CSY2.DE vs. LYYB.DE

Last updated Jul 21, 2026

CSY2.DE (CSIF (IE) MSCI USA ESG Leaders Blue UCITS ETF B USD) and LYYB.DE (Amundi MSCI USA ESG Climate Net Zero Ambition CTB UCITS ETF Dist) are both Large Cap Blend Equities funds - CSY2.DE tracks the MSCI USA ESG Leaders while LYYB.DE tracks the MSCI USA ESG Broad Select. Both are passively managed. Over the past 5 years, CSY2.DE returned 13.48%/yr vs 11.76%/yr for LYYB.DE. Their correlation of 0.93 suggests significant overlap in exposure. CSY2.DE charges 0.10%/yr vs 0.09%/yr for LYYB.DE.

Performance

CSY2.DE vs. LYYB.DE - Performance Comparison

The chart below illustrates the hypothetical performance of a €10,000 investment in CSIF (IE) MSCI USA ESG Leaders Blue UCITS ETF B USD (CSY2.DE) and Amundi MSCI USA ESG Climate Net Zero Ambition CTB UCITS ETF Dist (LYYB.DE). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with CSY2.DE having a 11.44% return and LYYB.DE slightly lower at 11.42%.

CSY2.DE

• 1D: 0.58%
• 1M: 0.44%
• 6M: 10.76%
• YTD: 11.44%
• 1Y: 22.74%
• 3Y*: 18.51%
• 5Y*: 13.48%
• 10Y*: —
• ALL TIME*: 16.36%

LYYB.DE

• 1D: 0.37%
• 1M: 0.63%
• 6M: 11.30%
• YTD: 11.42%
• 1Y: 21.08%
• 3Y*: 16.91%
• 5Y*: 11.76%
• 10Y*: 13.66%
• ALL TIME*: 10.89%

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

CSY2.DE vs. LYYB.DE - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
CSY2.DE CSIF (IE) MSCI USA ESG Leaders Blue UCITS ETF B USD	11.44%	6.30%	30.42%	25.14%	-16.59%	44.53%	12.20%
LYYB.DE Amundi MSCI USA ESG Climate Net Zero Ambition CTB UCITS ETF Dist	11.42%	2.83%	31.27%	22.21%	-17.02%	38.79%	38.37%

Correlation

The correlation between CSY2.DE and LYYB.DE is 0.94, 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	0.94
Correlation (3Y) Calculated over the trailing 3-year period	0.93
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (All Time) Calculated using the full available price history since Mar 16, 2020	0.93

The correlation between CSY2.DE and LYYB.DE has been stable across timeframes, ranging from 0.93 to 0.94 - a consistent structural relationship.

Return for Risk

CSY2.DE vs. LYYB.DE — Risk / Return Rank

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

CSY2.DE

CSY2.DE Risk / Return Rank: 71
CSY2.DE Sharpe Ratio Rank: 76
CSY2.DE Sortino Ratio Rank: 73
CSY2.DE Omega Ratio Rank: 73
CSY2.DE Calmar Ratio Rank: 67
CSY2.DE Martin Ratio Rank: 67

LYYB.DE

LYYB.DE Risk / Return Rank: 70
LYYB.DE Sharpe Ratio Rank: 73
LYYB.DE Sortino Ratio Rank: 71
LYYB.DE Omega Ratio Rank: 72
LYYB.DE Calmar Ratio Rank: 68
LYYB.DE Martin Ratio Rank: 65

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.

CSY2.DE vs. LYYB.DE - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for CSIF (IE) MSCI USA ESG Leaders Blue UCITS ETF B USD (CSY2.DE) and Amundi MSCI USA ESG Climate Net Zero Ambition CTB UCITS ETF Dist (LYYB.DE). 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.

