WLDS.L vs. CUSS.L
WLDS.L (iShares MSCI World Small Cap UCITS ETF) and CUSS.L (iShares MSCI USA Small Cap CTB Enhanced ESG UCITS ETF USD (Acc)) are both Small Cap Blend Equities funds from iShares - WLDS.L tracks the MSCI World Small Cap Index while CUSS.L tracks the MSCI USA Small Cap ESG Enhanced CTB Index. Both are passively managed. Over the past 5 years, WLDS.L returned 8.23%/yr vs 7.96%/yr for CUSS.L. Their correlation of 0.91 suggests significant overlap in exposure. WLDS.L charges 0.35%/yr vs 0.43%/yr for CUSS.L.
Performance
WLDS.L vs. CUSS.L - Performance Comparison
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Different Trading Currencies
WLDS.L is traded in GBP, while CUSS.L is traded in USD. To make them comparable, the CUSS.L values have been converted to GBP using the latest available exchange rates.
Returns By Period
In the year-to-date period, WLDS.L achieves a 14.07% return, which is significantly lower than CUSS.L's 16.43% return.
WLDS.L
- 1D
- -0.65%
- 1M
- -1.91%
- 6M
- 8.91%
- YTD
- 14.07%
- 1Y
- 25.61%
- 3Y*
- 14.72%
- 5Y*
- 8.23%
- 10Y*
- —
CUSS.L
- 1D
- 0.00%
- 1M
- -2.10%
- 6M
- 11.12%
- YTD
- 16.43%
- 1Y
- 28.47%
- 3Y*
- 12.93%
- 5Y*
- 7.96%
- 10Y*
- 10.58%
WLDS.L vs. CUSS.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
WLDS.L iShares MSCI World Small Cap UCITS ETF | 14.07% | 11.75% | 8.63% | 11.26% | -8.89% | 16.71% | 12.54% | 20.41% | -31.05% |
CUSS.L iShares MSCI USA Small Cap CTB Enhanced ESG UCITS ETF USD (Acc) | 16.43% | 2.30% | 11.72% | 11.84% | -7.30% | 19.67% | 15.07% | 21.58% | 1.44% |
Correlation
The correlation between WLDS.L and CUSS.L is 0.92, 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 | 0.92 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.92 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.92 |
Correlation (All Time) Calculated using the full available price history since Mar 27, 2018 | 0.91 |
The correlation between WLDS.L and CUSS.L has been stable across timeframes, ranging from 0.91 to 0.92 - a consistent structural relationship.
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Return for Risk
WLDS.L vs. CUSS.L — Risk / Return Rank
WLDS.L
CUSS.L
WLDS.L vs. CUSS.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares MSCI World Small Cap UCITS ETF (WLDS.L) and iShares MSCI USA Small Cap CTB Enhanced ESG UCITS ETF USD (Acc) (CUSS.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.
| WLDS.L | CUSS.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.01 | ||
| Sortino ratioReturn per unit of downside risk | +0.04 | ||
| Omega ratioGain probability vs. loss probability | 1.34 | 1.33 | +0.01 |
| Calmar ratioReturn relative to maximum drawdown | 3.24 | 4.52 | -1.27 |
| Martin ratioReturn relative to average drawdown | 11.89 | 13.69 | -1.80 |
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Drawdowns
WLDS.L vs. CUSS.L - Drawdown Comparison
The maximum WLDS.L drawdown since its inception was -43.18%, which is greater than CUSS.L's maximum drawdown of -35.69%. Use the drawdown chart below to compare losses from any high point for WLDS.L and CUSS.L.
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Drawdown Indicators
| WLDS.L | CUSS.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -43.18% | -35.69% | -7.49% |
Max Drawdown (1Y)Largest decline over 1 year | -7.86% | -6.87% | -0.99% |
Max Drawdown (3Y)Largest decline over 3 years | -21.53% | -29.20% | +7.67% |
Max Drawdown (5Y)Largest decline over 5 years | -21.53% | -29.20% | +7.67% |
Max Drawdown (10Y)Largest decline over 10 years | — | -35.69% | — |
Current DrawdownCurrent decline from peak | -3.39% | -4.86% | +1.47% |
Average DrawdownAverage peak-to-trough decline | -12.16% | -6.22% | -5.94% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.15% | 2.27% | -0.12% |
Volatility
WLDS.L vs. CUSS.L - Volatility Comparison
The current volatility for iShares MSCI World Small Cap UCITS ETF (WLDS.L) is 4.20%, while iShares MSCI USA Small Cap CTB Enhanced ESG UCITS ETF USD (Acc) (CUSS.L) has a volatility of 4.87%. This indicates that WLDS.L experiences smaller price fluctuations and is considered to be less risky than CUSS.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| WLDS.L | CUSS.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.20% | 4.87% | -0.67% |
Volatility (6M)Calculated over the trailing 6-month period | 10.27% | 12.04% | -1.77% |
Volatility (1Y)Calculated over the trailing 1-year period | 13.23% | 16.29% | -3.06% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.34% | 20.11% | +0.23% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.37% | 20.42% | +1.95% |
WLDS.L vs. CUSS.L - Expense Ratio Comparison
WLDS.L has a 0.35% expense ratio, which is lower than CUSS.L's 0.43% expense ratio.
Dividends
WLDS.L vs. CUSS.L - Dividend Comparison
Neither WLDS.L nor CUSS.L has paid dividends to shareholders.
Frequently Asked Questions
With a correlation of 0.92, WLDS.L and CUSS.L 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.
On fees, WLDS.L is cheaper at 0.35% per year. The better choice depends on whether you care most about return, fees, risk, or income.
WLDS.L is cheaper with a 0.35% expense ratio, compared with 0.43% for CUSS.L.
WLDS.L tracks MSCI World Small Cap Index, while CUSS.L tracks MSCI USA Small Cap ESG Enhanced CTB Index. Their fees differ too: 0.35% for WLDS.L and 0.43% for CUSS.L.
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