS1.L Sharpe Ratio Rank: 93
CS1.L Sortino Ratio Rank: 92
CS1.L Omega Ratio Rank: 92
CS1.L Calmar Ratio Rank: 88
CS1.L Martin Ratio Rank: 85

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.

ISX5.L vs. CS1.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Core EURO STOXX 50 UCITS ETF (ISX5.L) and Amundi ETF MSCI Spain UCITS ETF EUR (C) (CS1.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.

	ISX5.L	CS1.L	Difference
Sharpe ratio: Return per unit of total volatility	1.08	2.34	-1.26
Sortino ratio: Return per unit of downside risk	1.69	3.18	-1.50
Omega ratio: Gain probability vs. loss probability	1.21	1.41	-0.21
Calmar ratio: Return relative to maximum drawdown	1.51	3.67	-2.15
Martin ratio: Return relative to average drawdown	5.10	12.27	-7.18

ISX5.L vs. CS1.L - Sharpe Ratio Comparison

The current ISX5.L Sharpe Ratio is 1.08, which is lower than the CS1.L Sharpe Ratio of 2.34. The chart below compares the historical Sharpe Ratios of ISX5.L and CS1.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

ISX5.L vs. CS1.L - Drawdown Comparison

The maximum ISX5.L drawdown since its inception was -38.62%, smaller than the maximum CS1.L drawdown of -60.53%. Use the drawdown chart below to compare losses from any high point for ISX5.L and CS1.L.

Drawdown Indicators

	ISX5.L	CS1.L	Difference
Max Drawdown Largest peak-to-trough decline	-38.62%	-60.53%	+21.91%
Max Drawdown (1Y) Largest decline over 1 year	-12.92%	-11.54%	-1.38%
Max Drawdown (3Y) Largest decline over 3 years	-15.36%	-12.14%	-3.22%
Max Drawdown (5Y) Largest decline over 5 years	-34.86%	-32.11%	-2.75%
Max Drawdown (10Y) Largest decline over 10 years	-38.62%	-45.92%	+7.30%
Current Drawdown Current decline from peak	-2.21%	-0.79%	-1.42%
Average Drawdown Average peak-to-trough decline	-8.32%	-26.58%	+18.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.85%	3.45%	+0.40%

Volatility

ISX5.L vs. CS1.L - Volatility Comparison

iShares Core EURO STOXX 50 UCITS ETF (ISX5.L) has a higher volatility of 4.53% compared to Amundi ETF MSCI Spain UCITS ETF EUR (C) (CS1.L) at 4.14%. This indicates that ISX5.L's price experiences larger fluctuations and is considered to be riskier than CS1.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ISX5.L	CS1.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.53%	4.14%	+0.39%
Volatility (6M) Calculated over the trailing 6-month period	15.31%	15.24%	+0.07%
Volatility (1Y) Calculated over the trailing 1-year period	18.11%	18.11%	0.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.90%	21.58%	+0.32%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.76%	21.24%	+0.52%

ISX5.L vs. CS1.L - Expense Ratio Comparison

ISX5.L has a 0.00% expense ratio, which is lower than CS1.L's 0.25% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

ISX5.L vs. CS1.L - Dividend Comparison

Neither ISX5.L nor CS1.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both ISX5.L and CS1.L in my portfolio?

ISX5.L and CS1.L have a correlation of 0.84, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, ISX5.L or CS1.L?

On fees, ISX5.L is cheaper at 0.00% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, ISX5.L or CS1.L?

ISX5.L is cheaper with a 0.00% expense ratio, compared with 0.25% for CS1.L.

What is the main difference between ISX5.L and CS1.L?

ISX5.L tracks MSCI EMU NR EUR, while CS1.L tracks BME IBEX 35 NR EUR. They also come from different issuers: iShares and Amundi. Their fees differ too: 0.00% for ISX5.L and 0.25% for CS1.L.