	CSY2.DE	LYYB.DE	Difference
Sharpe ratio: Return per unit of total volatility	1.80	1.75	+0.06
Sortino ratio: Return per unit of downside risk	2.48	2.40	+0.09
Omega ratio: Gain probability vs. loss probability	1.32	1.32	0.00
Calmar ratio: Return relative to maximum drawdown	2.48	2.52	-0.05
Martin ratio: Return relative to average drawdown	8.68	8.51	+0.17

CSY2.DE vs. LYYB.DE - Sharpe Ratio Comparison

The current CSY2.DE Sharpe Ratio is 1.80, which is comparable to the LYYB.DE Sharpe Ratio of 1.75. The chart below compares the historical Sharpe Ratios of CSY2.DE and LYYB.DE, 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

CSY2.DE vs. LYYB.DE - Drawdown Comparison

The maximum CSY2.DE drawdown since its inception was -24.56%, smaller than the maximum LYYB.DE drawdown of -53.38%. Use the drawdown chart below to compare losses from any high point for CSY2.DE and LYYB.DE.

Drawdown Indicators

	CSY2.DE	LYYB.DE	Difference
Max Drawdown Largest peak-to-trough decline	-24.56%	-53.38%	+28.82%
Max Drawdown (1Y) Largest decline over 1 year	-9.14%	-8.32%	-0.82%
Max Drawdown (3Y) Largest decline over 3 years	-24.56%	-24.11%	-0.45%
Max Drawdown (5Y) Largest decline over 5 years	-24.56%	-24.11%	-0.45%
Max Drawdown (10Y) Largest decline over 10 years	—	-34.12%	—
Current Drawdown Current decline from peak	-1.17%	-1.02%	-0.15%
Average Drawdown Average peak-to-trough decline	-4.72%	-9.09%	+4.37%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.61%	2.47%	+0.14%

Volatility

CSY2.DE vs. LYYB.DE - Volatility Comparison

CSIF (IE) MSCI USA ESG Leaders Blue UCITS ETF B USD (CSY2.DE) has a higher volatility of 3.30% compared to Amundi MSCI USA ESG Climate Net Zero Ambition CTB UCITS ETF Dist (LYYB.DE) at 3.08%. This indicates that CSY2.DE's price experiences larger fluctuations and is considered to be riskier than LYYB.DE based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CSY2.DE	LYYB.DE	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.30%	3.08%	+0.22%
Volatility (6M) Calculated over the trailing 6-month period	8.77%	8.03%	+0.74%
Volatility (1Y) Calculated over the trailing 1-year period	12.58%	12.04%	+0.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.24%	15.64%	+0.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.42%	16.31%	+2.11%

CSY2.DE vs. LYYB.DE - Expense Ratio Comparison

CSY2.DE has a 0.10% expense ratio, which is higher than LYYB.DE's 0.09% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

CSY2.DE vs. LYYB.DE - Dividend Comparison

CSY2.DE has not paid dividends to shareholders, while LYYB.DE's dividend yield for the trailing twelve months is around 0.81%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CSY2.DE CSIF (IE) MSCI USA ESG Leaders Blue UCITS ETF B USD	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
LYYB.DE Amundi MSCI USA ESG Climate Net Zero Ambition CTB UCITS ETF Dist	0.81%	0.99%	0.78%	0.00%	1.12%	0.95%	1.31%	1.14%	1.81%	1.64%	1.87%	2.03%

Frequently Asked Questions

Can I hold both CSY2.DE and LYYB.DE in my portfolio?

With a correlation of 0.94, CSY2.DE and LYYB.DE move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which ETF is better, CSY2.DE or LYYB.DE?

On fees, LYYB.DE 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, CSY2.DE or LYYB.DE?

LYYB.DE is cheaper with a 0.09% expense ratio, compared with 0.10% for CSY2.DE.

What is the main difference between CSY2.DE and LYYB.DE?

CSY2.DE tracks MSCI USA ESG Leaders, while LYYB.DE tracks MSCI USA ESG Broad Select. They also come from different issuers: Credit Suisse and Amundi. Their fees differ too: 0.10% for CSY2.DE and 0.09% for LYYB.DE.