CUSS.L vs. WLDS.L
CUSS.L (iShares MSCI USA Small Cap CTB Enhanced ESG UCITS ETF USD (Acc)) and WLDS.L (iShares MSCI World Small Cap UCITS ETF) are both Small Cap Blend Equities funds from iShares - CUSS.L tracks the MSCI USA Small Cap ESG Enhanced CTB Index while WLDS.L tracks the MSCI World Small Cap Index. Both are passively managed. Over the past 5 years, CUSS.L returned 7.45%/yr vs 7.88%/yr for WLDS.L. Their correlation of 0.91 suggests significant overlap in exposure. CUSS.L charges 0.43%/yr vs 0.35%/yr for WLDS.L.
Performance
CUSS.L vs. WLDS.L - Performance Comparison
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Different Trading Currencies
CUSS.L is traded in USD, while WLDS.L is traded in GBP. To make them comparable, the WLDS.L values have been converted to USD using the latest available exchange rates.
Returns By Period
In the year-to-date period, CUSS.L achieves a 16.17% return, which is significantly higher than WLDS.L's 14.74% return.
CUSS.L
- 1D
- -0.63%
- 1M
- -1.86%
- 6M
- 11.10%
- YTD
- 16.17%
- 1Y
- 29.03%
- 3Y*
- 13.99%
- 5Y*
- 7.45%
- 10Y*
- 10.74%
WLDS.L
- 1D
- 0.49%
- 1M
- -1.02%
- 6M
- 9.68%
- YTD
- 14.74%
- 1Y
- 27.06%
- 3Y*
- 16.00%
- 5Y*
- 7.88%
- 10Y*
- —
CUSS.L vs. WLDS.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
CUSS.L iShares MSCI USA Small Cap CTB Enhanced ESG UCITS ETF USD (Acc) | 16.17% | 10.15% | 9.80% | 17.73% | -17.15% | 18.55% | 18.55% | 26.39% | -9.06% |
WLDS.L iShares MSCI World Small Cap UCITS ETF | 14.74% | 20.19% | 6.82% | 17.13% | -18.63% | 15.66% | 15.99% | 25.24% | -37.96% |
Correlation
The correlation between CUSS.L and WLDS.L is 0.91, 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 | 0.91 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.91 |
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 CUSS.L and WLDS.L has been stable across timeframes, ranging from 0.91 to 0.92 - a consistent structural relationship.
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Return for Risk
CUSS.L vs. WLDS.L — Risk / Return Rank
CUSS.L
WLDS.L
CUSS.L vs. WLDS.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares MSCI USA Small Cap CTB Enhanced ESG UCITS ETF USD (Acc) (CUSS.L) and iShares MSCI World Small Cap UCITS ETF (WLDS.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.
| CUSS.L | WLDS.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.07 | ||
| Sortino ratioReturn per unit of downside risk | +0.10 | ||
| Omega ratioGain probability vs. loss probability | 1.33 | 1.32 | +0.01 |
| Calmar ratioReturn relative to maximum drawdown | 3.74 | 2.94 | +0.79 |
| Martin ratioReturn relative to average drawdown | 12.44 | 10.61 | +1.83 |
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Drawdowns
CUSS.L vs. WLDS.L - Drawdown Comparison
The maximum CUSS.L drawdown since its inception was -42.70%, smaller than the maximum WLDS.L drawdown of -53.62%. Use the drawdown chart below to compare losses from any high point for CUSS.L and WLDS.L.
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Drawdown Indicators
| CUSS.L | WLDS.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -42.70% | -53.62% | +10.92% |
Max Drawdown (1Y)Largest decline over 1 year | -8.38% | -9.16% | +0.78% |
Max Drawdown (3Y)Largest decline over 3 years | -27.77% | -20.00% | -7.77% |
Max Drawdown (5Y)Largest decline over 5 years | -28.73% | -30.96% | +2.23% |
Max Drawdown (10Y)Largest decline over 10 years | -42.70% | — | — |
Current DrawdownCurrent decline from peak | -3.61% | -1.50% | -2.11% |
Average DrawdownAverage peak-to-trough decline | -6.94% | -15.76% | +8.82% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.52% | 2.55% | -0.03% |
Volatility
CUSS.L vs. WLDS.L - Volatility Comparison
iShares MSCI USA Small Cap CTB Enhanced ESG UCITS ETF USD (Acc) (CUSS.L) has a higher volatility of 4.69% compared to iShares MSCI World Small Cap UCITS ETF (WLDS.L) at 4.15%. This indicates that CUSS.L's price experiences larger fluctuations and is considered to be riskier than WLDS.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CUSS.L | WLDS.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.69% | 4.15% | +0.54% |
Volatility (6M)Calculated over the trailing 6-month period | 12.22% | 11.43% | +0.79% |
Volatility (1Y)Calculated over the trailing 1-year period | 16.59% | 14.70% | +1.89% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.16% | 22.22% | -1.06% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.92% | 23.98% | -3.06% |
CUSS.L vs. WLDS.L - Expense Ratio Comparison
CUSS.L has a 0.43% expense ratio, which is higher than WLDS.L's 0.35% expense ratio.
Dividends
CUSS.L vs. WLDS.L - Dividend Comparison
Neither CUSS.L nor WLDS.L has paid dividends to shareholders.
Frequently Asked Questions
With a correlation of 0.91, CUSS.L and WLDS.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.
CUSS.L tracks MSCI USA Small Cap ESG Enhanced CTB Index, while WLDS.L tracks MSCI World Small Cap Index. Their fees differ too: 0.43% for CUSS.L and 0.35% for WLDS.L.
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