WELS.DE vs. CBUF.DE
WELS.DE (Amundi S&P Global Health Care ESG UCITS ETF EUR Acc) and CBUF.DE (iShares MSCI World Health Care Sector ESG UCITS ETF USD Dist) are both Health & Biotech Equities funds - WELS.DE tracks the S&P Developed Ex-Korea LargeMidCap Sustainability Enhanced Health Care while CBUF.DE tracks the MSCI World Health Care ESG Reduced Carbon Select 20 35 Capped. Both are passively managed. Over the past 3 years, WELS.DE returned 2.22%/yr vs 0.62%/yr for CBUF.DE. Their correlation of 0.94 suggests significant overlap in exposure. Both charge a 0.18% expense ratio.
Performance
WELS.DE vs. CBUF.DE - Performance Comparison
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Returns By Period
In the year-to-date period, WELS.DE achieves a -3.35% return, which is significantly lower than CBUF.DE's -2.22% return.
WELS.DE
- 1D
- 2.97%
- 1M
- 4.14%
- YTD
- -3.35%
- 6M
- -2.82%
- 1Y
- 6.93%
- 3Y*
- 2.22%
- 5Y*
- —
- 10Y*
- —
CBUF.DE
- 1D
- 2.74%
- 1M
- 3.91%
- YTD
- -2.22%
- 6M
- -1.50%
- 1Y
- 7.40%
- 3Y*
- 0.62%
- 5Y*
- 4.66%
- 10Y*
- —
WELS.DE vs. CBUF.DE - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
WELS.DE Amundi S&P Global Health Care ESG UCITS ETF EUR Acc | -3.35% | 1.05% | 7.20% | 2.33% | 4.02% |
CBUF.DE iShares MSCI World Health Care Sector ESG UCITS ETF USD Dist | -2.22% | 2.56% | 0.75% | 0.33% | 3.46% |
Correlation
The correlation between WELS.DE and CBUF.DE is 0.96 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.96 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.94 |
Correlation (All Time) Calculated using the full available price history since Oct 12, 2022 | 0.94 |
The correlation between WELS.DE and CBUF.DE has been stable across timeframes, ranging from 0.94 to 0.96 - a consistent structural relationship.
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Return for Risk
WELS.DE vs. CBUF.DE — Risk / Return Rank
WELS.DE
CBUF.DE
WELS.DE vs. CBUF.DE - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Amundi S&P Global Health Care ESG UCITS ETF EUR Acc (WELS.DE) and iShares MSCI World Health Care Sector ESG UCITS ETF USD Dist (CBUF.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.
| WELS.DE | CBUF.DE | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.05 | ||
| Sortino ratioReturn per unit of downside risk | -0.05 | ||
| Omega ratioGain probability vs. loss probability | 1.09 | 1.10 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 0.56 | 0.68 | -0.12 |
| Martin ratioReturn relative to average drawdown | 1.30 | 1.56 | -0.26 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| WELS.DE | CBUF.DE | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.47 | 0.53 | -0.05 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 0.34 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.22 | 0.44 | -0.22 |
Drawdowns
WELS.DE vs. CBUF.DE - Drawdown Comparison
The maximum WELS.DE drawdown since its inception was -23.13%, smaller than the maximum CBUF.DE drawdown of -25.94%. Use the drawdown chart below to compare losses from any high point for WELS.DE and CBUF.DE.
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Drawdown Indicators
| WELS.DE | CBUF.DE | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -23.13% | -25.94% | +2.81% |
Max Drawdown (1Y)Largest decline over 1 year | -12.35% | -10.87% | -1.48% |
Max Drawdown (3Y)Largest decline over 3 years | -23.13% | -21.76% | -1.37% |
Max Drawdown (5Y)Largest decline over 5 years | — | -21.76% | — |
Current DrawdownCurrent decline from peak | -12.08% | -9.66% | -2.42% |
Average DrawdownAverage peak-to-trough decline | -7.30% | -5.65% | -1.65% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.34% | 4.74% | +0.60% |
Volatility
WELS.DE vs. CBUF.DE - Volatility Comparison
Amundi S&P Global Health Care ESG UCITS ETF EUR Acc (WELS.DE) has a higher volatility of 5.27% compared to iShares MSCI World Health Care Sector ESG UCITS ETF USD Dist (CBUF.DE) at 4.98%. This indicates that WELS.DE's price experiences larger fluctuations and is considered to be riskier than CBUF.DE based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| WELS.DE | CBUF.DE | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.27% | 4.98% | +0.29% |
Volatility (6M)Calculated over the trailing 6-month period | 10.22% | 9.70% | +0.52% |
Volatility (1Y)Calculated over the trailing 1-year period | 14.60% | 13.98% | +0.62% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 13.59% | 13.60% | -0.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 13.59% | 15.36% | -1.77% |
WELS.DE vs. CBUF.DE - Expense Ratio Comparison
Both WELS.DE and CBUF.DE have an expense ratio of 0.18%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
WELS.DE vs. CBUF.DE - Dividend Comparison
WELS.DE has not paid dividends to shareholders, while CBUF.DE's dividend yield for the trailing twelve months is around 1.08%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
CBUF.DE iShares MSCI World Health Care Sector ESG UCITS ETF USD Dist | 1.08% | 1.06% | 1.02% | 1.16% | 1.09% | 1.05% | 1.27% | 0.10% |
WELS.DE Amundi S&P Global Health Care ESG UCITS ETF EUR Acc | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
With a correlation of 0.96, WELS.DE and CBUF.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.
Both ETFs have the same 0.18% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.
WELS.DE and CBUF.DE have the same expense ratio: 0.18% per year.
WELS.DE tracks S&P Developed Ex-Korea LargeMidCap Sustainability Enhanced Health Care, while CBUF.DE tracks MSCI World Health Care ESG Reduced Carbon Select 20 35 Capped. They also come from different issuers: Amundi and iShares.
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